Description:
Hydraulic rotary lever clamp for compact clamping fixtures.

Application:
For clamping in confined spaces where the workpiece must be removable vertically after the lever retracts.

Features:
- Compact construction
- Drilled-channel oil supply
- No lateral force during clamping
- Compatible with interchangeable K1857 tension levers

Operation:
- The clamping lever is connected to the piston rod
- Double-acting versions release hydraulically
- Single-acting versions release and open by spring force
- The lever moves linearly towards the workpiece and retracts for vertical removal

Material:
- Housing and piston: Steel

Finish / Version:
- Housing: Black oxidised
- Piston: Hardened

Dimensions:
- Form: B
- Form type: Single-Acting With Spring Return
- Piston diameter: 25 mm
- B: 52 mm
- B1: 38.5 mm
- D1: 36 mm
- G: M8
- G1: M8x12
- H: 31.25 mm
- H1: 37 mm
- H2: 43.75 mm
- H3: 11.5 mm
- H4: 38 mm
- L: 49 mm
- L1: 35.5 mm
- L2: 6.75 mm
- L3: 14.75 mm
- L4: 11 mm
- L5: 15.63 mm
- R: 18.7 mm

Load / Force Data:
- Piston force at 100 bar: 4.7 kN
- Piston force at 400 bar: 19.4 kN
- Effective piston area: 4.91 cm^2

Technical Data:
- Oil volume: 6.14 cm^3

Accessories:
- K1857 tension levers

Notes:
The effective clamping force depends on the selected tension-lever length. Check regularly for dirt, prevent swarf accumulation in the swivel area and align the clamp to provide a horizontal clamping point.