Self-Locking Wedge Mechanism
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Dual Mounting Capability
Standard Fittings and Manifold Mounting
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New Item!
4300 psi max
Double Acting
FEATURES: These clamping elements are self-locking and also provide a support function by positively resisting opposing force after clamping. A patented self-locking wedge mechanism maintains full clamping force if hydraulic pressure is disconnected or drops. Mount in any position, horizontal or vertical. The tapped plunger accepts a contact bolt or extension. Dual mounting capability: all clamps are ready for either standard fittings or manifold mounting.
APPLICATIONS: Self-locking clamps are particularly suited for clamping on fixtures which are disconnected from their power source (machine-tool pallets, pallet storage systems, indexing machines, transfer lines). The support function is useful when machining forces are relatively high and directed against the clamping force, or when the workpiece must be held between opposing clamps in a neutral position and then immovably locked.
SIZES: Available in three sizes – see Dimensions page for part numbers. Clamping force at 4300 psi:| | 1100 Lbs | | | 2700 Lbs | | | 4000 Lbs |
CLAMPING ACTION: Applying fluid pressure to the A (clamping) port advances the piston, which in turn advances the clamping plunger via wedge contact. The plunger exerts clamping force and also resists opposing forces up to the maximum clamping force. If the workpiece yields or the contact bolt digs deeper into the material due to machining forces or vibrations, the clamp-support element instantaneously re-clamps provided that sufficient hydraulic pressure is available. Switching pressure to the B (unclamping) port positively retracts the piston and the clamping plunger.
DESIGN CONSIDERATIONS: If clamp-support elements are decoupled from their power source after clamping, e.g. on pallets, we recommend installing an accummulator in order to guarantee a re-clamping effect. The clamping plunger is designed to resist torsional forces, but cannot compensate for a permanent torque during operation. These elements cannot be used as pull-type cylinders.
MOUNTING: Fasten to fixture with four socket-head cap screws.
FLUID CONNECTION: Two 1/8" BSPP ports (clamp size 1) or two 1/4" BSPP ports (clamp sizes 2 and 3), A for clamping, B for unclamping. For optional manifold mounting, use the A and B O-ring ports (on either of two sides or on the bottom) instead of the standard ports. Unscrew the sealing plug in each O-ring port and install a CLR-3000-275-SW O-ring (also install a CLR-811-F Port Plug in each 1/8" BSPP port, or a CLR-810-F Port Plug in each 1/4" BSPP port). Do not use NPT fittings.
CONSTRUCTION: Plunger > Steel, case hardened. Body > Alloy steel, black oxide finish. Seals and wipers > FKM. |
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