Hydromechanical Block
Clamp Unit
PDV-A
- For medium and large presses
- For increased functional safety thanks to mechanical self-locking
- For clamping moving bolsters as well as upper and lower dies
- For dies with straight clamping edges
Mode of operation
The clamping force is generated by a toggle mechanism. This is actuated by a double-acting hydraulic cylinder.
Description
In order to clamp, a clamping lever extends from the housing until it reaches the die clamping edge. The clamping force is then applied by means of a toggle mechanism. The system is mechanically self-locking. Low hydraulic pressure is only required during the process of clamping and unclamping.
The Optima „Aktivator“ ensures that the clamping force is continuously monitored. To unclamp, the clamping lever is first discharged and then retracted entirely into the housing (park position).
- Mechanically self-locking
- Highest level of safety thanks to continuous clamping force monitoring by the Optima „Aktivator“
- Low operating pressure
- High clamping force and small dimensions
- Practically maintenance free
- Fully automatic operation
- Simple monitoring of functions by limit switches
- Easy installation
- Suitable for retrofitting
- Pilot-controlled check valves
- Fittings
- Hydraulic hoses / Hydraulic accessories
- Hydraulic power packs
- Flow-control valves
Technical data
| Type | PDV-A 63 | PDV-A 100 | PDV-A 200 |
|---|---|---|---|
| Clamping force [kN] | 63 | 100 | 200 |
| max. loading force [kN] 1) | 100 | 130 | 250 |
| Operating pressure [bar]: min. / max. | 90 / 140 | 110 / 140 | 120 / 140 |
| Clamping dimension tolerance [mm] | +/-0,2 | ||
| Oil volume [cm3]: Clamp / unclamp | 56 / 50 | 56 / 50 | 97 / 87 |
| Max. oil volume flow [l/min] 2) | 0,4 - 0,6 | 0,4 - 0,6 | 0,6 - 1,2 |
| Limit switch:Number / type Supply voltage Switching capacity Connection type |
• two inductive proximity switches • 10-30 V DC • plug-in type • Clamping lever in unclamped position • Continuous clamping force monitoring |
||
| max. operating temperature[°C] | 70 | ||
| Weight [kg] | 26 | 30 | 42 |
1* Mechanical damage may occur at higher loads
2* If a pump with a greater output is used, the oil flow must be reduced by means of flow control valves or one-way restrictors