Series for precision tubes & gearing components

Vertical flow forming machine

Lightweight gearing components permit the reduction of fuel consumption and downstream emissions during vehicle operation. Our VSTR 400 series produces lightweighting elements that consume less material but nonetheless assure higher strength compared to chip-removing methods. It has no difficulty with components previously not feasible. And all in a compact machine with short cycle times.

The VSTR 250, 500 and 750 series, on the other hand, produce precise tubes and hollow bodies. Advantages of the VSTR (vertical flow-forming) series – tubes & gearing components:

High stability.
Low material usage.
Minimal/no post-processing.

VSTR 250-3 (Tubes)

VSTR 400-3

VSTR 400-3S

VSTR 500-3 (Tubes)

VSTR 750-3 (Tubes)

Vertical flow forming machine (VSTR) 250-3

for cold forming of tubes and hollow bodies of diameters up to 250 mm

Workpiece diameter

min.

50 mm

Workpiece diameter

max.

250 mm

Workpiece length (forward-flow processes)

max.

500/1.000 mm

Workpiece mounting

DIN 55027

Size 11

Number of forming rollers

fixed

Drive rating, main spindle

approx.

125 kW

Main-spindle speed

max.

400/800* rpm

Support stroke

axial

1 x 600 mm

Support stroke

radial

3 x 150 mm

Support force

axial

1 x 200 kN

Support force

radial

3 x 150 kN

Tailstock thrust force

max.

120 kN

Our series of machines for high-precision tubes

cold forming

Vertical flow forming machine (VSTR) 400-3S extra-robust version

for forming of gear components of workpiece diameters up to 400 mm

Vertical flow forming machine (VSTR) 500-3

for cold forming of tubes and hollow bodies of diameters up to 500 mm

Workpiece diameter

min.

100 mm

Workpiece diameter

max.

500 mm

Workpiece length (forward-flow processes)

max.

1.000 mm

Workpiece mounting

DIN 55027

Size 15

Number of forming rollers

fixed

Drive rating, main spindle

approx.

175 kW

Main-spindle speed

max.

350/700* rpm or customised

Support stroke

axial

1 x 1.100 mm

Support stroke

radial

3 x 275 mm

Support force

axial

1 x 350 kN

Support force

radial

3 x 250 kN

Tailstock thrust force

max.

150 kN

Vertical flow forming machine (VSTR) 750-3

for cold forming of tubes and hollow bodies of diameters up to 750 mm

Workpiece diameter

min.

150 mm

Workpiece diameter

max.

750 mm

Workpiece length (forward-flow processes)

max.

1.500 mm

Workpiece mounting

DIN 55027

Size 20

Number of forming rollers

Standard 3 / optional 4

Drive rating, main spindle

approx.

300 kW

Main-spindle speed

max.

250/500* rpm

Support stroke

axial

1 x 1.600 mm

Support stroke

radial

Standard 3 x 400 mm / optional 4 x 400 mm

Support force

axial

1 x 600 kN

Support force

radial

Standard 3 x 400 kN / optional 4 x 400 kN

Tailstock thrust force

max.

260 kN

VSTR 250-3 (Tubes)

VSTR 400-3

VSTR 400-3S

VSTR 500-3 (Tubes)

VSTR 750-3 (Tubes)

VSTR 250-3 flow forming machines for cold forming of tubes and hollow-bodies.
VSTR 250-3 flow forming machine for precision tubes.
VSTR 250-3 for precision tubes.

End products of VSTR series

Machine series designed for the production of precision tubes & gearing components (hollow shafts, cooling jackets, rotor carriers/stator carriers, rotor shafts).

Precision tubes – overview
Endproduct-250 mm
Endproduct-Defense
cylindrical tubes and rotationally symmetrical precision hollow bodies

› precision tubing – end products
gearbox components with and without hub

> gearbox components – end products
rotor shafts & hollow shafts for electric motors

› rotor shafts – end products
stator carrier for electric motors

› stator carriers – end products

3D-view

Vertical flow forming Machine VSTR

VSTR 400-3S: 3D-view in Full HD