CONTENTS

4

16

72

ReportRebuilds

Service

4 In the realm of the rainforest –14 A complete rebuild without any

10 Anti-aging treatment forsustainable commerce and industry
in Brazil

71 Paper for over 10 million Harry Potter
books

72 Opening of new Technology andService Center in Kunshan, China

downtime at collective combine

stock preparation machinery

JSC Kiev Cardboard & Paper Mill

42 Interview: Felt washing for clean

16 Better quality and increase inproduction through ModulePro nozzle
moisturizer in Kehl

20 Sun Paper – in just 6 hours to salable

39 The 8 mm success factor at Fors
53 Modernization of the VariRoll center
drum winder at M-real in Biberistpaper

36 Yuen Foong Yu steps up Chinese
testliner production

60 New 3DG grinding concept –Roll grinding in the third dimension

32 APP Ningbo BM 2 moves into art board
production

New Plants

clothing

Products
23 G-Flex – new grooved stainlesssteel roll cover

24 Headbox MasterJet II
for super sheet formation

26 DuoCleaner Express –innovative dryer fabric cleaning

29 Stable grade changes thanks to

R&D
50 EcoSoft M and EcoCal M – a newgeneration of Nipcorect calenders

64 New Finishing roll covers
66 New fiber test equipment FiberXPressNews
68 New division Voith Paper Air Systems
74 New paper book: The Role of Paper
74 Change of staff in the twogether
editorial office

75 News from the Voith GroupOnQ GradeManager

44 Expand the operating window with
Horizon forming fabrics

47 One more step in the developmentof non-woven press fabrics

Regular Features
3 Editorial
76 Imprint

56 EvoTec and CarboTec –the new roll generations

62 The perfect single-source trio:
roll, cover and doctor blades

2

25 I 2008 I Voith Paper I twogether

EDITORIAL

Dr. Hans-Peter Sollinger
Member of the Corporate
Management Board Voith AG
and President of Voith Paper

Dear customers and other readers,

air technology in the paper industry,
but the new division has also opened

Looking back over a successful year

up new sectors such as food, textiles,

2007, we can be well satisfied. The

beverages or tobacco. Please turn todelivered new production lines andpage 68 of this issue for more infor-

rebuilds went into operation as

mation.

planned and, after brief optimization
phases, soon achieved their produc-

In order to better meet the needs

tion targets.

of our customers in China and theAsia-Pacific region, we opened a

The satisfying volume of orders also

new Technology and Service Center

had a positive influence on our annualin Kunshan, China, at the end of theresults. The bulk orders from theyear. So far the first phase is com-

Board and Packaging divisionplete, and the second phase will bedeserve a special mention in thiscompleted by autumn 2008. By thenrespect.

more than 70,000 m2 of manufacturing and administration area will be

The production of packaging foravailable in the so-called “Voith Paper

liquids at the new Klabin production

City.” Please turn to page 72 of thisline in Brazil has also started well.

issue for more detailed information.

We would like to point out anotheraspect of the business here – sustain-

All in all, therefore, an eventful year isable forestry – a topic, which de-

now drawing to a close. I would likeserves as much attention as the im-

to take this opportunity to wish you allpressive board machine. You cana very Merry Christmas and a Happy

read more about Klabin’s contribution

New Year.

on pages 4 to 9.
One of the reasons for our growth
this past year has been the new“Voith Paper Air Systems” division.
Not only are we using cooling and

25 I 2008 I Voith Paper I twogether

On behalf of the Voith Paper team3

REPORT

In the realm of the rainforest – sustainREPORT

able commerce and industry in Brazil

REPORT

The new paper board machine from Voith on Monte Alegre is almost 240 meters long

There, where eucalyptus plantations and the primeval forest meet, environment and human impact
are kept in a positive balance. Klabin S.A., a Voith
customer, shows how closely economic success islinked to ecologically and socially sustainablebusiness management.

6

In some industrialized countries, Bra-sided views, it is often forgotten thatzil is often regarded as the epitome ofBrazil is leading the way for bothunchecked overexploitation of the en-environmental protection and sustain-

vironment. Typical examples that may

able development in many areas. Justbe cited include brutally slashing andthink, for example, that the majority

burning the Amazon rainforest andof motor vehicles registered in Brazil

recklessly using mercury and other in

run on ethanol, an especially environ-precious metal extraction using toxic

mentally friendly and climate-neutral

substances. There is no doubt that

fuel that is made from local sugar

some environmental crimes are com-cane. And many of the country’s

mitted in the largest South American

extremely successful and innovative

country. However, with such one-industrial firms have also turned to

25 I 2008 I Voith Paper I twogether

REPORTsustainable production. In Brazil’s

inspection, however, the attentive

paper and pulp industry in particular,

observer will notice that the mono-sustainable and environmentally

cultures are interspersed with large

friendly company management has

stands of native trees. The monkey

now become a matter of course. At

puzzle trees, above all, with their

Klabin S.A., a customer of Voith Paper

unique upward-reaching branches

and the largest manufacturer of paper

are a particular eyecatcher.

products in the country, this concept
has now become the guiding princi-

Shortly after the gondola ride, Ivone

ple for the entire group of enterprises,

Namikawa shows the visitor thesewhich is still largely family owned.

typical southern Latin American trees
up close, with their cones that are

Up and away on the gondola

shaped like Brazil nuts. We find ourselves in the Monte Alegre natural

With the cable car to work: the employees
have an incomparable view of the mill

The red cars of the cableway, whichpark, which Klabin established insway with hundreds of employees

close proximity to its mill in 1992.

from the village Telêmaco Borba to

There, the head of research and de-the paper mill on Monte Alegre in thevelopment in the company’s forestry

Brazilian state of Parana at eachdivision explains the philosophy be-

terrain has been declared a nature re-change of shift, hang high above thehind their plantation management.

serve and may not be converted into

Rio Tibagi. From their large windows,

The woodland area belonging to theplantations, even if the mill’s capacity

the visitor has a unique view of thepaper mill covers almost 90,000 hect-is expanded further in future. A simi-

mill, which was founded in 1946. The

ares in total. This is equivalent tolar situation can be found in thefactory premises are a huge con-

900 km2 and is therefore approxi-

woodlands of another Voith Paper

struction site at the moment as themately the same size as the greater

customer, pulp manufacturer Veracel

capacity of what was already the

Berlin area. However, fewer than

Celulose S.A. Only about half of thelargest paper mill in Brazil is currently

50,000 hectares are planted with

175,000 hectares belonging to thebeing expanded by 1.1 million tons

trees for paper manufacturing. The

company in the south of the Brazilian

per year. Seemingly endless planta-remainder, almost half the forest area,

state Bahia are planted with eucalyp-tions of eucalyptus and pine trees

consists of either natural rainforest or

tus plantations. As with Klabin, theextend behind the mill. On closer

is reforested by Klabin rangers. This

rest is a protected nature reserve.

The dryer of the new board machine in Monte Alegre

25 I 2008 I Voith Paper I twogether

Packaging for detergent is part of the extensive rangeof products manufactured by Klabin

7

REPORT

Dozens of medicinal plants are dried for phytotherapy

Company-grown medicinal

most 60 different plant species fromprimeval forest – which are harvested

plantsthe natural rainforest.

and processed by Klabin staff – areoffered.

While Veracel endeavors to re-estab-After all, Klabin has been studying

lish rainforest that has degenerated

which plants are found in the Atlantic

This pharmacy may be a curiosity,

into pasture land and to create cor-

rainforest, a relative of the primeval

but therapy with medicinal plants isridors for the regeneration of naturalforest of the Amazon, and how theycertainly not. As a member of thefauna in its region, Klabin takes thiscan be used sustainably for almost

Brazilian “Fund for Biodiversity,”

several steps further. Ivone Namikawa

25 years. “Operation Phytotherapy,”

Klabin has pledged to protect the pri-proudly leads the visitor through aan initiative whereby native medicinal

meval forest and to practice sustain-

small storeroom in which an enticing

plants are cultivated and processed

able forestry management. Economic

aroma of spices and medicinal herbs

into medicines and remedies, cameuse of the medicinal plants that are

emanates. Sacks of dried plants with

about from the results of this re-found in the rainforest helps conserve

exotic-sounding names and fragranc-

search. Monte Alegre is probably thethe forest because clear felling would

es that tickle the European visitor’s

only paper mill in the world that also

destroy precisely the ecosystemnose are piled on top of one anotherhas a pharmacy selling these prod-these plants need to thrive. The rem-in stacks up to a meter high. Yet theucts. From stomach tea to aperientsedies manufactured from these plants

qualified botanist can reel off thethrough to beauty creams, healing

are not only sold in the pharmacy tohealth properties of each of the al-

products exclusively from the native

the local community and visitors, but

Medicinal plants and seedlings for the plantations: Klabin’s nurseries are versatile

8

25 I 2008 I Voith Paper I twogether

REPORT

Untouched nature: almost half of Klabin’s properties are left in their natural state

Klabin’s doctors also use them in thecompany, which has an annual sales

the first company in the paper sector

company’s health service, where theyof around € 1.24 billion and 17 paperin South America to have its entire

have now replaced some of themills, subscribes fully to sustainability

forest stand certified by the Forest

conventional medicines. This not only

and assigns an especially broad

Stewardship Council as being man-provides work for the herbalists em-

definition to the term. Sustainability

aged in an environmentally just man-ployed by Klabin, but also lowers theat Klabin rests on three pillars. Apartner, which proves the corporate officecosts for the company’s health insur-

from environmental protection, thein Sao Paulo takes sustainability very

ance plan.

group of enterprises also acts in aseriously.

socially just manner, with a focus on
However, this unique juxtaposition of

economic growth.

plantation management and the delicate use of the natural rainforest and

The company’s ecological orientation

its native medicinal plants is in no

is not only evident in the fact that it

way the only aspect of sustainable

has converted large tracts of land into

management at Klabin. Rather, thenature reserves. In 1998, Klabin was

25 I 2008 I Voith Paper I twogether

9

SERVICE

Vertical screen
Size 20, built in 1967
– New MultiFoil rotor– C-bar screen basket– New screen basket seats– Overhauled bearings– New rubber seals

The Voith Paper Fiber Systems Exchange & Repair Program

Anti-aging treatment for stock preparation machinery
When you need cost-effective, quality solutions for upgrading or
rebuilding your machinery, look no further than Voith.
Our repair centers in Appleton, Wis-

assemblies and complete machines.

consin/USA, Ravensburg/Germany,

We can provide these items accord-

Vaassen/Netherlands and Jakarta/

ing to original equipment manufac-

Indonesia are staffed with competent,

turer (OEM) specifications. Often, wehighly experienced professionals

can also provide a seamless upgrade

committed to partnering with you toto improved technology.

get the most out of your hard-working stock preparation machines.

The Voith aftermarket offering includes completely remanufactured

Ever-tightening budget restrictions,(reconditioned) machines from thephysical space limitations for processcurrent Voith product line, as well as

equipment, greater needs for machin-

Voith legacy products and competi-

ery uptime, and intense competition

tors’ machines.

all propel demand for aftermarket
services to rejuvenate your aging,

The benefits of remanufactured

wearing equipment.

machines from Voith are as follows:

Voith repair centers also specialize in● Guaranteed mechanical reliability

rebuilding customer components,

10

and high product quality.

25 I 2008 I Voith Paper I twogether

SERVICE

Beloit M24 screen
For approach-flow applications– Housing refurbished– Bearings completely overhauled– New energy-saving MultiFoil rotor
and high-efficiency Voith C-bar
screen basket– Old 6-foil rotor– Deflected screenbasket seats– Old-generation
screen basket– Damaged rubber
seals– Heavily worn housing– All bearings in bad
condition– Outdated and inefficientrotor design– Heavily damaged screenbaskets● In many cases fiber and energy

and/or upgrading. Voith reports

stainless steel, a commodity subject

savings as well as greater produc-

findings to the customer before

to volatile pricing and unpredictabletion output.

starting work, and can provide alead times. In remanufactured ma-

replacement machine in the mean-chines, raw materials such as stain-

time.

less steel are typically reutilized. The

What is remanufacturing?

costs involved are mainly for the
Remanufacturing means recondition-

In either case, Voith’s objective is thelabor required to restore an item, anding a worn component or machinesame: to provide customers with asuch costs are not only lower inrather than scrapping it and replacing

machine whose quality rivals. And

general, but also more predictable.

it with a new one. Depending on

it goes without saying that remanu-

customer need and preference, Voith

factured machines from Voith carry

How does the Exchange &offers the following possibilities:

a 12-month mechanical warranty.

Repair Program work

● A remanufactured machine from

In addition to legendary Voith quality,

inventory to replace the existingbacked by a solid warranty, Voith af-

The Voith aftermarket business also

machine, which can be credited intermarket customers also save mon-meets the needs of mills that may

part to the cost.

ey. Because of the high raw materiallack the space or budget — or cannot● Reconditioning of customer’s exist-

cost associated with building a new

afford the downtime — to purchaseing machine at a Voith repair cen-machine, a remanufactured machine

and install new machinery. For mills inter, where it first undergoes a func-

can often be offered at 60 to 70 per-such circumstances, the Voith advan-

tional check to establish the cost-cent of the cost of a new one. Most

tage is clear: the complete “no worry”

effectiveness of remanufacturing

Voith products are fabricated frompackage of the Voith aftermarket pro-for complete machines?

25 I 2008 I Voith Paper I twogether

11

SERVICE

Fiberizer model F2
dumping machine– Housing refurbished– Rotor and bearings
refurbished– Screen plate replaced
according to customer’s
specification

Rejectsorter model RS2B
– Rotor and bearings refurbished– Worn parts replaced– Screen plate replaced according tocustomer’s specification– Heavily worn inner andouter housing surfaces– Damaged rotor foils andscreen plategram includes an exchange system

their prescribed tolerances. The rotor

Since it ran exactly the same way asthat can lend mills a top-notch re-

hub had been damaged during peri-

the machine being remanufactured,placement machine while their exist-

odic reworking by the mill’s mainte-

the machine operators did not needing one is being remanufactured innance team and was also out of toler-

any additional instruction or training.

our repair center. Expensive altera-ance. The foil edges were damaged

tions to process piping and existing

and far outside their design clearance

The customer’s stock of spare parts

foundations are not necessary, be-from the basket face. The screen

could still be used, with full inter-

cause the replacement machine fitsbasket was also damaged. All this ledchangeability among the mill’s several

exactly. As a further service, Voith

to spinning trash, pulsations, exces-

machines of this type.

also offers complete assembly andsive fractionation and thickening,

start-up supervision by our veteranand the associated fiber and energy

How does the Exchange &team of technical professionals.

losses.

Repair Program work

‘Real World’ example of theSince mill production demands left

Exchange and Repair Program

no room for the machine to be out of

The remanufacturing approach wefor complete machinesservice for any appreciable time,offer for complete machines can also

Voith offered an exchange machine

apply to individual components. The

An existing vertical screen, supplied

while the vertical screen was being

complete Voith “no worry” package isto a mill in 1977, experienced theremanufactured. Thanks to carefulcustomized through the exchange

kind of wear and tear one might ex-

checking and planning, it fit the exist-

program to specific customer needs.

pect after three decades. Screen bas-ing piping and foundation layouts

The exchange program is a type ofket seats were deflected outside of

precisely.

service contract through which Voith

for machine components?

