ROEMHELD Threaded-Body Work Supports with Long Shaft, for Low-Pressure Hydraulic Systems – Fluid Advanced, Double Acting, B1.9472 (670 lbs)

ROEMHELD Power Workholding

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Product Information

1000 psi max

Double Acting

Fluid Advanced

This series of threaded-body work supports provides considerable load capacity at lower hydraulic pressures, allowing direct connection to the low-pressure hydraulic system of a machine tool. The unique version shown here has a 16mm-diameter shaft extension (20, 30, 40, 50, 60, 70, 80, 90, or 100mm long) which allows supporting surfaces in recesses and cavities that otherwise would be inaccessible.

Work Supports automatically adjust to the proper height for supporting a workpiece, then lock securely to become fixed rests. Fluid-advanced Work Supports provide extra loading clearance and are ideal for workpieces that are too light to depress a spring-loaded plunger. In the double-acting type shown here, the return stroke of the support plunger is effected in a precisely defined time, which is advantageous in timing-dependent automated installations. These Threaded-Body Work Supports are 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 one size, with the following load capacity at 1000 psi:

670 Lbs

Application Information

Documents

B1.9472

Data Sheet

Support Action (Fluid Advanced, Double Acting)

Plunger is normally retracted for clear workpiece loading and unloading. Applying fluid pressure to the lower passage gently advances the plunger to the workpiece, where it contacts with light spring force. As fluid pressure increases, the precision sleeve grips the plunger, locking it securely. The plunger retracts again when pressure is switched to the upper passage.

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.

Design Considerations

Material

ITEM	MATERIAL	HEAT TREAT	FINISH	DFARS	RoHS
Plunger	Steel	-	Case Hardened	✔	✔
Body	Steel	-	Black Oxide	✔	✔
Sealing Washer	Delrin	-	-	✔	✔

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