Wind power

Tooling solutions for all components and allmaterials from one source• application specific tool materials and coatings• innovative geometries for highest accuracy and quality• intelligent special solutions for special requirements• standard tools for numerous tasks

High-tech at the service of the environment
Wind power is growing - in every sense. Not onlyis the number of farms rising steadily but wind
power stations are ever increasing in size andcan now also be found in the sea. All this is only
possible with high-tech materials capable of withstanding the enormous stresses. The machining
requires a know-how that Guhring has on offer:• high-strength steels, cast materials and GRP are
the demanding materials used for manufacturing
the up to 135 m high towers, the gondola, theinner workings as well as the up to 63 m long rotor
blades - typical materials suitable for machining
with Guhring tools. World-wide Guhring toolingsolutions are applied for these materials, i.e. in theautomotive industry, the mechanical engineering
industry, the aerospace industry and in power plant
construction.
• highest accuracy is necessary for wind powerstations to generate power safely and in to thefuture. µ-precise holes, perfect surface finishes
and accurate threads are the domain of Guhring
precision tools. For decades they have ensured
that, for example, high-performance engines,
turbines and machines, literally run like clockwork.

• quality of the highest standard is not only the targetof the manufacturers of wind power stations andthe requirement of the authorities for the approvalof such stations but with Guhring the quality ofthe products is first priority. This is confirmed bynumerous certifications and audits by recognised,independent institutes or renowned customers andby the comprehensive quality assurance measures
within our tool production from the analysis of raw
materials to process monitoring and final inspectionof the finished tools.
• for manufacturers of highly specialised products
such as wind power stations advice and service
is an absolute precondition for the optimisationof their production and products. Guhring is
the competent partner for this with all toolingexpertise from one source. From tool material andgeometries to coatings and application advice,
Guhring has at its disposal a unique know-how oftool and process optimisation thanks to its own
R&D and manufacturing capabilities as well as
experienced application engineers. In addition,
Guhring services can relieve our customers of toolprocurement and management.

Complex technology in gigantic dimensions make wind
power stations into powerful, modern, environmentallyfriendly energy suppliers. Guhring supplies the highquality and highly accurate tools tor the manufacture ofthese demanding stations. A comprehensive service fromthe development and application advice up to the toolprocurement and management makes Guhring a strongpartner in the wind power industry.

ARotor blade

BRotor hub

C

Drive/gear unit

DGondolaETower with base plate

High load by wind and weather as well as
enormous forces produce the wind powerstations‘ ecological electricity. Guhring tools
contribute with efficiency, accuracy andquality.
The manufacture of rotor blade, rotor hub,drive/ gear unit, gondola and tower as well as
the necessary connections between thesecomponents requires numerous highly-accurate
machining operations. Precise holes with perfectsurface finish, load-bearing threads, accuratelymilled  surfaces and grooves, accurately fitting
countersinks or cleanly de-burred hole entries andexits are tasks for which Guhring precision tools
offer the perfect solutions.
Tool material, coating and geometry are adapted
to the requirements of the machining task andthe material to be machined. This also includes
innovative solutions such as µ-accurate adjustable
tools and tool holders. Thus, Guhring tools guarantee long-term maximum machining quality.
In addition, Guhring‘s MQL system even makes
production environmentally friendly!

ABCED

A

Rotor bladeThe attachment of the rotor blades to the rotor
hub is one of the highly stressed areas of wind
power stations. It requires accurate holes andload-bearing threads for the rotor blade andmounting bolts.

For every task the right solution:
Whether in GRP or high-tensile steel.
For small or large hole or thread
diameters - Guhring already holds a
multitude of solutions in the standard
range and develops made-to-measure

For the large holes to hold the mounting bolts in
the rotor blade made of GRP a powerful solution
is available with Guhring‘s T800 interchangeableinsert drilling system for holes up to maximum
100 mm diameter. With a PCD corner-tipped
solid carbide drill the holes are produced for thepassage of the threaded rods with which the rotor
blade is anchored to the hub.
For machining the high-tensile steel mounting
bolts, solid carbide drills from Guhring‘scomprehensive standard range are applied as well
as solid carbide special step drills. The productionof threads in the bolts is carried out with standard
fluteless taps for the small as well as special taps
for the large threads.

special tools for the machining ofrotors.