1225 I 2008 I Voith Paper I twogether

SERVICE

Centrifilter STC 400
Filtrate screen for black liquor– Housing refurbished– Rotor and bearings refurbished– Screen basket replaced– Protection cover replaced– New double-acting ring seals withnew sealing water monitoring– New corrosion-resistant O-ringsand seals– Heavily worn housing– All bearings in bad
condition– Damaged protection
cover– Damaged rotor– Heavily damaged screenbasket– Rotor andhousing heavily damaged

provides punctual, pre-scheduled de-sion of our global repair center net-

liveries of a machine’s wearing parts.

work for even closer customer sup-After determining the appropriate

port will make anti-aging an increas-exchange cycles, Voith and the cus-

ingly attractive solution for reutilizing

tomer contract for new or remanufac-

existing machinery and components.

tured components on a predictable

We offer remanufactured machinesbasis — an important tool for millsthat are not only mechanically de-that want to control maintenance andpendable, but also meet the most rig-

repair costs, minimize operational

orous process technology and quality

worries and maximize uptime while

requirements. Remanufactured ma-

also reducing their own labor outlay.

chines from Voith also add value forcustomers by always incorporating

Conclusions for the future

the latest design advancements available for each particular product.

Over the last few years Voith repair
centers have successfully remanufac-

The results are improved mechanicaltured numerous complete machinesreliability, often with fiber and energy

and individual components. Voith

savings, outstanding product quality,

offers both the technical expertiseand enhanced production capacity

and industry-leading technologicalfrom case to case.

Contact
Peter Gissel
Fiber Systems Ravensburg
peter.gissel@voith.com

Robert Westrich
Fiber Systems Appleton, USA
robert.westrich@voith.com

advancements that set us apart fromcompetitors. The scheduled expan-

25 I 2008 I Voith Paper I twogether

In other words: anti-aging pays off!

13

REBUILDS

Stock preparation line modernization in a former USSR collective combine: JSC Kiev Cardboard & Paper MillA complete rebuild without any downtime
Voith Paper’s modernization of the multiple stock preparation lines
on KM 1 board machine at JSC Kiev Cardboard & Paper Mill in the
Ukraine was a masterpiece indeed.
This rebuild not only improved paper

century later under the project nameContinuing the plant diagnosis work

quality significantly, but also mini-

Obukhov SP KM 1, Voith Paper Fiberthat started at the tendering stage, amized fiber losses while substantially

Systems would carry out here thedetailed assessment was then carried

reducing energy and freshwater con-biggest stock preparation line rebuildout. The first challenge was how to

sumption at the same time. And par-so far in the former Eastern Bloc.

minimize downtime which is always aticularly pleasant for the customer

problem during rebuild projects. But

was that during the entire rebuild, notWith four board and tissue machines

instead of the several weeks of down-a single day of production time wasplus extensive further processing

time initially forecast, Voith Paper set

lost at the board machine.

lines, JSC Kiev Cardboard & Papera milestone here: the stock prepara-

Mill in Obukhov, about 40 kilometerstion system for the KM 1 board ma-

Back in the eighties, Escher Wyss

south of Kiev, is still Ukraine’s largest

chine was completely rebuilt without

played a key role in building two of

paper mill. In October 2004 Voith

any downtime at all!

the former USSR’s biggest collective

Paper’s long-standing relations withpapermaking combines: in Kiev andthis customer led to the signing of aThis was made possible by a phased

in Leningrad, now called St. Peters-

rebuild contract worth tens of mil-rebuild concept enabling at least twoburg. The scope of supply comprised

lions. During the course of politicalof the four stock preparation lines,

four board machines, each with sev-

turmoil affecting the entire Ukraine, it

whether already rebuilt or not, to stayeral stock preparation lines using

was questionable whether this projectin operation. The partial dismantling,

recovered paper furnish, still quite

would ever be realized, but when thethe incorporation of new machinesunusual in those days. Nobody could

situation became more stable in earlyand equipment and the commission-

have guessed then that a quarter of a2005, the contract finally took effect.

ing of the newly modernised lines had

Charging zone before and after the rebuild

14

View of the deinking lines with
old refiners prior to rebuild

25 I 2008 I Voith Paper I twogether

REBUILDS

Cave Monastery Pecherska
Lavra, Kiev, Ukraine

to be realized while other lines con-but the top layer use secondary fur-tinued their operation.

nish. To ensure optimal utilization ofCustomer Comment
Sergey N. Koval

the furnish used for the under top lay-

Deputy President

All deliveries of process machinery

er, the Voith Fiber Systems Technol-

for recovered paper, conveying sys-

ogy Center in Ravensburg carried out

tems, fiber, rejects and water treat-

flotation trials with recovered paperment, pumps, podiums, walkways,

collected in the Ukraine and Russia.

comprehensive automation and pro-

The performance capabilities of thesecess control systems, field instru-

modernized lines was proven bymentation, erection materials, switch-guarantee trials in which compliance“A Russian proverb says: the first pan-gear and motors, as well as thewith nearly 20 warranty parameterscake is never a good one. But not in thischemical preparation system had to

had to be verified.

case, this one was perfect! For us it was

be coordinated to suit this rebuild

JSC Kiev Cardboard& Paper Mill

fantastic that Voith modernized our plant

concept. Also the process engineer-This rebuild resulted not only in aso successfully while at the same time

ing and automation, erection super-

substantial reduction of energy andupholding full production and customer

vision and commissioning services

freshwater consumption, fiber losses

satisfaction. This project is unparalleled:were coordinated with the same flex-

and rejects volume, but also in signif-

I have never heard of such a successful

ibility.

icantly improved product quality. All

one – it belongs in the Guinness Book of

results of this modernization already

Records!”

The four stock preparation lines serve

exceed expectations at the time offor folding boxboard production. All

writing.

The same view
after rebuild,with new refiners
and additionallyinstalled water
treatment

25 I 2008 I Voith Paper I twogether

Contact
Herbert Gray
Fiber Systems
herbert.gray@voith.com

15

REBUILDS

A custom-made modernization concept

Better quality and increase in production
through ModulePro
Due to the exchange of the roll moisturizer with the ModulePro
nozzle moisturizer, a speed increase of 100 m/min was achieved on
the CM 1 and CM 2 at Koehler Kehl GmbH, Germany. The paper
quality was also significantly improved.

16

25 I 2008 I Voith Paper I twogether

REBUILDS

The paper mill August Koehler AG

These thermo papers are given a

The precoat is applied with a Speed-

can already look back on a 200-year

functional coat that reacts. With theSizer in PM 1 or PM 2. The finish coatcompany history, which testifies toaddition of heat, a physical melting

is applied with a Curtain Coater. The

success and innovation. At theprocess takes place in this function

paper has a curl tendency toward

branch mill that went into operationcoat, through which the black letter-coat side.

in 1988 in Kehl, Germany, today

ing develops.
For curl reduction, until now a roll

known as Koehler Kehl GmbH, thermo papers, carbonless copy papers

The paper mill Koehler Kehl GmbHmoisturizer has been used, which

and resin impregnated papers areranks among the market leaders andtends to vibrate at high speeds. Due

produced on three ultramodern Voith

most experienced producers in theto this, the coating machine is limited

paper machines.

field of carbonless copy papers.

in its speed. In addition, maintenanceDuplicating papers are produced onof the rolls of the moisturizer is very

PM 1 and provided with a further coatcostly and time-consuming. Zonal CD

The productson CM 1. On PM 6 exclusively resin

moisture profiling for improvement ofThermo papers are meanwhile found

impregnated papers have been

the paper quality was not possible.

in all areas of everyday life: as sales

produced since September 2000.
The goals

slips or price labels in the supermarket, as tickets and many other uses.

The challenge
High targets were set for the project,

Thermo papers are produced in Kehl
at Koehler on paper machines PM 1

Duplicating papers and thermo

which were successfully implemented

and PM 2 supplied by Voith and are

papers are upgraded on CM 1, andwith the Voith ModulePro nozzle

upgraded on the coating machines

thermo papers are upgraded onmoisturizer. These were, specifically:

CM 1 and CM 2.

CM 2. For it, this paper is doublecoated on one side.
Paper mill Koehler Kehl GmbH, Germany

25 I 2008 I Voith Paper I twogether

17

REBUILDS

ModulePro C nozzle moisturizer

Customer comment
Georg Streif
Production manager
PM 2 und SM 2
Koehler Kehl GmbH,Germany“On the basis of joint projects on the

Water station for supply of ModulePro C● Curl reduction on CM 1 and CM 2

for CM 2 was December 2006 and forwith the use of a “ModulePro C”

ModulePro C for CM 1 January 2007

nozzle moisturizer even at speeds

followed by installation and start-up.

of over 1,100 m/min (CM 1) and
1,600 m/min (CM 2).
● Increase in overall production forrequirement, a special design, Voith,

CM 2 through a speed increase by

therefore, had just 6 to 7 months left.

more than 100 m/min, which means

The projects were implemented inmatching production to that ofclose cooperation with Koehler Kehl.

PM 2.

existing coating machines at Koehler, a● Improvement in CD moisture profil-

custom-made modernization concept withing by the Profilmatic MP CD profile

regard to curl handling was developed

control with a zone width of 50 mm.

and implemented with the ModulePro.

For the implementation of the project

ModulePro C at coating system CM 2

ModulePro C● Reduction of the service time on
CM 1 and CM 2 (no roll change and

The start-up and optimization, carried out

reduced maintenance work).

in a spirit of partnership, ensured a
picture-perfect start-up. Voith’s scope of

Implementation

supply as well as the two companies’

18

know-how in the field of thermo coating

In May 2006, Koehler Kehl GmbH andpapers have turned our coating machines

Voith agreed on the implementation

into the most productive machines in thisof the project and thus delivery andfield worldwide. The project goals haveinstallation of the ModulePro C for

been fully achieved. Top performance.”

CM 1 and CM 2. Set as delivery date

25 I 2008 I Voith Paper I twogether

REBUILDS

Offline coating machine CM 2

The ModulePro C was integrated intoand CM 2. This substantially boosted

on CM 1 and CM 2. At the same time,

the processes of CM 1 and CM 2, as

the output of the two machines.

the CD moisture profile was improved

requested.

by 20 to 30 percent on both coaters.

The results

But it is not only the increase in oper-

Due to the contactless process, aating speed but also the enhanced

negative impact on the coat applica-quality of the paper that is attribut-tion is avoided.

Through the successful use of theable to the ModulePro nozzle mois-

ModulePro C the operating speed

turizer. In this way it was possible towas increased by 100 m/min on CM 1

reduce the curl tendency in the paper

ModulePro ÒoffÓ

40

55

Curl reduction

20
0
-10

-20
Coating machine CM 1
Thermo papers and duplicating papers“REACTO” 56 - 90 g/m2
Machine speed max. 1,100 m/min
Paper width 4,200 mm
Paper production PM 1

25 I 2008 I Voith Paper I twogether

Contact

ModulePro ÒonÓTime

Optimal range

60
mm

Coating machine CM 2
Paper grade thermo papers 50 - 78 g/m2
Machine speed up to now
max. 1,600 m/min
Paper width 4,200 mm
Paper production PM 2

Thomas Schick
Paper Machines Graphic
thomas.schick@voith.com

Uwe Fetzer
Automation
uwe.fetzer@voith.com

Example: Ideal effect on paper curlby ModulePro moisturizer ongraphic papers

19NEW PLANTS

Start-up of the new PM 21 at Sun Paper in record time

In just 6 hours to salable paper
The Chinese paper producer Sun Paper in Yanzhou, Province
Shandong, achieved a record immediately after start-up of the new
PM 21 from Voith. In just six hours after “Stock on Wire”, the team
were able to produce salable paper at the reel.

20

25 I 2008 I Voith Paper I twogether

NEW PLANTS

SpeedSizer

Since start-up, 700 metric tons of

raptures about it. It was not until theday. In the first weeks after start-up

woodfree-coated base papers, but

end of September 2006 that the in-we even had several production days

also offset or copy papers are pro-stallation of PM 21 in Yanzhou start-

without sheet breaks. Therefore, out-

duced on PM 21 every day.

ed. Only six months had passed until

standing machine availability andthe start-up at the beginning of April

excellent runnability were achieved,”

Praise has come from all sides about

2007. Since then, PM 21 has been

according to Joachim Gütler. Verifica-

the good cooperation with this proj-

producing paper in continuous opera-tion of the warranties was carried out

ect, both from the Production Man-

tion without any major downtime.

with success as early as in July, justager at Sun Paper, Hu Qiao Zhong

3 months after start-up. The quality

and from Dr. Martin Zimmermann,

It was not only the start-up of the ma-of the paper produced was at a very

Voith Paper’s Chief Start-up Engineer.

chine itself, but also the development

high level. After such a short time the“We were a strong team. We workedof machine availability, the runnability

paper machine could be operated

out a detailed plan and pursued only

and the production rate that are im-constantly at high production with

one goal: to start up PM 21 as earlypressive. In the first two months after

very good quality – a magnificent

as possible to give Sun Paper a newstart-up the machine speed wasresult.

impetus to grow,” reports Dr. Zimmer-

already brought up to 1,250 m/min, atmann.

a basis weight of 80 g/m2. WithThe first-class start-up of the ma-heavier paper grades a daily output

chine is certainly also based on the“We have also fully achieved this.

of 900 metric tons was also achieved.

fact that machine and machine

The 6-hour record has even topped a“Particularly pleasing for the user isclothing come from a single source.

great performance,” Voith’s Project

that, on average, the machine has

Voith Paper Fabrics was integrated

Manager Joachim Gütler went into

approximately only one sheet break a

into the project at an early stage andDevelopment of machine availability andrunnability in the first quarter after start-up

Average number of sheet breaks andbreak time in the first quarter after start-up

25 I 2008 I Voith Paper I twogether) % % &    
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21

NEW PLANTS

supplied the complete machine cloth-

ideal press concept. A closed web

System. Finally, the MasterReel also

ing for trouble-free start-up: 3-ply

run through the entire press section inensures faultless winding for surface-

PrintForm SSB fabrics, PrintFlex press

conjunction with high drynesses issensitive papers with parent roll

felts and PrintTech dryer fabrics.

the basis for good runnability. The

diameters in excess of 3 meters.

two NipcoFlex presses, however, also
PM 21 is the first order for Voith Paper

ensure a very equal-sided base pa-

Project Manager Joachim Gütler isfrom the growing Chinese paper pro-per. In conjunction with the soft-nip

confident that the trouble-free start-

ducer, Sun Paper. The paper machinecalender, a roughness two-sidedness

up of PM 21 achieved in record time

has a wire width of 5,400 mm and aof less than 10 % is achieved on theat Sun Paper is advantageous fordesign speed of 1,300 m/min. Sun

finished paper.

possible follow-up projects. “Sun

Paper was convinced of the One

Paper is an important customer for

Platform Concept from Voith Paper

The TopDuoRun pre-dryer section isus, who produces very high-quality

right from the start and, therefore,

the appropriate concept for maximum

papers and whose growth potentials

decided to award this order to Voith.

production speeds. It consists com-have not yet been fully utilized.”

pletely of single-tier dryer groups with

But also other customers, principally

The scope of supply includes a

top dryers. The SpeedSizer AT appli-in India and China, are convinced ofMasterJet F headbox with the provencator ensures a uniform application ofthis concept. In the meantime, other,

ModuleJet dilution water system forthe film during surface sizing. The

similar machines have been sold.

the generation of excellent CD basis

after-dryer section with Airturn as wellweight profiles with variation coeffi-

as the single and two-tier dryer group

cients below 0.4 %. A DuoFormer D

is responsible for a reliable web run

ensures not only high drainage ca-

and efficient drying before calender-

pacities but also excellent formation

ing. An EcoSoft calender with Nipco-with Ambertec values of less thanrect roll is used for the latter. The

0.4 √g/m2. For such fast and efficient

34 zones across the machine widthmachines, the Tandem NipcoFlex

ensure a uniform CD caliper profile

press section with transfer belt is thethanks to the Profilmatic Control

EcoSoft Calender22

Contact
Joachim Gütler
Paper Machines Graphic
joachim.guetler@voith.com

MasterReel

25 I 2008 I Voith Paper I twogether

PRODUCTS

Maximum performance due to stability and wear resistanceNew grooved stainless steel roll cover – G-Flex
To supplement its already very comprehensive portfolio of possibleroll covers, Voith Paper has developed a grooved stainless steel rollcover – G-Flex. G-Flex provides for stable drainage and together
with the extremely high wear resistance this results in long running
time intervals and high economic efficiency.
Voith Paper sees itself as a process

The new G-Flex roll cover can beteeing stable drainage. In addition,and system provider for the paper in-

used on crown-controlled rolls, press

there is the high wear resistance of

dustry. In order to optimize the per-rolls with multi-nip zone control, such

the G-Flex cover. These two advan-

formance of the press section, along

as NipcoF, solid press rolls or backing

tages guarantee long running-time in-with high-performance functional rolls,

rolls of shoe presses, such as thetervals and high economic efficiency.

such as in the NipcoFlex shoe press,

NipcoP roll. The use of G-Flex is notthere are also fabrics specially coor-

limited to just Voith Paper press rolls,

Within a short time, Voith Paper has

dinated to the grade and the drainage

but can also be used on press rolls ofreceived a considerable number ofrate. Another essential component ofother manufacturers.

orders for various reference machineswith DuoCentri, Single or Tandem

optimization is also, of course, theselection of suitable roll covers.

