ROEMHELD Threaded-Body Cylinders with Locking Support Plunger, B1.711

ROEMHELD Power Workholding

Save to My Project

What is this?

Product Information

ROEMHELD Threaded-Body Cylinders with Locking Support Plunger, B1.711

7250 psi max

Single Acting

This Threaded-Body Push Clamp incorporates our exclusive "Locking Support Plunger", to provide clamping and supporting in one element. Threaded-body clamps provide considerable force in a small size, and can be placed very close together, especially when manifold mounted. Clamps can be screwed all the way down to their hex flats, or installed at partial depth. Long plunger guide ensures excellent reliability and durability.

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 body size, M30x1.5, 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” , two clamping bars with Threaded-Body Cylinders with Locking Support Plunger are mounted on a base plate and hydraulically connected by drilled channels. The axial block fixed in the center is used as guide for both clamping jaws. An installed return spring moves the clamping jaws to the unclamped position. Floating clamping, the uniform and tongs-type contact at the workpiece independent of its position is possible due to the hydraulic pressure compensation between the cylinders. After the pressure increase, the two locking pistons avoid a further floating of the clamping point.

Documents

B1.711

Data Sheet

Clamping Action

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

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

Mounting & Fluid Supply

Install clamp directly into a flat-bottom tapped hole in the fixture – see drawings for hole-preparation instructions. Hydraulic sealing is accomplished by a Sealing Washer (furnished) placed directly underneath the clamp. Tighten clamp to recommended seating torque.

Fluid passages must be drilled as shown in the drawings. Do not use NPT fittings.

Material

Click here for detailed material and finish specifications.

California residents click here for Prop 65 information.

ITEM	MATERIAL	HEAT TREAT	FINISH
Plunger	Steel	-	Case Hardened
Body	Steel	-	Black Oxide
Sealing Washer	Derlin	-	-