Clutch-operated screw presses
Our screw presses with continuously revolving flywheel and integral clutch give you alternative options no other press type offers you. These energy-bound presses produce all kinds of forgings. Due to the flexible clutch drive system, the machine type has achieved great success on the market for heat-sensitive materials, e.g. for aircraft and power station components.
Our screw presses apply high forming energy even at reduced ram speed. What makes this possible is our special clutch disengagement technology. Also important are the minimum workpiece contact times. Clutch disengagement can be force or stroke-controlled and all functions are controlled electronically.
Benefits:
- Strong forming forces with short workpiece contact times
- High useful forming energy due to special clutch technology
- Full performance even at 50 % of the nominal stroke rate
- Variable ram speed
- Hydraulic flywheel bearings
- Low accelerated masses
- Short acceleration distance
Screw presses with direct drive
Direct-drive screw presses combine massive forming forces with high forging precision. What distinguishes electrically driven screw presses from the flywheel type is that the driven spindle is connected directly to the drive motor – without intermediate gearboxes or other mechanisms. All you have to do is program the forging sequences for your workpieces. You can vary the bottom dead-center position with no need to change the die height.
Furthermore, it’s not necessary to adjust the ram as the machine heats up. Power comes from a synchronous motor. Here, the stator is part of the machine frame, and the rotor belongs to the flywheel. You also save costs with the braking energy feedback feature.
Benefits:
- High forces, precision forming
- Automated process with forging sequence programming
- Energy-saving operation with braking energy feedback
- Easy operation