Due to the high wear resistance ofNipcoFlex press sections. This shows

G-Flex, long grinding intervals forthe flexibility of this roll cover, which

The G-Flex cover is manufactured by

optimizing the efficiency of a paper

can be used for practically all press

winding a molded stainless steel wiremachine can be assured. At the same

concepts.

onto a roll shell under great tension

time, there is maximum resistanceand contact forces. The wound

regarding doctoring and high pres-square wire is produced with highsure spray pipes and resistance

precision by means of cold rolls and,against all chemicals used in thedue to its material composition, has

paper production process. Optionally,

excellent corrosion resistance.

the wear resistance can be increased

Through this one obtains a grooved

even further by applying a CeraVentroll cover with very high dimensional

hard metal cover.

stability and the highest wear resistance. This press roll cover meets the

The main advantage of the G-Flex

requirements of the most demanding

cover is the retention of its storage

press positions with the highest

volume and its open area even withdynamic loads.

the highest linear loads, thus guaran-

25 I 2008 I Voith Paper I twogether

Contact
Thomas Augscheller
Paper Machines Graphic
thomas.augscheller@voith.com

Harald Aufrecht
Paper Machines Graphic
harald.aufrecht@voith.com

23

PRODUCTS

600

22North America
86

66
Western Europe
without
Nordics
70

49
South America
39

500
8

40

Eastern Europe
54

China
100
20

400
27
Japan
24

Headboxes

10
Nordics
22

Asia
without China/Japan

3
Africa
10

Total
300
200
Total ModuleJet

173
100
4
Oceania6

Voith
Competitors

94/95
Voith headbox market share since 2001

96/97

98/99

00/01

02/03

04/05

Voith headbox installations with and without ModuleJet

Improved paper quality through the adapted headbox

MasterJet II – for super sheet formation
Among all the factors influencing paper quality, the headbox plays
a key role. State of the art in this connection is the MasterJet II
headbox family, which incorporates not only decades of papermaking experience and technological know-how, but also the latest
findings both in research and practice.

MasterJet II F/B

24

06/07

In 1994 Voith revolutionized headbox

ModuleJet concept was soon adopt-technology by introducing the Mod-ed throughout the paper industry.

uleJet dilution system. This innovative

Over the last 13 years it has beentechnology markedly improved paper

applied to more than 300 headboxes,

quality in terms of basis weight profile

including over 40 headbox rebuilds.

and fiber orientation, also resulting in

During the same time period Voithsmoother operation, greater produc-

has sold more than 500 headboxes

tion output and fewer web breaks.

in total, thereby upholding its posi-

Thanks to this and its reliability, thetioning as market leader in this field:

MasterJet II G

MasterJet II F

MasterJet II M2

25 I 2008 I Voith Paper I twogether

PRODUCTS

our market research findings show a● Pulsation damping:

Apart from new headboxes, rebuilds

global market share of 26% for Voith

A buffer tank with damping plateof existing headboxes are increasing-headboxes. This remarkably highand air cushion efficiently smooths

ly in demand. It has been possible

market share, considering the largeout any pulsations emanating fromever since 1995 to upgrade Voith

number of competitors, is due not

the approach flow section.

headboxes with ModuleJet dilution

least to the fact that Voith can supply
exactly the right headbox for practically every application.

technology. Since 2004 a special ver● Cross distribution:

sion is available for other makes ofA cross flow header with optimized

headbox: the ModuleJet DR (Dilution

parabolic geometry ensures con-Retrofit). In this version the dilution

Currently the Voith headbox family

stant static pressure over the entire

medium is fed through a dosing plate

mainly comprises the MasterJet IImachine width.

between the back of the headbox and

F/B, F, G and M2 versions. These
cover fourdrinier, hybrid and Gap-

the existing header.
● Consistency control:

Former applications at speeds ofModuleJet modules regulate theThis ModuleJet version was installed

70 to 2,200 m/min over a wide range

stock consistency for efficient basisvery successfully on SymFlo head-of basis weights and stock composi-

weight profile correction.

boxes in Ettringen and Rauma.

tions. The specific stock flow rates
range accordingly from 1,500 to

Further installations will follow shortly● Turbulence generation:

on Tampella and Beloit headboxes.

38,000 l/min/m, thus making it very

The MasterJet II tube bank gener-

difficult to cover the entire application

ates optimal turbulence thanks to

Installing an EdgeMaster is a small

range with a single headbox concept.

its square outflow cross-section,but often decisive step toward im-

The MasterJet product line is how-

optimized flow steps and inter-

proving sheet edge quality. By ensur-

ever the perfect solution for practi-changeable inflow inserts.

ing clean suspension on the wire

cally all applications, except in a few
cases where a special design is re-edges, this sealing strip with adjust● Jet formation and trajectory:

quired, such as the RollJet rectifier

The optimized nozzle, lamellas,roll headbox for cigarette paper orslice blade and bottom lip ensure

greaseproof papers.

perfect jet quality.

able geometry effectively preventsedge wave formation.
In summary, the Voith MasterJet
meets the highest demands with re-

The MasterJet II headbox is distin-● Maintenance friendliness:gard to hydraulic concept, adjustabil-guished by its flexibility, dependability

The stilling chamber and the nozzle

ity, user friendliness and maintenanceand extremely high quality results,

can be opened over the entire

access. It also sets benchmarks indue also to additional featuresmachine width to enable optimal

materials selection, manufacturing

including:maintenance access.

precision and surface quality.

ModuleJet DR

Improves sheet edge quality: EdgeMasterContact
Ole Hansen
Paper Machines Graphic
ole.hansen@voith.com

25 I 2008 I Voith Paper I twogether

25

PRODUCTS

Guarantees troublefree operation and reduces the necessary maintenance

DuoCleaner Express – innovative dryer fabric cleaning
The DuoCleaner Express meets all demands for highly efficientcleaning of dryer fabrics. Due to a continuous cleaning of machine
clothing a reliable production process can be guaranteed.
Today’s high-tech paper machines

An important role is played here by

can reach speeds of 2,000 m/min andpaper machine fabrics, which have tosometimes even more. For sustain-

keep up optimal performance for as

ably optimal productivity under suchlong as possible during operation.

conditions, close tolerances and fine-

A good way to ensure this is by con-tuning for constant operating param-tinuous fabric cleaning, where Voith

eters are indispensable.

DuoCleaner technology is the established leader.

26

25 I 2008 I Voith Paper I twogether

PRODUCTS

The Voith DuoCleaner with its rotary

The result is less maintenance effort

head continuously cleans the fabricand better cleaning at the same time.

during operation. The success of thistechnology is shown by the fact that

The latest Voith DuoCleaner – the Duo-more than 800 DuoCleaners are now

Cleaner Express – is now the best

installed worldwide. By adjusting thesolution for continuously cleaning

operating parameters accordingly,

conventional dryer fabrics. Instead of

at working pressures of 200-350 bar

using cleaning heads, it has a newly

various fabric cleaning tasks can be

designed cleaning boot. Cleaning

performed in the wet and dryer

takes place on the side in contact

sections of paper, board and tissue

with the paper, which is where the dirt

machines.

collects, in step-by-step mode.
In other words, the cleaning bootDuoCleaner Express in operation

Dryer fabric permeability is very im-remains stationary at one point overportant for paper quality and produc-

the dryer fabric until the latter hastion efficiency. Dirt deposits on therevolved a certain number of times.

fabric reduce the permeability, which

Then the boot changes position mov-in turn reduces heat transfer in thising by its working width lateral to thearea. This naturally leads to poor

dryer fabric. After cleaning the entire

drying performance, tail transfer

fabric width in numerous steps, theproblems, bad moisture profiles andDuoCleaner Express travels at highhigh steam consumption. That is why

speed to the other side of the ma-dryer fabrics have to be changed sochine for dirt removal at a cleaning

early – not because of wear and tear,station. Then the cycle starts overbut simply because they are no lon-

again, either immediately, or after ager permeable enough.

predetermined pause.

Particularly in the case of forming

The new cleaning boot on the Duo-fabrics and press fabrics, the rotating

Cleaner Express uses a cleaningwater spray nozzles on the Duo-block with several fixed nozzles spray-

Cleaner head are extremely important

ing the fabric at an angle for efficientbecause they enable correct adjust-dirt removal. By impinging obliquely,

ment of the local cleaning duration

the water is tossed together with dirt

and intensity. In the dryer section,

particles into the cleaning boot’s

however, there is a risk of nozzle

drainage duct.

rotation being impeded or blocked by

25 I 2008 I Voith Paper I twogether

infiltrating dirt and by dry out of the

Vacuum is generated at the beginninghydrostatic ceramic bearings. Sinceof the drainage duct by a water jet in-access to the cleaning heads is notjector in the cleaning boot. The resul-

always possible during production,tant suction ensures efficient removal

the DuoCleaner principle was furtherof the dirty water. A small part of thedeveloped for use with dryer fabrics.

cleaning spray water penetrates the27

PRODUCTS

fabric, and in case of heavy contami-tion upholds optimal efficiency.

Cleaner Express is usually no prob-

nation it can be collected in a troughThis is reflected not only in better

lem at all, because both systems

underneath. Following the cleaning

paper quality, but also in fewer web

have comparable operating param-boot is an air knife for removing

breaks and lower drying energy

eters and largely compatible com-

residual water from the fabric. This

consumption.

ponents.

stripes and prevents loose dirt par-Stable running at high operating

Important DuoCleaner Express

ticles from being carried along. The

speeds with a minimum of breaks isreferences include the installations

suction drainage duct is usuallyeven better guaranteed with well-at Palm Wörth and UPM Schwedt,

connected via a separator to theproven web stabilizers like Pro-

where other type of products were

paper machine vacuum system

Release, and with clean dryer fabrics

replaced successfully, followed byfor dependable removal of dirt andwith the correct permeability. Produc-

supplemental orders.

water.

tivity is increased thereby, and paper

eliminates the problem of water

quality will always be better.
The highly effective DuoCleaner
Express system with fixed cleaning

The Voith DuoCleaner Express withnozzles ensures troublefree operation

its new operating principle meets allin the tough environment of the dryer

demands for highly efficient cleaning

section, and requires considerablyof dryer fabrics as well as simplified

less maintenance than conventional

maintenance.

Contact
Karlheinz Straub
Paper Machines Graphic
karlheinz.straub@voith.com

DuoCleaners with rotary cleaninghead.

Also for retrofitting and upgrading
existing cleaning systems, the Duo-In summary, both on modern paper

Cleaner Express offers a very goodmachines and older ones, efficient

return on investment. Upgrading adryer fabric cleaning during produc-conventional DuoCleaner to Duo-

Maria Dröscher
Paper Machines
Board and Packaging
maria.droescher @voith.com

Comparison between DuoCleaner and DuoCleaner Express

28

25 I 2008 I Voith Paper I twogether

PRODUCTS

Stable grade changes on the PM 6 at Stora Enso Maxau

800 tons more paper thanks to OnQ GradeManager
How can you change from one paper grade to another without
producing broke in the transition phase? Every papermaker
concerns themselves with this question. The OnQ GradeManager
by Voith Paper Automation offers a solution. It ensures a smooth
grade change and therefore less production loss.

25 I 2008 I Voith Paper I twogether

29

PRODUCTS

Based on Voith’s in-depth process
knowledge, OnQ GradeManager coordinates the quality controls on the PM 6
during a grade change and therefore
brings about a huge reduction in broke.

All around the world, paper machine

entire manufacturing process during

The OnQ GradeManager therefore

operators are looking for ways andthe critical phase of a grade change.

monitors the paper quality during ameans in which to increase the added

Practical experience shows that bygrade change by essentially control-

value of their plants. However, theusing the OnQ GradeManager, grade

ling three components:

investments needed are usually onlychanges on the PM 6 are more stable● firstly, the stockflow into the shortpossible if guaranteed profitability is

and 800 tons more paper can beensured. Voith Paper therefore set

produced annually. This translates toitself a goal of helping paper manu-

an increase in turnover of aroundfacturers improve their existing plants€ 500,000 per year.

in three fundamental aspects with thecircuit to maintain the basis weight,● secondly, the steam pressure in thedryer section for constant moisture● and finally, the addition of fillers forthe ash content in the paper.

aid of reliable automation products:

The fact that several minutes normal-● to increase added value across thely pass before production is back to

Based on the paper machine’s oper-

within the quality specifications high-ating point in production and the newlights the challenge that is faced in a

grade to be produced, OnQ Grade-stable grade change. The result is

Manager calculates accurate target

clear: the paper produced in this timevalues for stockflow, steam pressure

does not have the same quality as

and the addition of fillers. It also pre-that produced under stable produc-sets when and how the three values

tion conditions and, therefore, either

are changed in the course of thecannot be sold or cannot be sold forgrade change so the new grade canUsing the latest multivariable control

the same price. However, a modern

start as quickly as possible with themethods, the OnQ GradeManager

paper machine produces more thangreatest process stability.

which has already been implemented

10,000 m2 paper per minute, which

and tested on the PM 6 at Stora Ensomeans the resulting production loss

Niels Hardt, product manager at Voith

Maxau, Germany, coordinates theis considerable.

Paper Automation, makes a compari-

entire plant,● in order to reduce the energy
consumption required● and to reduce the costs for the useof raw materials.
Stable, quick change

30

25 I 2008 I Voith Paper I twogether

PRODUCTS

54
51

Basis weight
Dry weight48

21.500Through model-based steam pressureadjustment, OnQ GradeManager
makes quick grade change times
possible in Maxau (here 3 minutes),
while maintaining constant moisture.
Production loss during a change istherefore reduced to a minimum.

Moisture [%]Stock flow

20.50019.500

6
5
4

Moisture
Steam pressure

Model based
steam control

150
125
100

Steam pressure [kPa] Stock flow [l/min]

Weight [g/m2]

3 min
57

son with a navigation system. “There

Due to the general trend in the paper

I also choose my destination. The

industry towards smaller and smaller

program then leads me according tobatches, Stora Enso Maxau will

my preferences via either the quick-increase the number of grade chang-

est or the shortest route.”

es in future too, which means thesavings and therefore also the added

Stora Enso profits fromvalue of the plant can increase evenless broke

more.

Around 260,000 tons of SC/B paper
Using data taken by the scanner, OnQ
GradeManager monitors the grade change
for the paper web’s basis weight, moistureand ash content.

are produced annually on the PM 6 inMaxau. On average, 20 grade changes are made per month, during whichbroke has been reduced drasticallythanks to OnQ GradeManager.

Contact“After optimizing the grade change,
an average of 9,000 m less brokeis produced per change,” explains

Niels Hardt
Automation
niels.hardt@voith.com

Michael Wehr, who is in Maxau
responsible for the quality control
system of the PM 6. On an annual
basis, this means additional produc-

Rudolf Münch
Automation
rudolf.muench@voith.com

tion to the value of € 500,000.

