C 400
www.hermle.deMilling at its best: Hermle machines are often at the forefront
when it comes to optimized results.
The proverbial Hermle precision in combination with process
consulting and project management has made us an important
machine manufacturer in nearly all key sectors: From large
complex components to the very smallest components
in the high-tech sector. Versatile applications, uncompromising
results Hermle – the original.

Contents.

01
Industry sectors

402
The machine

603Technical data

23

04
Precision

28

05
Energy efficiency

29

06
Services

30

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01
Industry sectors
Hermle is at home in all sectors. For us, ensuring the highest precision and reliable machiningis always paramount. Our machines are built for daily use.

Machine construction

Precision mechanics

Medical engineering

Energy technology

Aerospace industry

Automotive industry

Tool and mould construction

Subcontractor industry

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02
The machine
The C 400: a dynamic machining center designed for entry-level 5-axis/5-side machining.
Features galore to ensure high-precision, economical parts production.

TECHNICAL DATA
Traverse path X-Y-Z:

850 – 700 – 500 mm

Speed:

15000 / 18000 rpm

Rapid linear traverses X-Y-Z:

35 m/minLinear acceleration X-Y-Z:

6 m/s2Control unit:

iTNC 530 / TNC 640

Rigid clamping table:

1070 x 700 mm
2000 kg

Max. table load:

Swivelling rotary tables:
Machining table with worm:
Swivelling range:
A-axis speed
One-sided drive:
C-axis speed:
Max. table load:Ø 440 mm
+91° / -139˚

Ø 650 x 540 mm+91° / -139˚

25 rpm30 rpm
400 kg25 rpm30 rpm
600 kg

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02.1
New dimensions in dynamics

3 axes in one tool for
workpiece-independent dynamics

Pickup magazine integrated
into the base bodyto save space
Stainless steellining of entire
working area
Optimized chip ejection
in working area
during dry machining

Force characteristics:
3 guideways with one guideshoe for ideal force balance
Linear axes above
the working area
Modified gantry
design with optimum
main axis support

Swivelling range ofswivelling rotary table+91° to –139°

Worm gear (C-axis)

Largest working area
relative to the
support surface

One-sided drive (A-axis)
Avoidance of torsion andhigh accuracy

Accessibility,
excellent ergonomics

Mineral casting design
with excellent vibration damping properties

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02.2
The workpiece
Many important points must be observed in order to guarantee that every workpiece is machined perfectly. For this reason, Hermle has been working on perfecting and optimizing themachining process for many years. This is the reason that the C 400 is now equipped with:- the largest working area relative to the installation area.
- the largest swivelling range of workpieces in the working area.
- utilization of the entire traverse range.
- a large collision circle between the table flanges.

THE WORKPIECE DIMENSION- Unlimited crane top loading to above the table center-	When loading the crane the tool spindle moves to the tool magazine –this means the working area is completely clear and accessible

3-axis5-axis850 x 700 x 500 mm

Ø 650 x 500 mm

max. 2000 kg

max. 600 kg
Collision circle: Ø 885 mm

02.3
Ergonomics
Built for daily use: The Hermle C 400 can be ergonomically adapted for every machine
operator for optimum ease of use, simple operation and uncomplicated maintenance.

HIGHLIGHTS- Ergonomic control panel:		 - Adjustable height +/- 100 mm (Option)
		 - Tilting screen 5 - 35° (Option)
		 - 19“ screen
		 - Control panel pivotable from				 the tool loading point to the working area
- Optimum loading height- Crane loading possible-	Minimum interval between machining tableand operator- Large door opening

Door opening 900 mm
Vertical table clearance 625 mm
Loading height 925 mm
Control panel, pivotable
Screen pivotable
by up to 30 °C

Practical,
slide-in storage

Control panel+/-100 mm
height adjustable

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02.4
Table variants
Hermle's swivelling rotary table has revolutionised the concept of 5-axis machining.
The C 400 also relies on 5-axis operation, and the swivelling rotary table with worm
gear makes full use of its advantages. All machining tables are manufactured exclusively
and entirely at our plant in Gosheim.

