ROEMHELD Block Cylinders with Locking Support Plunger, B1.711

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Product Information

ROEMHELD Block Cylinders with Locking Support Plunger, B1.711

7250 psi max

Single Acting

This Block Cylinder incorporates our exclusive "Locking Support Plunger", to provide clamping and supporting in one element. Block Cylinders provide a compact design that is easy to mount on flat surfaces.

Clamps with locking support plungers exert relatively little clamping force, but provide a high support force in the opposite direction. They are particularly suitable for clamping thin-walled workpieces with minimum deformation, as well as for floating clamping.

Available in one size, with the following forces at 7250 psi:

Clamping force = 1200 Lbs

Max. support force = 5800 Lbs

Max. retention force for floating clamping = 2300 Lbs

Application Information

In this example of “floating clamping”, the workpiece is pre-clamped against a stop and thereby positioned by a standard Block Cylinder. Then, controlled by a sequence valve, the two Block Cylinders with Locking Support Plunger are pressurized. The effective clamping force FW is uniformly generated by hydraulic pressure at both sides. A further floating of the web due to machining forces is avoided due to locking of both pistons. This arrangement is particularly suitable to absorb vibrations at ribs and webs.

Documents

B1.711

Data Sheet

Clamping Action

Applying fluid pressure advances the plunger, which simultaneously expands like a work support to lock inside the cylinder body. Spring return retracts the plunger for loading/unloading.

As a work support, this clamp has an elastic deformation of only .000036" per 100 lbs machining force.

Mounting & Fluid Supply

Fasten clamp with four socket-head cap screws. For manifold mounting, the mounting surface must be ground flat to ensure proper O-ring sealing. To provide maximum support force, the clamp must be secured to the fixture using the key slot.

1/4" BSPP port. For optional manifold mounting, use the manifold port underneath the clamp by unscrewing the sealing plug and installing an CLR-3000-347 O-ring (also install a CLR-810-F Port Plug in the 1/4" BSPP port). Do not use NPT fittings.