ROEMHELD Threaded-Body Work Supports – Spring Extended, B1.943 (1460, 3400, 5300, 9400 lbs)

ROEMHELD Power Workholding

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Product Information

ROEMHELD Threaded-Body Work Supports – Spring Extended, B1.943 (1460, 3400, 5300, 9400 lbs) Part # CLR-1940-501P Carr Lane Mfg.®

7250 psi max

Single Acting

Spring Extended

Work Supports automatically adjust to the proper height for supporting a workpiece, then lock securely to become fixed rests. The threaded-body version shown here is amazingly compact. Manifold mounting capability allows space-saving low-height installation. Highly corrosion resistant with stainless steel plunger and internal components. Metallic wiper and FKM wiper together provide excellent protection against dirt and coolant entry. Hardened contact bolt furnished.

Available in four sizes, with the following load capacities at 7250 psi:

1460 Lbs

3400 Lbs

5300 Lbs

9400 Lbs

Application Information

A specially designed metallic wiper edge effectively protects the FKM plunger wiper from hot, abrasive chips.

Documents

B1.943

Data Sheet

Support Action (Spring Extended)

Diagram showcasing the application of Roemheld Threaded Body Work Supports Spring Extended B1943 1460 3400 5300 9400 Lbs

Plunger is normally extended by light spring force. When the workpiece is loaded, its weight depresses the plunger to the proper height. When fluid pressure is applied, the precision sleeve grips the plunger, locking it securely.

Locking height is repeatable within +/-.0002". Such excellent repeatability is possible because of two design features: 1) a precision sliding-fit pressure sleeve holds the plunger absolutely vertical even while unlocked, avoiding any inaccuracy due to locking a tilted plunger, and 2) locking force is entirely radial, so the plunger remains absolutely stationary during the locking process.

Optional Pneumatic Contact Control

Design Considerations

Supporting underneath a clamp

Do not use the plunger to lift loads, or support side loads. The support plunger must always be protected against penetration of contaminants by a contact bolt (furnished).

When supporting underneath a clamp, use a Sequence Valve to delay clamping until the Work Support has reached sufficient load capacity to resist the clamping force. Support load capacity should be at least 2 times clamping force at all times, to resist not only static clamping force, but also dynamic forces due to clamping-arm momentum and machining forces.

Mounting & Fluid Supply

Install Work Support directly into a flat-bottom tapped hole in the fixture – see drawing for hole-preparation instructions. Tighten to the recommended seating torque. Fluid passages must be drilled as shown in the drawings. Do not use NPT fittings.

Materials

Plunger > Steel, case hardened. Body > Steel, black oxide finish. Sealing Washer > Delrin.

Click here for detailed material and finish specifications.