TECHNICAL DATAHigh degree of freedom in working area
- Very high table loading (up to 2000 kg with the highest accuracy)- No accumulation of chip on the swivelling rotary table (swivel table)- Swivelling axis A and rotary axis C are located within the workpiece (U-shape)- Wide flange spacing results in a very large collision circle in the working area
- High swivelling range for undercuts

Worm table- Generously dimensioned worm gear
- Low torsion attachment- Direct, absolute measuring system

DRIVE TECHNOLOGY- Centrical table load
- Drive directly on table housing = low torsion A axis
- Direct, absolute measuring system- Good maintenance accessibility- A axis integrated in machine bed

One-sided drive- Mechanical drive on right of table housingby

H E R ML E

Uncompromised perfection: this drive design accesses the gearwheel on the table housing
directly and so completely eliminates shaft torsion on the swivelling rotary table. This is the
only way to achieve the highest precision.
Made in Germany – made in Gosheim: The C 400 table variants stand for the highest
quality and optimum material usage from the cast housing to the installed gear motors.
At our main plant in Gosheim, these swivelling rotary tables are laying the foundations
for the precision, accuracy and quality of the machined surfaces.
Hermle's swivelling rotary tables are equipped with cutting-edge drive technology for highdynamic during 5-axis machining as the slowest axis determines the speed of 5-axis simultaneous milling. High-torque motors and the adapted gear can position loads of up to 600 kg
rapidly and, most importantly, with exceptional precision.

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Rigid clamping table
Clamping surface: 1070 x 700 mm
Equipped with the rigid clamping table, the machine can deal with clamping weights of up to2000 kg – ideal for 3-axis machining of large, bulky and heavy workpieces.
T grooves: parallel 10 / 14 H7

Clamping surface:
T grooves:
Max. table load:		1070 x 700 mm
parallel 10 / 14 H72000 kg

Swivelling rotary table
Drive type C axis: Worm
The "Worm" swivelling rotary table provides the ideal entry into 5-axis technology.

Secondary clamping plates . 920 x 490 mm

Clamping surface:
T grooves:
Swivelling range:			
Drive type - rotary C axis:
Speed rotary axis C:
Speed swivelling axis A:
Max. table load:		
Secondary clamping plates (optional)
T grooves:Ø 440 mmparallel 5 / 14 H7+ 91° / - 139°worm
30 rpm25 rpm
400 kgClamping surface:
T grooves:
Swivelling range:			
Drive type rotary axis C:
Speed rotary axis C:
Speed swivelling axis A:
Max. table load:		

Ø 650 x 540 mm
parallel 7 / 14 H7+ 91° / - 139°worm
30 rpm25 rpm
600 kgparallel 7 / 14 H7

1415

The C 400 is equipped with two-part tool spindles. Both spindle components can be replaced
quickly and easily when servicing.
With the different speed ranges and tool holding fixtures the tool spindles are suitable for awide variety of machining tasks. Like the machining tables, all tool spindles are manufactured
exclusively and entirely at our plant in Gosheim.

TECHNICAL DATA
- High-tech tool spindles for demanding milling processes- Slim-end tool spindle for machining deep cavities- Few projecting edges (prevention of collision)- Two-part tool spindle (faster, easier replacement)-	Collision protection (collision sleeves) prevents damage
in 50% of collisions

Collision protection with collision inquiry
Each tool spindle has several collision sleeves which
compensate collision energy in the Z direction.

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02.5
Tool spindles

ERML

E

Tool spindle 15000 rpm
M [Nm]P [kW]
201308615000 rpm

Output 20% c.d.f.:		

20 kW

15

Torque 20% c.d.f.:		

180 Nm10

Tool holding fixture: 		

SK 40 / HSK A 63

Tool spindle:		

two-piece

Collision protection:		

collision sleeves

Maximum spindle speed:		

18000 rpm

Output 20% c.d.f.:		

20 kW

Torque 20% c.d.f.:		

180 NmTool holding fixture:		HSK A 63

Tool spindle:		

two-piece

Collision protection:		

collision sleeves

20 %

180

Maximum spindle speed:		

40 %
100 %

9,0
6,8
5,3

110

1100

15000 n [1/min]

Tool spindle 18000 rpm
M [Nm]P [kW]

20
15
13
10
20 %

180
130
86

40 %
100 %

9,0
6,8
5,3

110

1100

18000 n [1/min]

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02.6
The tool magazine
The C 400's tool magazine holds up to 38 tools in the standard version and is integrated
into the machine bed to save space. It can be filled from the side by swivelling the control
panel to the loading point.