25 I 2008 I Voith Paper I twogether

31

REBUILDS

The quality of the new product has also
convinced APP Ningbo’s customers

The first DynaCoat C in China becomes operational

APP Ningbo BM 2 moves into art board production
Producing top market quality art board is no easy task, but by nomeans impossible when one has the right equipment. Voith Paper
took less than ten days to convert the Ningbo BM 2 for the
production of both ivory and art board and thus continue a Chinese
success story.

32

25 I 2008 I Voith Paper I twogether

REBUILDSAPP Ningbo Zhonghua Paper Co.

weight range of 210 - 400 g/m2.

Ltd., which has its headquarters in

A maximum operating speed of

Duantang, Ningbo, in the province ofaround 550 m/min is available, while

Zhejiang, mainly produces high-the design speed of the new parts

quality types of board on three ma-amounts to 650 m/min. The machine

chines. With production in excess of

was originally built in 1994.

500,000 t/y, APP Ningbo is one ofChina’s largest board manufacturers.

Coating gets a boost

One of the main reasons for the mod-The brand new DynaCoat C rein-

ifications to the BM 2 was the desire

forced three Combiblade coating

for an increase in production capac-

units. It was installed in the second

ity. However, not just quantity, but

position and will be used for prelimi-

quality was also a critical factor.

nary, reverse side coating.

Moreover, APP Ningbo was looking to

DynaCoat represents the latest gen-extend its product range from ivory

eration of Voith Paper coating units.

board to include art board. This

Following Voith Paper’s takeover ofshould display symmetry, as well as

the Jagenberg company, there was

uniform smoothness and gloss onan overlap in the companies’ portfo-

both sides. In order to attain theselios and therefore a modular coating

objectives, an additional DynaCoat C

system with the name DynaCoat wasunit was added to the coating

developed from various other units.

machine.
Coating experts from both Germany
The BM 2 is a four-ply, fourdrinier ma-

and Austria were involved in the de-chine with a wire width of 4,300 mm

velopment work, which was complet-and produces boards in a basis

ed in around six months of intensive

The DynaCoat C, IR-dryer and
HCB-Turn can be installed in very
limited space

APP Ningbo has its headquartersin Duantang

25 I 2008 I Voith Paper I twogether

33

REBUILDS

activity. The proven characteristics ofdue to faster, more reliable move-

APP Ningbo is the first name on the

the CombiBlade such as the position-

ments and optimum access. New

DynaCoat C reference list for board

ing of the framing, the emptying of

hydraulics make maintenance easier

grades, but in the meantime a second

the color return pan and practical ac-

to complete and the appearance isunit has been put into operation incess were all retained and combined

cleaner.”

Spain. Furthermore, the DynaCoat AT
also has a number of references.

with other successful, existing functions, e.g. the hydraulic movements

The first, but not the last

Voith Paper project engineer, Kurt
Eichinger, “It was not an easy deci-

used in Voith Paper coating units. Another interesting feature is formed by

The DynaCoat C (C stand for Com-

sion for the customer to be the first

the rolls, which can be reused in casepact) is the baby brother in the coat-

one to utilize this unit, but the trustof a redesign of the CombiBlade.

ing unit family. At present, it can be

has paid off. The BM 2 is running

used for paper machines with widths

smoothly and APP is completely sat-Moreover, extended plant pre-assem-of up to 6,000 mm and maximum

isfied, as all targets have either been

bly means that the new DynaCoat C

speeds of 800 m/min. The larger

met or surpassed.”offers short upgrading times. The unit

DynaCoat AT (Advanced Technology)

also requires less space than compa-

version is used for wider and fasterrable equipment and its modular

paper machines and both DynaCoats

design facilitates simple conversion.

are suitable for all types of coated

Apart from DynaCoat C, other com-papers and boards.

ponents such as infrared dryers,

Other modifications to the BM 2

HCB-Turn resp. hot air dryer have

Design and development engineer ofVoith Paper, Roland Scheiflinger,

APP Ningbo runs the coater in blade

been added to the coating machine.

describes the most important unit im-

operation, although conversion to rod

The HCB-Turn is a device, which canprovements as follows, “In a nutshell,

operation is possible if so required.

turn and dry the paper at the same

DynaCoat C simply offers higher

The standard DynaCoat C is fitted

time and is thus ideal in the case of

performance than previous units. It

with coating rolls, but for machine

upgrades in very limited space.

should be noted that the control func-

speeds in excess of 800 m/min, a jet

Accordingly, this Voith Paper Krieger

tions have been optimised and thecoating system or a JetFlow F can beunit is in great market demand.

unit offers a higher safety standard

used.

Ningbo now operates four coaters
and can, therefore, produce first classart board34

25 I 2008 I Voith Paper I twogether

REBUILDS

The market demands top quality
Lin Xiao Zhen, the head of theMaintenance & Engineering Division,
was in charge of the rebuild project
twogether: A few months haveexcellent cooperation with Voith

twogether: What customer feedback

passed since the completion of thePaper. We really did feel in safe hands

have you received?

BM 2 rebuild. When you consider thethe whole time and above all, during

project as a whole, which activity

the intensive conversion work phase,

Lin Xiao Zhen: A thoroughly positive

stands out most in your mind?

we appreciated the first class service

response. All the market requirements

provided. We have benefited fromhave been met and we have attained our

Lin Xiao Zhen: “We are very happy

Voith Paper’s clear instructions

quality objectives. Our markets demandwith the rebuild, for which we only

regarding the installation and start-up

top quality board. With the upgrading

had to shut down the machine for aof the new components, for as aof the BM 2, we have consolidated ourshort period. During the entire project

result, commissioning was completed

position as the quality leader in the ivory

completion process, we enjoyed thewithout a hitch.

and art board production segment.

Voith Paper also supplied otherposition enhances base board

Art board now constitutes 50% ofcomponents to Ningbo for qualitysmoothness.

BM 2 output. Many of Ningbo’s cus-enhancement purposes. Two MSA

tomers are located in China, but thescreens were added to the approach

Last, but by no means least, thecompany exports around the world.

flow system for the middle ply, one

scope of deliveries from Voith Paper

This means that board from Ningbo

for the first screening stage and theincluded a comprehensive automa-

can be found everywhere fromother for the dilution water line.

tion package. This consists of theEurope, the Middle East and Asia to

Both are fitted with slotted C-bar

OnControl process control system

the USA and Canada. Therefore,

screen baskets and in order to opti-

with hard- and software based on thewhen reading high-quality glossy bro-mize the cross-directional basis

PCS7 standard for the coater, infrared

chures, it is worth remembering thatweight profile, the existing middle

dryers and HCB-Turn.

the cover could come from Ningbo.

ply headbox was supplemented byModuleJet dilution technology with

The rebuild of the board machine wasProfilmatic M-control.

completed in minimum time. Following a short shutdown of less than ten

A DuoShake shaking unit improves

days in May 2007, APP Ningbo wasformation and the MD/CD ratio of theable to start art board production onbase board. Furthermore, the BM 2

schedule. For a project of these

also received various dewatering

dimensions, this was very tight time-units and an offset press in the fourthscale.

25 I 2008 I Voith Paper I twogether

Contact
Stéphane Francin
Paper Machines
Board and Packaging
stephane.francin@voith.com

35

NEW PLANTS

The 1st tambour was woundedon 30 March, 2007

Yuen Foong Yu has China’s first PerfectFit paper machineYFY steps up Chinese testliner production
Are you looking for environment-friendly containers for Frenchfries, solid board for children’s books, or wedding cards with thesheen of mother-of-pearl? Or how about some tissue or testliner?
Whatever is required, one can count on YFY Paper, which with a
new paper machine, is now providing the Asian market with
280,000 t of packaging papers yearly.

36

Yuen Foong Yu Paper Manufacturing

paper business as early as the end of

Co. Ltd. in Taiwan is a very versatile

1930’s and was the first company topaper maker. Founded in 1926, thestart paper R&D in greater China. In

company can look back on a long tra-the meantime, it has three businessdition of paper production in Taiwan,

units comprised of fine paper & board,

China and Vietnam. YFY entered thehousehold papers and industrial

25 I 2008 I Voith Paper I twogether

NEW PLANTS

The paper mill of Yuen Foong Yu
Paper Manufacturing Co. Ltd. inYangzhou, province Jiangsu, China

papers. As a consequence, the com-

In the press section, two stand-alone

A SpeedSizer unit provides uniform

pany offers a huge product range.

presses guarantee the highest dry-film application and the machine

Today, YFY is the largest producer

ness levels at maximum bulk. The

concept is rounded off by an EcoCalof testliner and fluting in Taiwan andconfiguration consists of a jumbo rollcalender and a MasterReel. Parent

operates a total of 17 different paper

press in the first position and a Nipco-rolls of up to 3 m diameter can bemills.

Flex shoe press in the second. This

wound without quality losses.

combination not only ensures effiIn addition, another two paper mills

cient drainage, but also minimum

In form for the futurefrom a joint venture with the Vietnam-

volume reduction.

with PerfectFit

The entire pre-dryer section and

The PerfectFit concept played a ma-

after-dryer section are of double-tier

jor role throughout the PM 2 project.

design. The only exception is the first

The central idea behind this conceptgroup, which is single-tier. Voith

is the definition of the “nice to haves”

YFY’s newest paper machine started

Paper had the objective of combining

and essential equipment.

production in the Chinese province ofthe most effective drying with the

Jiangsu at the end of March 2007.

best possible runnability.

ese government are scheduled to join
the group in the near future.
High quality on 3-plys

The PM 2 mostly produces high quality testliner in the basis weight rangeof 125 - 280 g/m2. Furthermore, theproduct portfolio includes lightweight
corrugating medium grades and kraft
liner.

Wet end andbeginning of thepress section
before ...

As is frequently the case with highquality testliner machines, the designof the PM 2 includes three fourdrinier
wires for the maximum utilization offiber potential. The paper machine
has a wire width of 5,360 mm andhas been designed for a maximum
production capacity of 900 t/d. The
design speed is 800 m/min.

25 I 2008 I Voith Paper I twogether

37

NEW PLANTS... and four months
later

A comparison with cars provides an

Another example is provided by the

Chia-Feng Yeh, the customer’s

excellent analogy. Trips in cities on

SpeedSizer, which is currently usedproject engineering manager, is veryasphalted roads do not demand afor single-sided starch application,

happy with the results, “The PM 2

four-wheel drive pick-up with a cow

but can also be simply adapted foris a good machine with good engi-

catcher, a winch and three extra pairs

double-sided application.

neering.”heavy urban traffic, air conditioning,

In addition to fundamental decisions,YFY has already been running its

a navigation system and parking sen-the PerfectFit checklist also con-entire product range and has reachedsors are more important. The same

tained detail questions. One of thethe planned maximum production

logic applies in the case of paper

decisions was e.g. if the combination

capacity. This status was attainedmachines designed according to theof a jumbo roll press and single shoejust five months after start-up. The

PerfectFit concept.

press would suffice – meaning that a

quality of paper is stable and thetandem shoe press was not required.

mostly Chinese end users are also

An intelligent configuration, i.e. not

The response in the case of the YFYsatisfied.

everything was selected that would

PM 2 was positive. Moreover, thehave been possible, was determined

need for the oscillation for every sin-on the basis of a long checklist. Thisgle shower was also discussed.

of lights on the roof. Conversely, in

was prepared in conjunction with thecustomer and made no compromises

No compromises with regard

with regard to performance and qual-

to performanceity. The customer objective of making
sure that the PM 2 could match future

The omission of some components inneeds took center stage in this equip-

the case of the PM 2 clearly did not

ment selection and for example, themean sacrificing the best possible

MasterJet II F/B headbox on the backrunnability. For example, Fibron con-ply can be upgraded with a Module-

veyors were chosen for the tail trans-

Jet dilution control system.

fer instead of the usual ropes.

38

Contact
Franz Fischer
Paper Machines
Board and Packaging
f.fischer@voith.com

25 I 2008 I Voith Paper I twogether

REBUILDS

A special challenge – the Fors rebuild

The 8 mm success factor
The Fors BM 2 machine rebuild presented the team from Voith
Paper and Stora Enso with a daunting challenge. Working withmillimeter accuracy was required and provided in masterly fashion.
Located in the heart of Sweden, Fors

As a leading supplier of premium

improved cost efficiency and greater

is a globally respected board mill,boards, Stora Enso defined the

production range flexibility.

which produces coated FBB in a

success of the machine rebuild asgrammage range of 180 - 400 g/m2.

depending upon three factors.

This is used as packaging for ciga-

To achieve these goals two old headboxes were updated with MasterJet II

rettes, chocolate, confectionary,

These consisted of increased productF/B and the approach flow received

frozen food and luxury products.

quality from their three-ply BM 2,

three new screens. Due to the very
low basement height, two Voith
Finckh screens had to be installed

Board of first-class quality has been produced within shortest time

horizontally, which made the work
considerably more difficult. The
scope of delivery also encompassed
the related pumps, a suction couchroll, a Hydromix mixing collecting
pipe, detail engineering and installation.
Tight spots for tried andtested teams
When the BM 2 was originally conceived in the early sixties, the designers did not give much thought tofuture rebuilds. As in many othermills, both the basement and themachine hall are very low. Therefore,
the question was how could one
disassemble the old machinery andinstall new systems when simply no
space was available?
The biggest obstacle was clearly
posed by the back ply headbox.
This was located in the very centerof the wire section, underneath the
middle ply with the white water tray
and a machine beam. At the back25 I 2008 I Voith Paper I twogether

39

REBUILDS

The installation of the back ply headbox was a real challenge

The new headbox under working conditions

was a concrete wall and the machine

thriller! I think that some people did

ed, the rebuild was completed duringpiping.

not really believe that we could fit thea 9-day shutdown. The BM 2 started

headbox until they saw it happen for

up on January 2, 2007 and immedi-

A tape measure is needed in every

themselves.” As far as his contact

ately provided saleable board quality.

rebuild, but in the case of Fors BM 2

partners from the customer side areit was employed intensively. The

concerned, he has nothing but praise,crews were not only looking for every“Both the project manager and his

half-meter or centimeter. In fact,

team were highly professional andHowever, this did not mean that the

everything came down to just 8 milli-

cooperative.”rebuild was finished. The upgraded

Soft covers, hard facts

BM 2 needs a new winder that could

meters.
The Fors headboxes are not of spe-be used at higher speeds. The Vari-

These problematic circumstances

cial design, but are standard F/B

Flex M two-drum winder has a maxi-presented the Voith Paper crew withunits. Due to their compactness, themum speed of 2,500 m/min and also

some really spine-chilling moments.

passage behind the headbox is now

offers top winding quality, and it was

Helmut Eigner, the installation fore-

wider, which makes cleaning easier.

these characteristics that persuadedman, will certainly never forget thisA larger headbox would have caused

Stora Enso.

rebuild.

enormous problems and demanded
the removal of the middle ply white

In general, coated board constitutes“It was a huge technical challenge.

water tray. This would have pro-a considerable winding problem andWhether above, below, left, or right,

longed the rebuild by three or fourin the past, the steel drums caused

there was no free space anywhere.

days. However, no adaptation work

numerous headaches, among which

When we shifted the back ply head-

was needed and this is certainly one

markings, shiny spots and loss of bulk

box into the machine, we had exactlyof the major benefits provided bywere the most frequent. Moreover,

8 mm of headroom. I couldn’t even

Voith Paper.

the limitation on the maximum winding diameter was no less important.

squeeze my little finger into the gap.”
Not only was there no room to spare
Helmut Eigner has been installing

for the back ply headbox, but also for

In particular, the shiny spots resulting

paper machines for 15 years, but

the top ply headbox and the PD

from layer shifting during winding had

Fors was his toughest task yet. As hetanks. Nevertheless, in spite of every

to be avoided and reduced to a mini-

explains with a smile, “It was a real

event, both expected and unexpect-mum in order to maintain top quality

40

25 I 2008 I Voith Paper I twogether

REBUILDS

production. To achieve this goal, thePaper Technology Centre Finishing inwinding bed has to be soft enough to

Krefeld, Germany. The tests werehandle the paper rolls gently, while atsubsequently confirmed by visits tothe same time, possessing sufficientreference installations.

