7500 psi max
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. The flange-base version shown here has a high load capacity and provides many mounting options. Metallic wiper edge and FKM wiper together provide excellent protection against dirt and coolant entry. Hardened contact bolt furnished.
Available in one size, with inch or metric plunger threads. Choice of two versions: Type 1 with side BSPP port, or Type 2 with bottom BSPP port. Load capacity at 7250 psi:
These Work Supports have a long stroke to provide a large adjustment range.
The plunger is normally retracted for clear workpiece loading and unloading. Applying fluid pressure 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 released.
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.
If the workpiece is light enough that plunger contact could lift it, use a Sequence Valve to delay advancing the work support until after the workpiece is clamped. 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.
The flange base has two through holes and two tapped holes for mounting. Several possible mounting methods: 1) fasten to top of fixture plate with two socket-head cap screws, either inserted through the flange base from above, or threaded into the flange base from below; 2) Mount through a bored hole in the fixture plate, fastening with two socket-head cap screws, either inserted through the flange base from below, or threaded into the flange base from above; 3) Mount through a tapped hole in the fixture plate, securing with a lock ring; 4) Mount through a bored hole in the fixture plate, securing with one or two lock rings. 1/4" BSPP port. Do not use NPT fittings.
Plunger > Steel, case hardened. Body > Steel, black oxide finish.