TECHNICAL DATA
Pick-up magazine
Integration into the machine bed
Excellent accessibility
Control panel pivotable to the loading point
Tool changer (pick-up)
Interface:
Magazine pockets:
Max. tool weight:
Max. tool diameter:
Max. tool length:
Max. magazine load:
Chip-to-chip time:

SK 40 / HSK A 63
38
8 kg
Ø 80 with corresponding adjacentpocket allocation Ø 125 mm
300 mm152 kgapprox. 6 s

Additional tool magazine ZM 50
Magazine pockets:
50
Max. tool weight:
8 kg
Max. tool diameter:	Ø 80, with corresponding
adjacent pocket allocation
Ø 125 mmMax. tool length:
300 mmAdditional tool magazine ZM 88 k
Magazine pockets:
88
Max. tool weight:
8 kg
Max. tool diameter:	Ø 80, with corresponding
adjacent pocket allocation
Ø 125 mmMax. tool length:
300 mm

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02.7
Control unit
The C 400 can be fitted with a Heidenhain iTNC 530 or TNC 640. The control unit provides
diverse program functions. Hermle simplifies programming and operation still further withcomprehensive extra features.

Heidenhain
Heidenhain TNC 640- The TNC 640 comes with all the following functions of the
iTNC 530- Dynamic Efficiency (Option) – Active Chatter Control (ACC),
Adaptive Feed Control (AFC), trochoidal milling- Dynamic Precision (Option) – Cross Talk Compensation (CTC),
Active Vibration Damping (AVD)

Heidenhain iTNC 530 HSCI
- 19" TFT colour flat screen- 	Keyboard unit with full keyboard, integrated trackball, USB and
Ethernet interfaces- Fully digital with HSCI interface and EnDat interface- Programming in Heidenhain plain text, with smarT.NC* or per
DIN/ISO- Standard drilling and milling cycles- Touch probe system cycles- Free contour programming- Special functions for fast 3D machining- Automatic calculation of cutting data
- Software option Kinematic Opt (Measurement cycle for
improving accuracy of rotational and swivelling operations)

For further advantages and detailed technical data, please see the Heidenhain brochures.
*for iTNC 530 only

Hermle setups
Standard

Heavy duty machining

High production

Standard

Heavy duty machining

Production- Standard setting.
-	Switches back to the standard setting
after a different setup has been used.

-	For roughing in conjunction with highmilling power.
-	Greater machining performancepossible thanks to reduced machine
vibration (depending on the tool andthe selected technology data).

-	Used for quicker machining with
programs which have many cycle calls
or subprograms.

Hermle control tools
Hermle "Tool Management Control"
Simple, Hermle tool management
system for Heidenhain control units.
Hermle "Wear Diagnosis System"
Machine status is continually monitoredby the Hermle wear diagnosis system.
It facilitates rapid machine diagnostics
and status-oriented detection ofmaintenance tasks.
Hermle „Information-Monitoring-Software“The "Information-Monitoring-Software"
displays the live status of the machinesand communicates the events.

3D contour tolerance max.

3D contour tolerance min.

3D path smoothing

3D contour tolerance max.

3D contour tolerance min.

3D path smoothing-	For 3D roughing with low machining
performance.
-	Very high machining speed, mainly forfree-form surfaces.

-	For very high demands of machining
accuracy, mainly for free-form
surfaces.
-	Can also be used with conventional
programs.

-	For very high demands on the surface
quality, mainly for free-form surfaces.

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02.8
The details
The C 400's details are packed with know-how. All attachments and operating devices of
the C 400 have been smartly optimized for users and designed specifically for respective
machining tasks.
The machining center can be transported without any disassembly and set up without afoundation. Furthermore, all units are arranged for easy maintenance and servicing.

Space-saving chip conveyor arrangement

Chip drawer

HIGHLIGHTS
Comprehensive fluid technology
Optimized chip management
Diverse cooling lubricant units

Chip conveyor

Scraper belt conveyor
Hinged belt conveyor
We provide the correct methodof chip removal from the working
area for all kinds of chip

Chip conveyor with internal cooling lubricant supply ICS 40

03
Technical data . C 400

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03.1
Technical data . C 400
Working area

Traverse

X axis

850 mmTraverse

Y axis

700 mmTraverse

Z axis

500 mm

Rapid linear traverses

X-Y-Z

35 - 35 - 35 m /minLinear acceleration

X-Y-Z

6 m/s2

Linear feed force

X-Y-Z

7000 NMax. vertical table clearance

625 mmMax. workpiece diameterØ 650 mmMax. workpiece height

500 mmCollision circle (A axis) in 0° position

Main spindle driveØ 885 mm

Speed
Main power/Torque

15000 rpm
20% c.d.f.