Customer Comment
Bengt Andersson
Production Manager
of Board Production

stability to cope with vibrations.
Moreover, the elastic drum covers

Apart from the ElaCare covered

have to be abrasion-resistant enoughdrums, the VariFlex offers a full range

to exclude the formation of dust.

of technical features, such as a slitter

Stora Enso,
Fors mill, Sweden

section composed of cutter units that
Due to the enormous leap forward

can operate without a trailing cable

Bengt Andersson has been watching themade in roll covering technology ininstallation. Cutting and surface dust

results of the rebuild for roughly a year

recent years, covers can now also

extraction systems, as well as aand sums up as follows.

be used for coated board. Moreover,

newly developed system for automat-“We have improved both formation andthe retrofitting of steel drums with

ic start and end gluing, are also offiber orientation angle, which means thatnew covers is also possible.

special note.

our targets have been accomplished.
I should add, that I never doubted thatIn the case of the Fors BM 2, theThe icing on the cake is provided bysuitability of the elastomer-covered

a roll conveying system, which will be

ElaCare drums was demonstrated

installed behind the new winder, andAs often happens in the industry, theduring extensive tests at Voith’s

provides gentle roll transport.

BM 2 was converted during a vacation

the headboxes would fit!”

period, which in this case was Christmas.
Naturally, Bengt visited the rebuild sitedaily, but what did his family think about
that?
“My family is used to it. After all, I havebeen working in the paper and board
industry for more than 35 years and suchthings are part of the job.”
A VariFlex winder,
seen here during
pre-assembly

It would appear that this tradition is set tocontinue for some time in the Andersson
family, as Fors has already ordered a
DuoShake unit for the middle ply and theinstallation of a calender upstream of thecoating section is also planned. “God Jul”,“Happy Christmas”, BM 2!

Contact
Josef Ablasser
Paper Machines
Board and Packaging
josef.ablasser@voith.com

25 I 2008 I Voith Paper I twogether

41

INTERVIEW

Chemical press felt cleaning in the press section

Felt washing for clean clothing
Robert Kling

Personal data:
Robert Kling from Voith Paper in St. Pölten,
Austria, is an expert on the subject of chemical and mechanical press felt cleaning.

The felts used in a paper machine press section are subject
to extremely stringent demands and must ensure both optimum
dewatering and production process stability.

twogether: In cooperation with thetrend in the number of sheet breaks.

Kolb chemicals company, you

Increased vacuum in the suction rolls

prepared a comprehensive study

and uhle boxes leads to higher

concerning the cleaning of press

energy consumption and felt wear.

felts. Your research also deals withShould these problems become

felt contamination. Could you tellacute, the only solution is a felt

us what effects these contamination

change. The resultant additional shut-have?

downs naturally result in production
losses.

Robert Kling: The batt fibers act asa type of filter and retain impurities

twogether: Today, chemical felt

from the production process. This iswashing is indispensable for paper-unavoidable, but such soiling canmakers. What is the basis for thelead to a variety of problems. In mostchoice of chemicals?

cases, these relate to a loss of paper
quality, while another phenomenon

Kling: There are a couple of generalthat can be observed is sheet

rules, e.g. calcium carbonate filler

crushing.

can often be easily removed with acidcleaning agents, while alkali agents

42

Sheet stealing is another negative

are normally the best solution forside-effect: the paper web has theorganic contaminants. However, thetendency to suddenly run in themost suitable cleaning agent inwrong direction in the press. How-

practice must be established in theever, the greatest disadvantage forcourse of laboratory testing. Fre-the papermaker derives from the fact

quently, it becomes apparent that op-

that contaminated felt has negative

timum cleaning results are achievedconsequences on paper machine

through a combination of diverse

runnability. Press dewatering can de-cleaning phases. It is also interestingteriorate, which leads to an upwardthat the average consumption of

25 I 2008 I Voith Paper I twogether

INTERVIEW

cleaning chemicals varies consider-conditions possible are created incan be done either during production

ably according to paper grade. In

the approach flow and the paper ma-or shutdown. However, the mostthe case of tissue, specialty papers,chine. This applies to the pH-value,frequently applied method is cleaning

board and packaging, it can be as-retention and water hardness. Gradeduring a shutdown. This offers the

sumed that around 250 g of chemi-changes are especially critical, if they

advantage that negative effects oncals per metric ton of paper will be

are linked to alterations in the chemi-

production are avoided and the felt

needed for felt washing. Conversely,

cals system. When we work with pa-

can be treated with relatively highonly 50 g/t are needed for graphic

per mills, we naturally look for suchconcentrations.

paper. This discrepancy mainly

critical points. This often means thatderives from the fact that there area considerable percentage of depos-

twogether: What recommendations

many graphic production lines where

iting can be prevented. Clearly, thisdo you have for paper producers withno chemical washing is carried out,

approach should first be tried andfelt contamination problems?

largely due to the clean raw materials

only then should the question of how

employed. During the optimization ofcontamination can be removed from

Kling: A number of aspects require

felt washing, we work closely with thethe felt be considered.

consideration during felt washing
optimization, e.g. the position of thechemicals supplier of the respective
paper mill.

twogether: What methods are avail-showers, the choice of chemicals andable for felt washing?

the coordination of subsequent

twogether: What are the most fre-cleaning steps. Clearly, the design ofquent causes of the problems that

Kling: Felts are always cleaned me-

the felts plays a major role how easily

occur?

chanically, i.e. with high- and low-

the felts get dirty and then can bepressure showers and uhle boxes.

cleaned. In many cases, the best

Kling: There are a number of typical

Chemicals merely play a supportive

solution is when answers are soughtrisk factors. For example, overdosing

role. In principle, one can differentiate

during close cooperation between thewith chemicals, or badly coordinatedbetween a continuous felt treatment

paper mill and its suppliers of chemi-

dosing points in the approach flow

with chemicals, which is relatively

cals and clothing. I think this offers

constitute one such problem. In gen-rare, and discontinuous treatment.

the best chances that paper quality

eral it can be said that care must be

Occasionally, the felts are subjected

and paper machine runnability can betaken to ensure that the most uniform

to discontinuous treatment, whichnoticeably improved.

25 I 2008 I Voith Paper I twogether

43

PRODUCTS

Class
coarseness Super fineFine

MediumCoarseMarket name

HS

HQ

HR

HC

Mnemonic

Super fine(S)

Quality(Q)

Robust(R)

Coarse
(C)

X/W/Y

W/Y

W/Y

Market types* W/Y

1

2

4

3

5

5 shed

1

2

3

MD

4

5

6

8
7

*1:1 = X 3:2 = W 2:1 = Y
8 shedHorizon SSB weft-bound product range overview

8-shed machine side HR and HC

The new PrintForm/MultiForm Horizon product range

Expand the operating window
Within a period of three years time, Voith Paper Fabrics has developed a complete new Horizon SSB weft-bound product line. The new
fabrics cover the entire product range – super fine, fine, medium
and coarse designs.
In 2004 Voith Paper Fabrics set in

New product philosophy

motion the development of a new
Horizon product range for the Euro-The new Horizon SSB designs clearlypean and Asian markets. The first two

distinguish themselves from the old

new product groups developed were

designs. Significant differences in

the fine HQ and the medium HR.

warp yarn diameters between top

These were officially launched in April

and bottom side are applied. The old

2006. Currently the development of

product contained a machine side

the coarse HC and super fine HS has

warp yarn that was 0.04 mm coarser

reached their final stages, and market

than the paper side warp. The newlaunches are expected in June 2008

Horizon designs differ by 0.06 mm

and March 2009, respectively. The

in the super fine HS and fine HQ

reason behind the development of andesigns and 0.08 in the medium HR

entirely new Horizon product range

and coarse HC. These changes have

was to serve the present and the fu-

proven to provide a positive impact

ture demands of you, the papermakeron paper quality, as well as contributeas well as developing a coarse prod-

to stability and life potential prop-

uct for the board and packaging

erties.

market.

44

25 I 2008 I Voith Paper I twogether

PRODUCTS

PS

Tb

T

X
B

B

T

Tb

HQY
HQW
HQX

0.6

T Top weft

Tb Top weftbinder yarn

Y

2:1

0.8
0.7

Caliper [mm]

1:1

B

0.5
0.4
0.3
0.2

T

T

B Bottom weft

0.1

W
B

MS

3:2

Tb

B

Three paper side versus machine side weftyarn ratios utilized

0

0

10

20

30

40
50
60
Material fraction [%]

70

80

90

100

Different dewatering properties X, W and Y versions

A further change in philosophy is the

Differentiation within

X-version results in the thinnest

opening up of the warp density. Withproduct groups

design and holds a low void volume.

this change, more weft yarns can be

The W-version is the best compro-

applied in the woven structure. This

Within the individual four major prod-mise between quality contribution

has a positive effect on the paper

uct designs, further product differen-and life potential.

side fiber support, contributing to pa-

tiation has been reached by applying

per quality and retention aid savings,

different weft yarn diameters and weft

The various weft ratios also influence

as well as the number of machineyarn ratios between paper side andthe dewatering properties. Togetherside weft yarns, increasing the fab-machine side.

with the different weft density versions

ric’s life potential.

available, this creates the possibility
Applications of bigger weft yarns giveto fit the new Horizons to nearly every

To even further increase the life po-

the Horizons more life potential andindividual customer position andtential of the medium HR and coarse

stability. On the other side, contribu-

related needs.

HC designs, where life is a crucial

tions to most of the paper quality is-

success factor, a 2-shed paper sidesues are negatively influenced. This iswith an 8-shed machine side has

a compromise that is decreased with

been applied, rather than the typicala Horizon design compared to older

The Voith Paper Technology Center

2-shed paper side and 5-shed ma-

double-layer designs, but still is an(PTC) trial paper machine VPM 6 haschine side.

existing one.

been a big help in the development of

Tested in the PTC

the new Horizon product range.
The high 8-shed machine side gives

The three utilized weft yarn paper

the fabric long cross directionalsides versus machine side ratios are

The ability to push a product to thefloats, which well protect the warp

2:1 (Y), 3:2 (W) and 1:1 (X). Each ofouter borders of its operating windowyarns against wear and also equipthese three ratios has its own charac-

has supported the quick development

these designs with 75% more life

teristics. The Y-version gives a struc-and a risk-free initial application ofpotential versus the 5-shed machine

ture with maximum quality contribu-

these products on real world papersides.

tion and a good life potential. The

machines.

25 I 2008 I Voith Paper I twogether

45

PRODUCTS

Volume

HC
HR
HQ
HS
old 3
old 2
old 1

02/03 03/04

04/05 05/06 06/07

Trial runs with the HS have beenThis new concept will be tested onmade on the VPM 6 up to a speed of

the VPM 6 in the spring of 2008,

2,500 m/min! The HS showed no

and we expect final analysis to show

problems handling the water and/orthat it outperforms even our own

contributing to the delivery of good

expectations.

quality paper. The first HS customer
Sales volume development
per financial year

Current status

piece was installed on September 25,

The close collaboration between

2007. It performed very well with

Voith Paper Fabrics and the otherregard to contribution in paper quality

Voith Paper group divisions makes us

and paper machine runnability. Voitha very strong team when it comes toPaper Fabrics is now seeking anotheroptimization of paper machines. Our

Three years after the start of the SSB

five trial positions. If these all go well,

One Platform Concept enables us todevelopment plan, which represents

the HS launch will be executed inbring any solution to our customers.

the idea to create a whole new Hori-

March 2009.

The new Horizon product range isanother step closer in never letting

zon product line, it is clear the rightdecision has been made. Even with

The nearby future

down any of our Voith Paper customers.

only half of the product range nowcommercially available (launch of theBeing close to the point of commer-

HQ and HR), production volumes

cializing the last two Horizon prod-

have already more than doubled.

ucts, already new ideas are being

Infoboxdeveloped by R&D. The latest idea
At the moment, the finishing touches

can truly be called revolutionary: HM.

The products HS, HQ, HR and HC are only
available in Europe and Asia.

are being made to the super fine HSFirstly it has the possibility to expand

Contact

and coarse HC designs. Field trial

the operating window even more thanruns of the HC have shown only posi-

the SSB weft-bound did when it wastive performances so far. Nothing

introduced on the market aroundlooks to be standing in the way of the

1999. Secondly, it will hold a global

intended launch in June 2008.

application.

Johan Mattijssen
Fabrics
johan.mattijssen@voith.com

Tested in the
PTC – thenew Horizon
product range

46

25 I 2008 I Voith Paper I twogether

PRODUCTS

PrintFlex O2 Planar

PrintFlex O3 Planar

One more step in the development of non-woven press fabrics

Combining established and new technology
Voith Paper Fabrics takes another major step towards extending
the application range for non-woven press fabrics. In the new press
fabric concept non-woven yarn systems are combined with andintegrated in other exclusive components offering unique press
fabric properties.
Double- or multi-layered non-woven

With the unique combination of Voith

press fabrics have been marketed

Paper Fabrics Vector and Spectra

for about 15 years and are today

components with length and cross-established standard products for

directional yarn systems, the range ofmany press section configurations,applications for non-woven products

especially on graphic machines.

can be extended to such an extent
that they can now be used on virtu-

Compared with conventionally woven

ally all press positions.

base structures, the non-woven concept has several clear advantages as,

Integrated components –even pressure distribution thanks to

Vectorthe lack of yarn crossing points andfaster startup due to the low initial

With the introduction of Vector tech-pore volume.

nology by Voith Paper Fabrics someyears ago, an important step in the

The low void volume of the basedevelopment of new press fabricstructure and the lack of yarns in thecomponents was taken. The Vector

Z-direction limit however the com-layer’s three-dimensional structure ispaction resistance of products cur-unique as it combines the marking

rently on the market and thus pre-free properties of non-woven com-vents them to be used in all kind of

ponents with high compaction resis-

positions in the press section.

tance and high elasticity in theZ-direction.

25 I 2008 I Voith Paper I twogether

47

PRODUCTS

Vector – in combination with all types

ables use as a stand-alone compo-

the key to the success Voith hasof basic fabrics – contributes to:nent that in turn can be successfully

achieved worldwide with this fabric● Higher wear resistance due to a

combined with one or more cross-type on fast-running graphical paper

directional yarn structures.

machines.

Elastomer technology

The elastomer technology proves

stronger fiber bond
● Optimized surface characteristics
due to excellent bridging of thebase structure

especially successful in extremely de-● Higher compaction resistance inSince introduction of elastomer tech-manding positions where convention-

nology as a complement to conven-ally structured fabrics quickly com-

tional woven structures, Voith Paper

press due to high line forces, hard

Fabrics was able to maintain its

rolls and high speeds. This can result

market-leading position for mem-in vibration problems and short fabric

Vector modules can be combined

brane fabrics, and even extend its

life. The picture of the polyurethane

successfully with yarn layers in differ-lead.

membrane shows an example of how

the Z-direction● Reduced flow resistance for more
effective dewatering.

ent directions, and thus the above

the Spectra elastomer technology

characteristics can also be trans-

Polyurethane membranes have thecontributed in reducing vibrations

ferred to non-woven fabrics Vector

following advantages compared toand thus improves runnability in aprovides in combination with woven

conventional press fabrics:

high speed paper machine.

components improved compaction● Improved dimensional stability

resistance. The same advantages are● Higher dry content due to higher

achieved with PrintFlex V Planar andElastomer technology incompressibility and fast expansion

combination with non-woven

thus the fabric properties are muchafter the press nip (lower re-wet)yarn structures

better retained through the whole life.

