Block Type
Spring Extended
For dimensions and specifications
of optional Contact Bolts, see
Contact Bolts.
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Workpiece supported horizontally for slitting operation. Block-type support is easy to mount horizontally.
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7500 psi max
Single Acting
FEATURES: Work Supports automatically adjust to the proper height for supporting a workpiece, then lock securely to become fixed rests. Support plunger is held by a precision sliding-fit pressure sleeve that provides incredible accuracy and repeatability. The block-type Work Supports shown here are very compact, and provide many plumbing options, including manifold mounting.
SIZES: Available in three sizes, with USA or metric plunger threads — see Dimensions page for part numbers. Load capacity at 7500 psi:| | 1600 Lbs (Metric only) | | | 2900 Lbs (USA & Metric) | | | 6500 Lbs (USA & Metric) |
SUPPORT ACTION (SPRING EXTENDED): 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.
ACCURACY: Height repeatability within +/-.0002". Such excellent repeatability is possible because of two design features: 1) the 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. Elastic deflection of the plunger per 100 lbs machining load for the three sizes is only .00009", .00005", and .00004" respectively.
DESIGN CONSIDERATIONS: The support plunger must always be protected against penetration of contaminants by the plastic plug furnished, or a contact bolt (order separately). 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: Several possible mounting methods: 1) insert two socket-head cap screws from the plunger end, through the two counterbored holes parallel to the plunger; 2) insert two socket-head cap screws from the bottom end, through the two counterbored holes parallel to the plunger; 3) insert two socket-head cap screws through the two broad-side holes perpendicular to the plunger.
FLUID CONNECTION: 1/4" BSPP port. For optional manifold mounting, use either the manifold port at the bottom end or the manifold port on the broad side by unscrewing the sealing plug and installing a CLR-3000-347 O-ring (also install a CLR-810-F Port Plug in the 1/4" BSPP port). Do not use NPT fittings.
CONSTRUCTION: Plunger > Steel, case hardened. Body > Steel, black oxide finish |
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