SK 40 / HSK A 63
20 kW / 180 Nm

Speed
Main power/Torque18000 rpm
20% c.d.f.

HSK A 63
20 kW / 180 Nm

Control unit

Heidenhain

Tool changer (pick-up)

Magazine pockets

38 items

Chip-to-chip time

approx. 6 s

iTNC 530 / TNC 640

Maximum tool length

300 mmMax. tool diameterwith corresponding adjacent pocket allocation

Ø 80 mm
Ø 125 mmMax. magazine load

Extension of tool storage
capacity

152 kgAdditional tool magazine ZM 50

additional 50 pockets

Additional tool magazine ZM 88 k

additional 88 pockets

Max. tool diameterwith corresponding adjacent pocket allocation in additional tool magazine
Max. tool weightØ 80 mm
Ø 125 mm
8 kg

Chip drawer

Removable chip drawer

Chip conveyor

Scraper belt or hinged belt conveyor
Ejection height
Chip cart

Internal cooling lubricant supply
with paper band filter

Capacity of standard tank

250 l

Capacity of cooling lubricant tank

570 l

Pressure (manually adjustable up to)1100 mm450 l

max. 40 bar /26 l/minTable variants

Swivelling rotary table

Ø 440

Ø 650

Rigid
clamping table

Clamping surface

Ø 440 mm

Ø 650 x 540 mm

1070 x 700 mm

Swivelling range+91° / -139°+91° / -139°-

C axis drive mode

Worm

Worm

-

Swivelling axis A speed:
One-sided drive

25 rpm25 rpm-Speed rotary axis C:

30 rpm30 rpm-Max. table load
One-sided drive

400 kg

600 kg2000 kg-

T grooves parallel

5 / 14 H7

7 / 14 H7

10 / 14 H7

920 x 490 mm
7 / 14 H7--Secondary clamping plates
T grooves parallel

Positional uncertainty

P in X-Y-Z axes according to VDI/DGQ 3441

0.008 mm(calculated at a constant ambient temperature of 20 °C +/-1 °C.
Our products are subject to the German Export Law and requireauthorization since the attainable precision may be less/greaterthan 6 µm.)

Hydraulics

Operating pressure

Central lubrication

Minimum grease lubrication quantity

Connected loads (machine)

Mains connection
Power consumption
Compressed air

Weight(standard version without optional extras, attachments, workpieces and cooling lubricant)120 bar

400 V / 50 Hz
34 kVA
6 bar
approx. 9.5 t

Included in standard delivery
Available upon request

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03.2
Options
The C 400 is prepared for anything: numerous optional extras make machining even more
efficient and powerful in real applications and enable you to optimize your work with themachining center still further.

C 400 standard machine dimensions
1 Machining center2 Emulsion mist extractor
3 Chip drawer
2

2350
3050

1900

1730

3060

C 400

1

140

3

2
1
120

2940

620

560

2310

370

Options- Automatic cabin door
- Automatic cabin top- Blow-off unit
- Control panel height adjustable- BDE signal-	Blow air through spindle
centre- Dynamic Efficiency- Dynamic Precision- Elec. manual control module- Elec. heat compensation- Emulsion mist extractor-	Internal cooling lubricant
supply- Touch probe with preparation- Rotating transparent window- Signal tower- Chip conveyor- Coolant nozzle- Chip cart
- Sealing air for scales- Laminated safety glass panes- Button preparation-	Tool breakage monitoring/measuring- Additional tool magazine- 6x rotary feedthroughC 400 dimensions . Additional tool magazine ZM 50 / ZM 88 k

2

1

1730
2350
2860
3050

3060

C 400

7

6

1 Machining center2 Emulsion mist extractor
4 Chip conveyor
5 Chip cart
6	Internal cooling lubricant
supply7	Additional tool magazine
ZM 50 / ZM 88 k