● Faster startup thanks to excellent
compressibility of the fabric

The possible combination of differ-

Integrated components –● Excellent vibration resistance

ently oriented non-woven yarn layers

Vector with weft yarn

● Very well retained properties

with a polyurethane membrane, or

through the whole life due to thethe Vector technology, offers the

As a further development step, Voith

unique material characteristics ofadvantages of two different concepts

Paper Fabrics can integrate a MD

polyurethane.

combined in the same press fabricyarn system into the Vector compo-

design.

nent through a unique manufacturing

The illustration shows how well theprocess.

polyurethane membrane keeps its

The lower void volume of non-woven

thickness and shape after the record

fabrics combined with the high com-

In addition to the characteristics list-

run in a fourth press (1,650 m/min,pressibility of the polyurethane mem-ed above, the plied monofilaments ingrooved steel bottom roll, line load

brane speeds up the startup eventhe machine direction serve for a

140 kN/m). The ability of polyure-further compared to other fabric con-greater tensile strength, which en-

thane to maintain its characteristics is

cepts. In positions where current

New polyurethane membrane

After use

Vibration reduction using Spectra elastomer technology









48

25 I 2008 I Voith Paper I twogether

PRODUCTS

PrintFlex V2 Planar

PrintFlex V3 Planar

PrintFlex S3 Planar

non-woven structures offer too low

ume are relatively often successfully

woven press fabric products with its

compaction resistance and thus

used in shoe presses. Depending on

development of new, integrated press

cause vibrations, the membrane tech-

the paper type and its weight, thefabric components and unique com-

nology now allows for the advantages

surface structure of the shoe press

binations of non-woven structuresof non-woven fabrics to be utilized.

sleeve can leave markings. In coop-from different materials with different

eration with the Voith Paper QualiFlex

characteristics:

In several positions where membrane

department, studies with different

fabrics with woven basic components

fabric types were conducted to deter-

PrintFlex O2 Planar

successfully have been used, amine the probabilities of structured

PrintFlex O2 Planar runs ideally onchange was made to non-wovenpress cover surfaces to leave mark-lower press loadings and mainly

versions. The performance of theings. The result clearly showed that

supplies graphical shoe presses.

machines was thus increased even

non-woven fabrics with Vector or

further.

Spectra components greatly reduce

PrintFlex V3 Planar

the risk of markings considerably

The open structure of PrintFlex V3

Reduced risk of roll and sleeve

compared to standard non-woven

Planar is suited for higher press load-

pattern marking

fabric types currently on the market.

ings with enlarged water outcome.

The differences become even more

In addition, the integrated Vector

Thanks to the shared resources

pronounced when comparing fabrics

technology enables optimal cleaning.

offered by the Voith Group, productthat have been run in the paper

characteristics can be evaluated atmachine.

PrintFlex S3 Planaran early phase and possible issues

PrintFlex S3 Planar ideally runs on

can be addressed in due course.

Summary

Traditional non-woven fabric con-Voith Paper Fabrics offers the first-

Module is able to compensate forcepts with their low initial void vol-ever complete product range of non-machine-related failures and irregu-

vibration-prone positions with higher
press loadings. The unique Spectra   

larities in most areas.

Contact

#    

$
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

   

 ! " 25 I 2008 I Voith Paper I twogether

Shadow markingsfrom grooved shoepress sleeveAnders Nord
Fabrics
anders.nord@voith.com

 ! " 49

RESEARCH AND DEVELOPMENT

Workshop assembly of the EcoSoft calender
Customer: Sun Paper PM 21
Year of Manufacture: 2006
Nip pressure range: 30 -150 N/mm
Sheet width: 4,998 mm
Number of zones: 36
Design speed: 1,300 m/min

A new generation of Nipcorect calenders

EcoSoft M and EcoCal M – customized for your products
The latest calender range is equipped with advanced Nipcorect
technology. It has been developed for machines up to a working
width of 6,500 mm and a design speed of 1,500 m/min and offers
excellent profiling possibilities in addition to further reduced
energy consumption.

50

25 I 2008 I Voith Paper I twogether

RESEARCH AND DEVELOPMENT

With regard to the demands and

EcoCal calenders incorporating

go back immediately to the previous

requirements of the paper and board

Nipcorect rolls: the EcoSoft M andprofile setting after a sheet break or

industry, Voith has created the One

EcoCal M range.

other interruption in production.

The new variants

The Nipcorect roll is controlled by

Platform Concept. It aims at making
available installations which offer theindustry a combined maximum ofVoith’s Profilmatic OnQ Module Nip

quality, efficiency, operating safety

The principle component in this newprocess control software serving as

and environmental friendliness. Thus,

range of calenders is the Nipcorect M

an interface between the QCS scan-a modular system has been estab-with its advanced profiling possibili-

ner and the Nipcorect roll’s hydrauliclished that allows realizing the opti-

ties – a further development of thecontrol system. This interface pro-

mum solution in each individual case.

Nipcorect zone controlled roll. As avides for closed loop monitoring andWithin the One Platform Concept,

result of individually controlled small

the rapid, automated correction of

calenders obviously play an important

zones and appropriate shell thickness

the sheet’s CD caliper profile. The

role since they determine such impor-they provide for improved CD profile

software calculates the setpoint for

tant parameters like smoothness,

control. Thanks to this, profile correc-

each control zone in response to a

gloss and bulk which have a decisivetions can be carried out in the rangechange in overall nip load as well as

influence on the end product and ulti-

of 150 mm: a higher resolution thanthe correction required for variations

mately ascertain its saleability. That is

any other calender supplier has previ-in caliper.

the reason why Voith has establishedously been able to achieve using thisa comprehensive variety of finishingtype of technology. Unlike external

Five standard sizes of Nipcorectmeans for all the paper and board

profiling units, the Nipcorect roll iscalenders have been developed togrades that require calendering.

not energy intensive and does notaccommodate a range of sheet

suffer from a time lag between thewidths from 2,300 mm to 6,500 mm,

Recently the product range has been

detection of a change in sheet caliper

a maximum speed of 1,500 m/min

expanded to include EcoSoft andand correction response. It can also

and nip pressures between 10 N/mm

M-Lock functions:
Closed25 I 2008 I Voith Paper I twogether

OpenedRoll removed

51

RESEARCH AND DEVELOPMENT

to 300 N/mm. These calenders arealso facilitates the easy removal of

prototype in agreement with the end

based on proven designs and use

the rolls. Where space in the paper

customer. The installation has been astandard and pre-engineered ele-machine permits it, these calenders

complete success, with the Nipcorect

ments throughout the size range towill be offered with the “M-Lock”

technology exceeding forecasted

achieve delivery times as short assystem on which doctors, spreader

performance. As a direct result, thepossible. All calenders are assembled

rolls and cover monitoring equipment

design was refined into the EcoSoft M

and tested prior delivery to minimise

can be mounted: the “M-Lock” arms

and EcoCal M calender range.

mill-site erection and commissioning

are rotated clear of the calender totimes.

significantly improve maintenance

The number of orders placed withaccess and decrease the time for roll

Voith for calenders of EcoSoft M andremoval.

EcoCal M providing highest CD

The calender frames are designedwith a 30° incline to provide the in-profiling resolution by using thiscreased stability that is obtained with

The very first EcoSoft M was installed

Nipcorect M technology proves thata low centre of gravity. The compact

at Papéterie du Léman, Laval, France

the paper industry has fully becomeframe footprint makes the designin 2003. This calender design was aaware of the benefits which thesesuitable for retrofitting into mostderivative of the highly successfulmachines offer.

existing paper machines. This design

EcoSoft Modular and was sold as a

EcoSoft calender installation at Sun Paper, PM 21

Contact
John Caulfield
Finishingjohn.caulfield@voith.com

Andrew McHugh
Finishing
andrew.mchugh@voith.com

52

25 I 2008 I Voith Paper I twogether

REBUILDS

Rebuilt VariRoll at M-real in Biberist

Modern and dependable again – Voith rejuvenates a 26-year-old VariRoll

High-speed rebuild exceeds customer expectations
Thanks to this rebuild the M-real paper mill in Biberist, Switzerland,
can now depend fully on their ageing VariRoll center drum winder.
After modernization, this VariRoll is no less reliable and userfriendly than a brand new machine.

25 I 2008 I Voith Paper I twogether

53

REBUILDS

With a working width of 5,100 mm,

Operator guidance forthis center-drum winder handles

professionals

wood-free coated art paper in thebasis weight range 45 -135 g/m2 at anThis new operator guidance concept

operating speed of 1,800 m/min.

centers around the well-proven VariTronic control and operating system.

Scope and duration of rebuild

It enables for example optimal adjustment and monitoring of the knife

This rebuild mainly involved complete

positioning, winding hardness mea-

mechanical revision at the Krefeld

surement and line force generation.

works of all wind-up stations, upgrad-Particularly useful is the possibility of

ing the control system to S7-technol-

storing roll format specifications andogy, and modernizing the safety andwinding parameter data. This not only

operating concept to the current state

assures faultlessly wound rolls of con-of technology. Voith took less thansistently high quality, but also saves

seven days for all this, including dis-the customer valuable time otherwise

mantling the old wind-up stations,needed for winder adjustment.

laying 7.5 km of new cables, andMill computer data can also be fed totroublefree re-commissioning of thethe system for optimal setting of therebuilt winder.

VariRoll parameters.

Control desk prior to rebuild

Operating system after rebuild

54

25 I 2008 I Voith Paper I twogether

REBUILDS

Ejection of finished paper rolls

Customer Comment
Martin Stocker
Project Manager
M-real Biberist,

The outstanding success of this re-

Switzerlandbuild project was thanks to rigoroustime and cost management, smoothly
coordinated teamwork between thecustomer and Voith, and not least to
Voith’s enormous experience with

“Our old VariRoll was hardly recognizablewinder rebuilds.

afterwards – Voith rejuvenated it soquickly and successfully that all our

All requirements fulfilledexpectations were not only met but also
exceeded. It now produces paper rolls

The results speak for themselves:of faultless quality, and the machine is● Absolutely square paper roll ends,

much easier and safer to operate. In a

● Excellent winding hardness

nutshell: our rebuild decision has paid off

structure,● Faultless paper roll quality

in full.”Contact
Robert Koch
Finishingrobert.koch@voith.com

and exemplary controllability as well.

25 I 2008 I Voith Paper I twogether

55

PRODUCTS

Name

Roll type

EvoTecEvoFlow
EvoPress
EvoSize
EvoRunSuction rollPress rollSpreader roll
Paper roll

CarboTec
CarboForm
CarboRun PG
CarboRun CS

Shaken breast roll
Paper rollCenter-supported roll

Entire roll systems optimized and adapted

EvoTec and CarboTec – the new roll generations
Optimization is an ongoing task in paper mills today. The interplayof rolls, roll covers and related components directly influences
paper machine performance. Roll systems require more attention
and upkeep than any other part of the machine.

The new-generation EvoTec and

EvoTec and CarboTec roll systems

CarboTec roll systems incorporate

are outstanding due to their innova-

Voith’s entire papermaking and rolltive details, advanced design – which

technology know-how. While theis customized to specific require-

EvoTec product line includes allments, and unsurpassed quality. They

cast iron, steel and stainless steel

are built for reliability, safety and longrolls, the CarboTec rolls are made oflife. All these rolls are manufactured

carbon fiber composite materials.

to the highest precision, and meet themost stringent quality standards.

56

25 I 2008 I Voith Paper I twogether

PRODUCTS

The CarboTec team in
Wimpassing, Austria

Carbon fiber composite

Roll production
in St. Pölten, Austria

EvoFlowtion rolls are customized to specific

EvoSizerequirements.
The new EvoFlow suction roll isbased on a well-proven design that

Perfect roll concentricity, negligible
EvoPresshas been systematically optimized for

deformations and high-performanceroll cover systems are the main fea-

maximum dewatering performance

Reliabe press roll systems are trou-tures of EvoSize applicator rolls. No

and minimal power consumption.

ble-free and low-maintenance. A fail-other type of roll reacts so sensitively

Among the other advantages of theseure free operating is mandatory evento temperature effects as applicatorrolls, they produce the lowest pos-at highest loads. Therefore EvoPress

rolls do.

sible lubricating water consumption

press rolls are individually laid out

and longer maintenance intervals.

according to the latest design meth-Heat generated in the nip by fullingods. Gentle web drainage is ensured

must be safely removed to prevent

Oscillating high-pressure spray pipes,

even at the highest line forces. For

thermal deformation and cover sepa-

with self-cleaning nozzles are avail-this reason, the roll and cover mustration. Voith EvoSize applicator rolls

able to avoid plugged suction holes,

be perfectly coordinated. The first-

have an effective and dependable

and the innovative SeaLencer sealingclass materials and high-precisioncooling system with coolant feed andstrips system minimizes friction andmanufacturing ensure minimal vibra-

outlet both on the tender side of thenoise development. All EvoFlow suc-tions and high operating reliability.

machine. The advantage of this sys-

25 I 2008 I Voith Paper I twogether

57

PRODUCTS

tem is a uniform water ring of defined

EvoTec roll systems are developed,

size that ensures an absolute homo-

designed and built by experienced

geneous temperature profile.

specialists at Voith Paper Rolls
St. Pölten, Austria. All our trend-

EvoRunsetting roll systems are manufactured
using the latest high-precision ma-

The demands on paper rolls range

chine tools.

from web support to fabric guiding
and driving. EvoRun paper rolls

CarboTec

feature high-precision manufacturing
and precise dynamic balancing. For

CarboTec rolls are made of carbon

balancing in the third plane, patented

fiber composite comprising two com-

mountings are used that safely posi-

pletely different materials: the fibertion the balancing weight without

and the matrix.

weakening the roll pipe. Particular attention is paid to the radial deviation

The carbon, glass and aramid fibers

S2 at double the rotary frequency,

provide the necessary strength andwhich directly affects vibrational be-

stiffness, while the resin matrix bind-havior. Particularly in the semi-criticaling the fibers mainly determines the

speed range, a low S2 deviation is im-

thermal properties and chemical re-perative for optimally smooth running.

sistance of the composite as a whole.

EvoFlow58

25 I 2008 I Voith Paper I twogether

PRODUCTS

Fiber-plastic composites enable cus-tion, and the high specific stiffness

tomized roll design thanks to theiror strength of CarboForm roll material

specific characteristics. Since theis optimally utilized.

Customer Comment
Thomas Wischeropp
Klingele Papierwerke,characteristics of fiber-plastic composites are anisotropic due to fiber

Weener mill

CarboRun PG

reinforcement, the resultant mechanical properties can be influenced by

CarboRun PG paper rolls are primar-

selecting or orientating the fiber rein-

ily dimensioned according to the nat-forcement accordingly. For example

ural frequency of the rolls. Their low

different stiffnesses in the peripheral

weight and high specific stiffness“Due to the operating situation on ourand axial directions are possible andenable higher operating speeds thanPM 2, which has a single-felted first press

the thermal expansion characteristics

steel rolls. CarboRun PG rolls arenip, nip water drainage was inadequate.

of the roll body can be influenced.

used in paper machines, coaters,

This caused sheet crushing and frequentwinders and calenders.

web breaks. Since we needed a new suc-

CarboFormtion press roll sleeve, Voith Paper Rolls
CarboRun CS

Shaken breast rolls must be light-

worked out with us an optimized drilling
pattern both for the roll core and cover.

weight and resistant to deformation.

