ROEMHELD Low-Block Edge Clamps with Locking Support Plunger, B1.711

Product Information

7250 psi max

Single Acting

This Edge Clamp incorporates our exclusive "Locking Support Plunger", to provide clamping and supporting in one element. Edge Clamps grip the side of a workpiece, pushing forward and downward simultaneously. Ideal when clamping from above is difficult. These clamps sit low, but clamp high, just below the cutter path for maximum rigidity, to reduce vibration. Horizontal force is 94% of total force, while downward force is 34% of total force. The pivoting nose is designed to resist side forces at the clamping point. Nose cover keeps out chips and debris. Dual mounting capability: all clamps are ready for standard fittings and manifold mounting.

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 = 900 Lbs

Max. support force = 6300 Lbs

Max. retention force for floating clamping = 4270 Lbs

Application Information

Workpieces are clamped with minimum deformation and relatively little piston force. Since the admissible support force FB is up to five times higher than the effective clamping force, the clamping forces which act against the right-hand low-block clamping cylinder with locking piston are securely compensated. With this arrangement the available machining area at the fixture is optimally used.

Documents

B1.711

Data Sheet

Clamping Action

Applying fluid pressure advances the piston, which in turn pushes the pivoting nose forward and down. The piston simultaneously expands like a work support to lock inside the cylinder body. Spring return pivots arm back and returns the piston for loading/unloading.

As a work support, this clamp has an elastic deformation of only .00017" 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.