2000

3510

5
4

3900

7

2

1
120

1290
970

560

2940

6

620

980

2310

370

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Precision

ig h

PRECISION IN EVERY DIMENSION: Hermle has a thorough understanding of the requirements for manufacturing high-precision
machining centers for processing smaller and larger workpieces of up to 2.5 t in weight. For this reason, "The Original" only uses
German machines for production and materials from European suppliers.
Furthermore, the entire machining production department is fully air conditioned and kept clean by a central chip disposal
system.
Hermle machining centers have also been thoroughly tested by intensive endurance tests and in manufacture-oriented
machining processes in our own machining manufacturing department. Our meticulous manufacturing processes allow
Hermle to set new precision standards which undercut those demanded by the DIN/ISO 10791 standard in every way.
At Hermle, we distinguish between positional uncertainty (accuracy with which a certain position within the working area
can be pinpointed on one axis) and geometric precision.
The latter is significant for the precision of the entire machine – it encompasses the following factors:- Positioning of linear and rotary axes.
- Straightness and angular deviation of the linear axes.
- Rectangularity and parallel alignment of all axes to one other.
- Concentricity and axial run-out of the swivelling rotary table.
- Concentricity of the working spindle.
The precision of Hermle machining centers originates during mechanical production and is not produced by subsequent electronic compensation.

PRECISION LEVELS
Hermle standard:
X-Y-Z: Positional uncertainty P ≤ 8 µ
A: Positional uncertainty P ≤10"
C: Positional uncertainty P ≤ 8"

+y

+x

Run 1
Run 2
5.0 µm / scale div.
Ovality test of a standard machine

05
Energy efficiency
Both manufacturer and customer benefit from efficient production processes. Therefore,
Hermle has focused on integrated resource sustainability and energy efficiency for many years.
We can rightly claim pioneer status in the "bluecompetence" initiative founded by the VDW(German Machine Tool Builders Association).
From development to low-energy manufacturing (with a high level of in-house production) tothe operation of CNC machining centres – Hermle has stood for a principle of sustainable
environmental protection combined with economic considerations for many years. Energy
recovery is just one of the advantages enjoyed by our customers.

EFFICIENTMANUFACTURINGEFFICIENT OPERATION

We use energy efficient manufacturing methods
not because it is the current trend or because it isrequired of us, but on principle. And we always have.

Our machining centers are energy efficient bothduring their manufacture and during operation.

Low energy component manufacture- Mineral casting technology- Lightweight construction
Virtual machine optimization /machine development
Reduction of transport energy consumption- High levels of in-house production- Just one production plant- Locally sourced components
		 and materials- No material tourism
High-quality, high-efficiency components- Ball screws- Guideways- Antifriction bearing etc.

	Energy recovery has been standard at
Hermle for over 20 years
High quality servo axes
Ideal drive design for the respective
application
Demand-based cooling technology bothfor dimensioning and in application
De-energize system:
Up to 80% less energy consumption
in stand-by mode
Very long machine service life

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06
Services
The perfection we insist on for the development and production of our machines is also
mirrored by our service department. Our service team provides more than just spare parts andrapid response support within hours. At Hermle, we see ourselves as a comprehensive service
provider which provides customers with numerous benefits.
Alongside standard services, these include:-	Our superior, cost-effective, practical and flexible training programs carried out by sales
representatives directly at the customers' premises.
-	Our continual pursuit of optimization and perfection. Our motto – those who stop improving
today will not make the grade tomorrow.
-	Intensive expert consultation on milling in general, programming and handling of our products.
-	Our application technicians who are experts in machining processes and who are quick to
assist and advise our customers.

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Maschinenfabrik
Berthold Hermle AG
Industriestrasse 8-1278559 Gosheim, Germany
Phone +49 (0)7426 95 - 0
Fax +49 (0)7426 95 -1309

Subject to technical modifications . 06/16/C400/1500/EN/ST

info@hermle.dewww.hermle.deThe machining examples used in this leaflet are published with the explicit and kind permission of our customers.
The information in this brochure only contains general descriptions and/or performance features that, in a
concrete application, may not always apply in the form described or represented here or may have changed due
to further development of the products. The performance features desired shall only be binding if they havebeen expressly agreed upon in writing at the time of the contract. The machines shown may incorporate options,accessories and control variants.