CarboRun CS rolls are used in the

The new surface design now enables reli-

The low weight of CarboForm rolls

wire section for wire guidance orable drainage, eliminates crushing andenables a higher shake frequency,

spreading. The ideal flexing curve ofhas greatly reduced web break frequency,

which makes for better sheet forma-these center-supported rolls is thanks

resulting in 2% higher production output.

to an outer tube of carbon composite

Particularly at the higher end of our prod-

material. The advantage of these rolls

uct basis-weight range (corrugated board/is their combination of low weighttestliner at 90-180 g/m2) this optimization

and a precisely predetermined bend-

takes full effect. In other words, the proj-ing.

ect goals were reached in full”.

Voith established a new production
facility in Wimpassing, Austria, for theentire CarboTec roll family. Depending
on application, roll covers or coatings
optimally suiting the specific requirements and roll design can be fitted
here. The possibilities opened up by
carbon fiber composite materials will
also be exploited in further development projects.

Contact
Laslo MonteRollslaslo.monte@voith.com

Dr. Norbert Gamsjäger
Rolls
norbert.gamsjaeger@voith.com

25 I 2008 I Voith Paper I twogether

59

SERVICE

3DG grinding machine

3DG – an innovative Voith Paper Rolls grinding concept

Roll grinding in the third dimension
Rolls ground by 3DG attain such unsurpassed precision thatthey run better than ever before. The days when eccentricities
were transmitted to the roll surface are definitely over.

MD coating profile (schematic diagramm)

Lengthwise coating thickness variations causedby coater backup roll eccentricity

60

Measurement of roll journal
geometry

25 I 2008 I Voith Paper I twogether

SERVICE

Eccentric rolls can vibrate heavily –contour and journal geometry. Com-and these vibrations are transmitted

pared to conventional grinding con-to neighboring structures and com-

cepts far more measuring points areponents such as doctor beams andused for determining the roll surface

backup rolls. This results in a chain

contour. And by measuring the jour-reaction, that affects entire control

nal geometry, any eccentricities cantions are practically eliminatedloops, causing additional loading on

be fully compensated by the control● The MD-2Sigma coating thickness

the components involved.

system and no longer transmitted tovalue is almost constant, thus

the roll surface. That is why this con-saving coating

The running characteristics of rolls in

cept enables such high concentric

direct contact with the paper, such as

precision.

Advantages● Roll-induced vibrations are practically eliminated● Lengthwise coating thickness varia-● Barring problems are practicallyeliminated● Roll life is longer thanks tocoating or calender rolls, significantly
influence product quality. Any devia-

The roll contour measurements aretion in roll concentricity or geometry

then processed into a 3-dimensional

can cause serious fluctuations in

representation of the surface topog-

high-resolution surface geometry

coating thickness or sheet thickness.

raphy, which was previously not pos-imaging.

geometrical precision● Fault analysis is simplified bysible. This 3D image can, in combina3DG can stop this chain reaction attion with MD an CD sheet profiles,

3DG has already been successfully

the source by practically eliminating

easily locate errors.

used at the Wimpassing and Laa-roll vibrations. The neighboring com-

kirchen Voith Paper Rolls service cen-ponents are no longer affected; result-

In the subsequent grinding process,ters in Austria. This innovative grind-

ing in consistant high paper quality.

the roll surface contour is trimmed

ing technology will soon be installed

to the ideally concentric geometry

in other service centers as well.

How does 3DG work?

previously determined. Deviations arecorrected by a grinding disk with

The procedure starts with high-preci-

high-dynamic control. The result is asion measurement of the roll surface

perfect roll geometry.

3D roll surface imaging

Uneven coating thickness with aconventionally ground roll25 I 2008 I Voith Paper I twogether

Contact
Jochen Honold
Rolls
jochen.honold@voith.com

Uniform coating thickness with a
3DG ground roll61

PRODUCTS

SkyComp 40: fiber composite material withat least 40% carbon fiber reinforcement

SkyClean C: fiberglass and carbon fiber composite with finely distributed cleaning particles

SkyTop T: composite of carbon fiberand high-temperature duroplastic
matrix with finely distributed cleaningand polishing particles

Cost reductions and greater machine availability

The perfect single-source trio:
roll, cover and doctor blades
Voith’s vast know-how on the interplay between rolls and covers is
now enhanced with the introduction of the SkyLine doctor blades.
Thanks to the perfect coordination of all components, they increase
productivity and enhance paper quality. Specialized technical support is ensured worldwide by Voith Paper Rolls.
Doctor blades and coater blades are

optimized doctors for all applications.

produced and tested from Voith Pa-

Voith Paper Rolls is able to recom-

per Rolls near Wimpassing, Austria.

mend and deliver the right doctor“It was logical for us to choose thisblades for every position in paper

location”, explains Dr. Norbert Gams-

machines and for every type andjäger, R&D Voith Paper Rolls, “be-origin of roll cover”.

cause it enables us to jointly develop
SkyLine doctor blades for all paper
machine sections(red = commercially available)

SkyLinedoctor blades
SkyPoly
SkyTexSkyDur
SkyComp
SkyCarbon
SkyGrid
SkyClean
SkyTop
SkyMet C
SkyMet S
SkyMet M
SkyMet B

62

Application area
Wire section

and optimize doctor blades, coater

SkyLine doctor blade and coater

blades and roll covers. Thanks to ourblade technology is available for all

roll cover know-how, we can offer

paper machine sections. Voith’s de-Press section

Dryer section

Sizing & coating

CalenderReel

25 I 2008 I Voith Paper I twogether

PRODUCTS

Voith Paper Rolls service technicianchanging doctor blade

Checking blade wear traces on site todetermine the optimal doctor setting

velopment work focused specifically

SkyComp products are very cost-

Detailed analysis of the doctor

on fiber composite doctor blade ma-

effective thanks to their material mix

blade situation

terials and thermal coating of doctor,of carbon fiber and fiberglass: theycoater or creping blade. This is the

combine the efficient cleaning effectUsing Voith high-performance doctor

first time in the paper industry thatof fiberglass with the durability of car-blades minimizes material losses anddoctor blades have been optimized tobon fiber.

improves the doctor blade wear pro-precisely suit roll cover materials andsurface characteristics.

file. Fluctuations and deviations of
The service life of SkyCarbon blades

the doctor mountings and beams

is particularly long because theircannot however be compensated by

In order to ensure consistent highreinforcing material is comprised

the blade. To identify such deviations

quality for dependable paper machine

exclusively of carbon fiber.

and optimize the doctor blade situa-

operation, SkyLine doctor blades aretion, Voith Paper Rolls can carry out

manufactured exclusively from first-

For the conditioning and gentle clean-class materials.

ing of ceramic covers, Voith Paper

detailed investigations.

has developed the SkyClean, SkyGrid

These investigations show up any

The perfect blade for every

and SkyTop blades. Each type con-doctor system problem, which canapplication

tains different fillers with different

then be combated effectively. Fur-grain sizes. The fillers provide excel-

thermore, the analysis does not stop

Voith doctor blades and coater

lent abrasive surface treatment,at doctor systems and roll covers, butblades are thoroughly tested in theas well as maintaining surface rough-also examines all influences on doc-

Voith Paper laboratories on a wide

ness and efficient paper sheet re-

tor operation such as vibrations, rollvariety of covers and paper grades

lease. The value of this has beengeometry, etc. as well as the interplay

using model tribometers. Based on

proven on various ceramic rolls inof rolls, covers and doctors.

these test results, the blades andthe press section. It has been demon-covers are optimally coordinated.

strated that using SkyTop doctors
maintains the surface roughness of

To optimize the fiber composite blade

ceramic rolls constant over their ser-design, the textile and resin contents

vice life, thus enabling higher paperof material mixtures are systemati-

machine operating speeds and longer

cally varied by Voith Paper Rolls. Thisroll life.

determines the cleaning effect andservice life of SkyLine products. The

Voith SkyLine doctor blades havevarious product groups are designed

also proved themselves well on rollto meet different priorities.

covers of other suppliers.

25 I 2008 I Voith Paper I twogether

Contact
Dr. Georg Gobec
Rolls
georg.gobec@voith.com

63

RESEARCH AND DEVELOPMENT

Schematic structureof the NeoSilk calenderroll coverSizing, coating and calendering with trendsetting technology

New Finishing roll covers
Based on the Voith know-how and using the latest nanotechnology,
Voith Paper Rolls has developed a new generation of finishing rollcovers.
The past decade has seen a transitionof SolarCoat, a new polyurethanefrom offline to online finishing tech-cover for film coating, and NeoSilk/

nology. Simultaneously, the demands

NanoPearl, new composite coveron paper machine equipment rose tolines for calendering.

fulfil the growing requirements ofquality and efficiency. Sizing, coating

SolarCoat – new polyurethaneand calendering are all key aspects ofcover for film press rolls

the finishing process. To meet ourcustomer needs, Voith Paper Rolls

SolarCoat is the result of extensive

has invested significant resources intests carried out on Voith pilot film

the last few years toward developingpresses, and numerous field trials.

improved roll covers for the finishing

The SolarCoat cover combines asection of the paper machine.

hydrolysis resistant shell bonding
system and a new polyurethane func-

64

The outcome of Voith Paper Roll’s in-tional layer formulation optimized forvestment can be seen in the launches

all requirements on a film press.

25 I 2008 I Voith Paper I twogether

RESEARCH AND DEVELOPMENT

SolarCoat’s features:

NeoSilk features:for the most intense calendering ap-● Stable nip conditions are attributed● optimized filler and resin systems

plications and highest quality require-to the elimination of hardness varia-

ments.

reduces wear and abrasion● minimum grind losses to restore

tions and uneven swelling● very high wear resistance for longrunning intervals (e.g. the coverreached a running interval of 13 to
16 weeks in two major applications)● very high wetability for a perfectfilm formation on the cover● very high transfer rate for reduced

surface finish increases overall

NanoPearl features:cover life

● nano-particle fillers allow signifi-● excellent barring and vibrationcantly improved surface finish
capability, improve the resulting

resistance● optimized thermal characteristics

paper surface qualities and greatly

improves load and temperature

increase wear and abrasion resis-

capability.

tance● dual component nano-particle

misting and best coating quality● low rod spitting at very high speed

NanoPearl – premium nano-composition provides improved● excellent dynamic and dampening

technology calender cover

vibration resistance and enhanced
elastic behavior

properties for a smooth, vibrationfree run also at highest speed.

The NanoPearl covers are the state-● heat generation is greatly reducedof-the-art calendering technology

allowing higher operating speeds

NeoSilk – cost-effective

employing an enhanced nano-particle

and requiring reduced power tocomposite calender cover

filler system. The nano-particles haveoperate.

been further optimized by introducing
NeoSilk composite covers incorpo-

a dual component particle system:

rate all the know-how accumulated

a hard phase and an elastic modifica-

by Voith in hundreds of calendertion. These new nano-particles im-applications. NeoSilk covers are cost-prove strength and stiffness while ateffective solutions designed to meetthe same time provide a dampening

today’s demand for conventional andeffect when impacted. NanoPearlmodern calendering applications.

covers are the world-class solution

Cost comparison for supercalenderapplication on coated paper

500
400

120
Added value
NanoPearl

200
100
Price
Oper- Overall
difference ating covertime life

Dr. Thomas Leitner-Kuzmany
Rolls
thomas.leitner-kuzmany@voith.com

Standard technology

100

300

0

David Brew
Rolls
david.brew@voith.com

NanoPearl covers with nanotechnology
fillers: unrivalled quality for proven productadvantages

Power consumption reduction

Torque (N/m)

Relative gain (%)

600

Contact

Equivalent
cover costsavings

25 I 2008 I Voith Paper I twogether

NeoSilk

80
60

NanoPearl

40
0

100

200
300
Line force (kN/m)

400

65

RESEARCH AND DEVELOPMENT

New fiber test equipment for the press section

Tracking down moisture with FiberXPress
Thanks to the result of the analysis of FiberXPress, the dewatering
capacity of a press can be increased and thus the costs decreased.
A high dry content after the press

Press-like test conditions

section is always important, because
this enables a higher operating speed

The new FiberXPress test unit, devel-with greater production output

oped by Voith Paper Automation,accordingly. Furthermore, it reduces

analyzes stock, usually taken from

specific steam consumption in thethe mixing chest, in view of its water

dryer section and consequently saves

removal capability in the press

operating costs.

section. To this purpose the stock is

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FiberXPress enables conclusive analysis of e.g. the effect of
freeness in stock preparation, or of different press nip loads on
dewatering performance

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66

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25 I 2008 I Voith Paper I twogether

RESEARCH AND DEVELOPMENT

Customer Commentpressurized up to 10 MPa in thetest results enable well-founded rec-FiberXPress pressure chamber, there-ommendations for press optimization.

by simulating mechanical dewatering

It may, for example, be a good idea

in a press. The FiberXPress enables

to change the press configuration,

on-site visualization of dry content

use a different type of press roll, or

development as a function of time,increase line force in the nip. The

and the effects of varying pressing

effects of using a different furnish

duration, nip pressure and tempera-

can also be simulated with the Fiber-

ture can be analyzed precisely.

XPress under laboratory conditions

Ir. Drs. A.W.M.B.

and evaluated. In any case, analysis(Ton) van Haasteren van Kessel

with the FiberXPress always shows

Technologist Paper

Senior Process

clearly how to improve press dewa-

and Board Thermo-

Engineer

Since this new development was

tering performance and save operat-

dynamics Smurfit

Smurfit Kappa

focused above all on realistic simula-ing costs accordingly.

Kappa Paper Produc- Roermond Papier

Better dewatering possibletion of press conditions, FiberXPress

tion Technology

Ir. L.P.M. (Loud)

B.V.

“We found FiberXPress an extremely useful tool for showing up fiber dewatering
The required pressure is built up with compressed air in the upper
chamber of the FiberXPress. Water pressed out of the stock
drains into the weighing scale dish underneath. Stock dewatering
performance is assessed by analyzing the dried fibers and theextracted water

performance. It is much more advanced
than conventional test methods, basedfor example on water retention capacity
or freeness. The test parameters arecontrolled more precisely and can bevaried over a wider range. This enables abetter approximation to the papermaking
process, with more conclusive results
accordingly”.

Contact
Dr. Andreas Eichler
Automation
andreas.eichler@voith.com

25 I 2008 I Voith Paper I twogether

67

NEWS

Air handling unit on the roof at Zottin Mertingen, Germany

Voith Paper Air Systems opens up new industries

Cooling and ventilation for cola, paper, and yogurt
What do dairy products, textiles, and beverages have to do with
Voith Paper? Since the founding of Voith Paper Air Systems on
1 June of this year, quite a bit.

68

The new cooling and ventilation

With the integration of essential com-systems division, based in Bayreuth,

ponents and all of the technology ofGermany, works primarily with thethe former Wiessner GmbH into thepaper industry, but even in the forma-

Voith Group, a comprehensive re-tion period, the potential for indus-

structuring took place. This led totries not previously addressed by

the creation of two product centers

Voith Paper became apparent. So in(Center of Product – COP): paper,

the future, the system provider forfoods, and a special division, which

paper machines will deal not only

includes tobacco products and tex-with the optimization of dryer sec-tiles. With over fifty percent of thetions, but also the cooling and venti-

sales volume, the paper divisionlation technology for yogurt andclearly dominates, but also in the oth-thread. This offers advantages forer two areas there is still enormous

manufacturers and retail giants, as

potential, according to Dr. Hermann

well as for individual consumers.

Bernard, head of Voith Paper Air

25 I 2008 I Voith Paper I twogether

NEWS

Systems during the start-up phase.

