The PDV's retractable jaw allows dies to be raised and moved past the clamp without clearance limitations. The jaw's movements and clamping take place automatically in series. Only two hydraulic lines are necessary, one to clamp and one to unclamp. If clamping heights are varied the PDV-VSB version can be ordered to accept tolerances of ± .020".
PDV 4 | PDV 6.3 | PDV 10 | PDV 20 | ||
Clamp Force | tons | 4 | 7 | 11 | 22 |
Setting Pressure | psi | 1150 | 1000 | 1300 | 1450 |
Operating Pressure (min) | psi | 1450 | 1300 | 1600 | 1750 |
Operating Pressure (max) | psi | 2000 | 2000 | 2000 | 2000 |
Holding Capacity (max) | tons | 7 | 11 | 14 | 28 |
Clamping Stroke | inches (mm) | .10 (2.5) | .10 (2.5) | .10 (2.5) | .10 (2.5) |
Clamping Tolerance** | inches (mm) | ±.008 (O.2) | ±.008 (±O.2) | ±.008 (±O.2) | ±.008 (±O.2) |
Oil Volume per Event (Clamp) | in3 | 1.5 | 3.4 | 3.4 | 5.9 |
Oil Volume per Event (Unclamp) | in3 | 1.2 | 3.0 | 3.0 | 5.3 |
Oil Flow Required per Unit* | gal/min | 0.05-.075 | 0.1 -.15 | 0.15-.25 | 0.15-.30 |
Hydraulic Fittings | R 1/8 | R 1/4 | R 1/4 | R 1/4 |
Hydraulic Fluid H-LP Viscosity = 25-60 cST / 40° C. Filter = 20-25 µm
*If a pump of greater flow capacity than required is used, it is necessary to throttle the flow.
**Optional VSB version allows tolerances of ±.020 (±0.5mm)