kaltwalzen_C9T

A9 & A9T

cold forming machines

Benefitting from the modular system, all machines of the A-Series can be ideally configured to suit your specific requirements.

A-Series machines can be equipped with different GROB cold forming technologies like for example the intermittent forming, the conventional cold rolling or the stroke stamping process.
There is also the possibility to combine different forming technologies

BENEFITS

- Combining of forming technologies
- Very short forming cycles
- Extremely high process stability
- Versatile usage, very short changeover times
- Ease of service and maintenance

PROCESSES

SPINNING SHEET METAL
COLD FORMING SPLINES
INTERMITTENT FORMING SPLINES

INTERNAL FORMING & JOINING
SLOTTING, COINING, FORMING SHEET METAL

MACHINES
A-SERIES COLD FORMING MACHINES

C-SERIES COLD FORMING MACHINES

R3 SPINNING MACHINE
i9 INTERNAL FORMING MACHINE

T12 COLD FORMING MACHINE

S8 SLOTTING MACHINE

ERNST GROB AG
Rohrgasse 9
P.O. Box 830
CH-8708 Männedorf
Switzerland

T +41 44 922 77 00
F +41 44 922 77 88
info@ernst-grob.com
sales@ernst-grob.com

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DATA PROTECTION

on the same machine using so called combi-forming heads.
Machines are dedicated for solid material as well as sheet metal applications.

For more detailed information and product catalogues, please contact us direct or our representative in your market.

TECHNICAL SPECIFICATIONS

A9 /A9T •
- Control Fanuc or Siemens
A9 / A9T • Cold forming solid material
- Max. spline module ~3.5
- Diameter range Ø ~20 to ~ 120 mm
- Generation of multiple splines in one clamping operation
A9T • Intermittent forming solid material
- Max. spline module ~2.5
- Diameter range Ø ~16 to ~ 100 mm
- Max. spline lenght 60 mm
- Verzahnen bis an Schulter
- Mehrere Verzahnungen in einer Aufspannung herstellbar
A9T • Intermittent forming sheet metal
- Diameter range Ø ~60 to ~ 200 mm
- Splining up to shoulders
A9T • Cold forming sheet metal
- Diameter range Ø ~60 to ~ 220 mm

Technical data are reference values only,
other dimensions on request.

Applicable processes

- Cold forming solid material
- Intermittent forming solid material
- Cold forming sheet metal
- Intermittent forming sheet metal
- Stroke stamping sheet metal

AUTOMOTIVE ENGINEERING - solid stock

In addition to engine and power train applications, GROB cold forming is used to produce various other cost-effective automotive components.

Typical applications

Steering half-shafts (height adjustment)
Brake actuation camshafts
Torsion bars
Power take-off shafts
ABS sensor splines
Axle bridges
Constant-velocity joints
Steering pinions
...
...