Optimum process air is critical, espe-

Systems are higher than in those of“The current structure gives us many

cially in the dryer hood of a paper

the competitors. “This has a notice-opportunities for development. Thismachine. There is not only extreme

able effect on the energy usage andis shown by the initial orders, such asheat during the drying process oflowers costs,” explains Dr. Hermanna cooling tunnel for Milchhof Brixen –paper but chemicals are released into

Bernard. The higher the dew point is,

BRIMI, the only mozzarella producer

the environment, too. In order tothe less energy is used. At the samein South Tyrol, or the construction

achieve high paper quality, ventilation

time, the controlling system EOS

of a special blow box for cooling syn-equipment from Voith Paper Air(Energy Optimization System) realizes

thetic fibers for Oerlikon Neumag,

Systems is quickly and thoroughly

an optimum energy utilization by

the system provider for the textile

removing the emitted materials, while

improving the efficiency of the heatindustry.”

simultaneously controlling the direc-

recovery system. Even at the after-tion of the airstreams. The joints

dryer section, the process air can be

between the hoods are a particularly

improved by an optimum ventilationdifficult area. Thermal bridges cansystem. Furthermore, Voith Paper Air

With the acquisition of Wiessneroccur here, forming so-called dew

Systems provides balanced climate

GmbH, Voith Paper Air Systems haspoints. If the moisture inside the hoodcontrol in buildings where paper ma-

gained years of experience in ventila-condenses quickly, drops may fall onchines are in operation. That preventstion technology, especially for paper

the paper web. At production speeds

corrosion and mold.

production. In one current order forof up to 2,000 meters per minute, thisthe Klingele Papierwerke, for exam-

may result in costly breaks.

Optimum process air is criticalcluding the steam and condensate

Using paper expertise inother industries

ple, the process air technology, inSaving costs with EOS

Voith Paper Air Systems not only

system for the Voith Boost Dryer will
be delivered to the Klingele plant in

The dew points in the paper machine

works in paper production, but also in

Weener, Germany.

hoods made by Voith Paper Air

the field of the food sector and special industries such as textiles, beverages or tobacco. Examples are acooling system for bottling CocaCola and the ventilation in the production facility of a textile producer in
Dubai. “Our goal is to transfer our
extensive process experience in thepaper industry to other industries.
There is still great optimization potential in the production chains of foodstuffs, which have not been exploited.
Particularly for dairy products, improved process technology between
the milk production and the deliveryof the finished product has a great
potential. Here, the integrationof individual process steps and an
improvement in economy can beachieved,” says Dr. Bernard.

Increased dew point in the dryer hoodcuts energy costs

25 I 2008 I Voith Paper I twogether

69

NEWS

Double acting cooling tunnel (interior view)

Cooling tunnel (exterior view)

Voith Paper Air Systems is alreadycisely defined. In addition, optimally

involved in the cooling process forcooled food-stuffs meet the strict ISO

dairy products and its cooling tech-standards for the food industry. And

nology offers clear advantages forlast but not least, every consumer

producers and retailers. For some fa-

benefits from the defined shelf life ofcilities, the cooling of the production

the products they buy.

Voith Paper Air Systems
Since October 1, 2007 Voith Paper Krieger
GmbH & Co. KG, Mönchengladbach and Voith
Paper Air systems GmbH & Co. KG, Bayreuth
form the Voith Paper Air Systems group within
Voith Paper.

temperature can last up to two days.
In the cooling tunnel from Voith Paper

Process experience can also be

Air Systems, complete pallets aretransferred to special areas. In textile

cooled in one to two hours. This

plants, for example, the process air

produces competitive advantages,

must be adjusted to the type of

because the shelf life is not only in-thread. “This is a balancing act. De-

creased, but can also be more pre-pending on the ventilation, a thread
can tear or become supple,” says
Dr. Bernard. Another unusual area ofuse is in belt washers for the tobacco

Automatic belt washer

industry. Here, too, the ventilation
and removal of moisture contribute

Voith Paper is now able to cover the entire
range of air systems products: The know-how
for paper machine hoods, air-conditioning, air
ventilation and heat recovery systems is concentrated in Bayreuth. The specialists for noncontact-drying as well as non-contacting web
guiding systems are located in Mönchengladbach. There are approximately 180 employees
at Voith Paper Air Systems.

Contact
Rainer Pumpe
Voith Paper Air Systems
rainer.pumpe@voith.com

significantly to the quality of the
product. Various products and services round off the portfolio. Thisrefers, for example, to maintenanceas well as measurement tests, single
components and spare parts.

70

Since October 1, 2007 Rainer Pumpe, Vice
President Air Systems, is the responsible
manager for both locations in Bayreuth andMönchengladbach. He is the successor of
Dr. Hermann Bernard, who headed the locationin Bayreuth during the start-up phase.

25 I 2008 I Voith Paper I twogether

REPORT

Mochenwangen paper mill produces FSC certified paper on PM 3

Paper for over 10 million Harry Potter books
The Mochenwangen paper mill, Germany, produced more than
10,000 tons of paper on the PM 3 by Voith for the latest, seventhvolume of the Harry Potter series. The English, German, Italian,
Finnish and Norwegian editions were all printed on the high-quality,
FSC certified paper.
Mochenwangen paper mill is cele-

August to November to complete theexclusively from post-consumer

brating a huge success this year: thepaper production for the German,

waste, i.e. paper that has actuallymost sought-after book in the world

Italian, Finnish and Norwegian edi-

been used. The FSC certification

at the moment was printed on paper

tions. “We produced paper for more

confirms that the wood for paperby the Upper Swabian paper maker.

than ten million Harry Potter books

production comes from sustainable

altogether”, said Dr. Jürgen Helbig,

forest operations – a certificate that

Without resorting to tricks or trickery,

Managing Director of the Mochen-

only a few paper mills can produce.

the PM 3 paper machine by Voith ran

wangen paper mill. “That was a logis-

especially hot, producing at leasttical challenge. After all, we still had

Voith’s PM 3, which was built in 1956

100 tons of paper every day over aother customer orders to fill.” By

and has already been upgraded sev-

four month period for the seventh

moving production onto the two othereral times, is currently being opti-

edition of “Harry Potter”.

Voith paper machines, all orders

mized further, also in cooperation

could be processed reliably.

with Voith. “The PM 3 is an absolutely

Paper production for the English edi-

stable machine, which produced reli-tion, which was launched on 21 July

The seventh volume about the like-

ably during the Harry Potter phase.

2007, began in May and took until

able wizard is so far the most forest

We now want to develop it further to

10 July. During this period, three toand environmentally friendly book of

enable us to specialize increasingly

five truckloads had to be transported

all time. Author Joanne K. Rowlingin volume paper for books,” explains

every day to the printer in England,

took it upon herself to ensure thisDr. Helbig. The PM 3 currently has

where the rolls of paper had to be

was the case. The FSC certified

an output of 35,000 tonnes perdelivered punctually in 30-minutepaper has a considerably high recy-year but this will soon be 45,000 totime slots. The paper mill took fromcled paper content, which must be

50,000 tonnes per annum.

Left: Harry Potter
volume 7 in English
and German version
Right: Dr. Jürgen
Helbig, managing
director of Papierfabrik
Mochenwangen withvolume 6.
Also “Harry Potter andthe Half-Blood Prince”
has already beensuccessfully producedon PM 325 I 2008 I Voith Paper I twogether

71

REPORT

The dancing lion wishing Voith Paper China a bright andprosperous future. From left to right: Ming Ming Liu, President
Voith Paper China Co., Ltd.; Dr. Hermut Kormann, President andCEO Voith AG; Dr. Hans-Peter Sollinger, President Voith Paper

Dr. Hermut Kormann, President and CEO Voith AG,
giving his welcome speech at the opening ceremony

Building the Voith Paper City in Kunshan

Opening of new Technology and Service Center in China
Some 70 years after Voith Paper delivered the first paper machine
to China, the company and its customers reached another important milestone on October 26, 2007 in Kunshan, China. The grandopening of Voith Paper’s new Technology and Service Center in
China enables Voith to better serve its customers’ needs in the
rapidly growing Chinese and Asia/Pacific markets.

Dr. Hermut Kormann, President
and CEO Voith AG, awakens the
sleeping lion, a traditional Chinesesymbol for having a blessed andprosperous future

72

Over 150 valued customers fromthe new facility is designed as the

China and Asia/Pacific joined top-

manufacturing epicenter for all Voithranked government officials, Voith

Paper operations in China, consisting

executive board members and localof over 70,000 square meters of pro-

employees to celebrate the inaugura-duction and office space. The totaltion of the phase one buildings in theinvestment accumulates to 50 million

widely anticipated “Voith Paper City.”Euro.

Located near metropolis Shanghai in

By October 2008, Voith Paper will

the hi-tech industrial park of Kunshan,complete the second phase of

one of China’s fastest-growing cities,

construction on the “Paper City”,

25 I 2008 I Voith Paper I twogether

REPORT

Ribbon cutting of Voith Paper’s top customers and Voith management (from left to right):
Jackson Huang, Representative of APP; Dr. Hans-Peter Sollinger, President of Voith
Paper; Xuerong Zhou, Deputy Mayor of Kunshan City and Director of the Kunshan New
and Hi-Tech Industrial Development Zone; Dr. Hermut Kormann, President and CEO of
Voith AG; Fengquan Zhu, Standing Member of the Communist Party of China – Kunshan
Committee; Yin Zhang, President of Nine Dragons Paper Group; Jianhua Li, Presidentof Huatai Paper Group

allowing for Voith Paper Fabrics andPaper to sharpen its profile as the

China, the President of Nine Dragons

Voith Paper Rolls to move from their

only full process supplier and tech-

Paper Group, Yin Zhang, the Presi-

current location in Kunshan to thenology leader for the paper industry

dent of Huatai Paper Group, Jianhua

new site. Voith Paper Fabrics has

in China and across the globe.

Li, and Jackson Huang as represen-

employed local citizens at its paper

tative of APP helped Voith Papermachine clothing plant for the last

“We are proud to celebrate the open-

usher in its historic new era in China

decade. In 2003, Voith Paper Rolls

ing of this new Technology and Ser-by participating in the ribbon-cutting

arrived at the Fabrics location andvice Center, which we built to better

ceremony. The distinguished dais

established a separate service centermeet our customers’ needs in a

noted that China currently has thefor roll covers.

region that continues to see tremen-most advanced and efficient paper

dous growth for our business,” said

machines in the world, and that thisThrough hosting all of its seven divi-

Dr. Hans-Peter Sollinger, President ofwould not have been possible without

sions under one roof, Voith Paper isVoith Paper. “Voith is strategicallysuch a trusted and reliable partner

creating a veritable hub of papermak-

positioned at the forefront of China’s

as Voith. A big kudos at the end of aing knowledge and available exper-transformation into a global paper-very successful opening ceremony.

tise for its domestic and international

making giant. This enhanced pres-customers. Providing a comprehen-ence is a testimony of our commit-

sive portfolio of system solutions,ment to support Chinese paper-products and services in a moremakers in taking the lead in the global

focused and efficient way is critical topaper business.”meeting today’s growing customer
demands. This consolidated, verti-

Prominent customers from the paper

cally integrated model enables Voith

industry like the richest woman in

25 I 2008 I Voith Paper I twogether

Contact
Dr. Andreas Sachs
Fabrics
andreas.sachs@voith.com

73

NEWS

Left: Book
restoration.
Right: Water
treatment inBrazil – morein “The Roleof Paper”

New paper book of interest to both laypeople and experts

Customer magazine under
new leadership

The Role of Paper

Change of staff in
the twogether editorial
office“The finest paper that I can remem-

ment of the Frankfurter Allgemeine

In October 2007, Dr. Wolfgang Möhle,ber since my youth was the paper

Zeitung. In 2006, Georg Küffner

who had been head of Corporate

from ...,” writes Martin Mosebach inedited the first book in the Voith

Marketing at Voith Paper for 10 years,

one of eight short stories about

series, “The Power of Water” on thewent into well-earned retirement.

paper. Martin Mosebach was recently

energy market. “The Role of Paper” isAfter 24 issues, he has handed theawarded the most prestigious Ger-

not just for experts, but will also give

scepter on to Stefanie Weber. Whenman literature prize, The Georg-“paper laypeople” with a clear and,the idea for the twogether magazine

Büchner Prize. You can learn what

above all, entertaining overview of all

first arose, Dr. Möhle enthusiasticallypaper so fascinated Mosebach in

aspects of this fascinating material.

worked for its realization and took on“The Role of Paper”. The book will

Twelve conversations with people

the role of editor-in-chief with the first

appear in December 2007 in Germanfrom the world of paper, such as a

edition, which appeared in December

and English from the Deutsche Ver-

Scandinavian logger, a restorer of old

1995. In his twelve years, with the ap-

lags-Anstalt and will be available inbooks, and an environmental activist

pearance of 24 twogether editions

bookstores. The editor of the second

provide readers with interesting in-and several special editions, thebook on Voith’s markets is once againsights. And don’t forget, you will also

regular readership grew by a factor ofGeorg Küffner, member of the tech-learn more about Martin Mosebach’s

four, so that today twogether appears

nology and motor editorial depart-

favorite paper.

in five languages with a total run ofover 35,000 copies per edition.
Stefanie Weber, who has alreadybeen involved in Corporate Marketingat Voith Paper for more than five
years, has taken on the responsibility
for the established twogether magazine with this edition. We wish bothof them success and fulfillment in the

Available inbookstores as ofDecember 2007

future – Dr. Möhle in retirement andStefanie Weber in her new and interesting job.

74

25 I 2008 I Voith Paper I twogether

NEWS

Support for eight European

EcoPack – an innovation

Voith Siemens Hydro Shanghai

General Motors assembly plants

package for rail vehicles

wins largest-ever order from China

Major contract
goes to Voith Industrial
Services

Drive in and out of thestation emission-free

Order value
EUR 120 million

Voith Industrial Services has won a

Saving resources, minimising emis-

Voith Siemens Hydro Power Genera-

major contract from General Motors

sions and reducing noise are threetion in Shanghai has won a contract

Europe (GM) to provide services forvery specific areas where Voith Turbofor the delivery of the electro-mechan-eight European assembly plants in

has a clear positioning as an innova-

ical equipment for Jinping II hydroGermany, Great Britain, Sweden,

tive system supplier. The EcoPack

power station on the Yalong River in

Poland and Spain for the next three

applies seven separate innovations to

the Chinese province of Sichuan.

years. It is the largest order ever for

demonstrate the technical opportuni-

The order is worth approximately

Voith Industrial Services in the auto-

ties offered by hydrodynamic drive

EUR 120 million, making it the larg-

motive industry.

technology. It makes the complete

est-ever deal for Voith Siemens Hydro

drive systems for rail vehicles even

Shanghai since the company’s estab-This is the first time that GM has

more economical and even more eco-

lishment in 1994. The order wasawarded a standardized service

logical. At the same time the EcoPack

placed by Ertan Hydropower Devel-

package across different plants andmeans that Voith already meets future

opment Co. (EHDC).

countries. The contract is a pioneer-

standards for emissions and con-

ing move in the European automotive

sumption in the railway industry.

industry. The benefits for General

The contract marks the kick-off of amajor hydro power development

Motors include greater transparency

The seven innovations are hydrostaticalong the Yalong River, China’s

and optimization of costs and servic-

recuperation, the Voith SilentVent, an

fourth-largest source for this type of

es. The contract covers technicaladaptive suspension, SteamDrive, aenergy generation. Located at thecleaning, janitorial cleaning and ser-diesel particle filter with regeneration

lower reaches of the river, Jinping II

vices for external facilities.

burner and integrated vaporiser, opti-

has a total capacity of 4,800 MW and

mised sound proofing skirts and theis therefore the largest of the fiveTo accomplish this, colleagues fromnew electronic control unit VTDCeco.

hydro power stations on the Yalong.

Voith, DIW and Premier are working

This mix of new developed compo-

It will be equipped with eight Francis

closely together. GM always has thenents brings enormous advantages toturbines, each rated at 600 MW. The

same contract partner for a multitude

the future operator of a vehicle.

power station has a maximum headof services. These are carried out inof 318 meters and, running along

all locations to the same quality

17 kilometers, its penstock is one ofstandards.

the longest in the world.

25 I 2008 I Voith Paper I twogether

75