BRotor hub

The rotor hub including ring and flange areexposed to extreme mechanical loads. Primarily
high-tensile steels and cast materials are applied
which Guhring offers special tooling solutions forthe machining of.

Innovative tooling solutions for
optimal results:
Guhring‘s specialists for thedrilling and milling operations
offer special avantages for themachining of steel and cast

The interchangeable insert drilling system HT 800 WP
is available as a standard tool for holes up to 25.99mm and as a special solution for holes up to 39 mm
diameter. Special interchangeable inserts for themachining of steel or cast iron adapt the HT 800 WP
system perfectly to the material to be machined.
As a specialist for the machining of cast iron, Guhringprovides the Ratio drill RT 100 R with patented radiusgeometry. It is applied as a standard tool but also as aspecial tool, i.e. for very deep holes.
Guhring RF 100 U and RF 100 SF high-performanceend mills with unequal helix are the ideal solution
for the milling operations on the rotor hub, ring andflange. Their special geometry allows maximum
machining performance together with highest surfacequality.

iron thanks to unique, patentedgeometries.

The machining of steel and cast materials like thedrive, gear unit, gondola and tower are the ideal
tasks for Guhring tooling solutions.

CDrive/gear unit

DGondolaE

Tower with base plate

From standard to special:
Guhring tooling solutions
offer highest quality andaccuracy for demanding

Steel and cast machining are the classic domain
for Guhring tools. In the standard range you willfind intelligent and innovative solutions such as theHT 800 WP interchangeable insert drilling system,
cast iron specialist RT 100 R with patented radiusgeometry, the spiral-fluted deep hole drill RT 100 T fordrilling depths up to 40xD, RF 100 high-performanceend mills, HR 500 high-performance reamer ortaps, fluteless taps and thread milling cutters for a
multitude of thread types and sizes.

machining tasks.

Together with our customers we develop application
specific tools for drilling, reaming, countersinking andmilling operations as well as for thread production.
Complex combination tools reduce tool set-up andmanufacturing costs by intelligently combining several
operations into one tool. Highest quality and accuracy
ensure innovative solutions for fine tool adjustments.

Guhring services with know-how
Guhring is one of the world‘s leading manufacturers
and suppliers of rotary cutting tools. In excess of 100
years of know-how in tool manufacture as well as
our own competence centres for tool development,
tool materials and coatings enable us to continuallydevelop outstanding tooling innovations. At the centreof these activities is always the customer and his
request for efficient, economical and practice-orientedtools.
As we see ourselves as a complete supplier for all
machining matters, we also offer our customers
up-to-date and market-oriented services relating tothe application of tools. Our service division provides
services from re-grinding and re-coating to complete
Tool Management concepts:

Only professional re-grinding and re-coating
guarantees a consistently good performance of thetool for its entire tool life. With the current high-techtools this requires as much know-how as with thetool manufacture. In our service centres we offer ourcustomers a highly qualified re-grind and re-coating
service. This service is complemented by a collection
and a delivery service.
Our Tool Management Service begins with praticeoriented advice and support to optimise yourTool Management and via the required hardware(automated tool dispensing systems, GISS shrink
fit systems) as well as software (Guhring ToolManagement software) results in part or complete
ownership of your Tool Management.

Guhring oHG

146 981/10157-XI-05 • Printed in Germany

P.O. Box 10 02 47 · D-72423 Albstadt
Herderstr. 50-54 · D-72458 Albstadt
Telephone: +49 74 31 17-0
Fax:
+49 74 31 17-21 279
info@guehring.de
www.guehring.de