Version 1
Integral Flange
M6, M10, and M12 Stud Sizes
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Version 2
Flange Optional - Order Separately
M16, M20 and M24 Stud Sizes
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Plunger extension prevents drawing in chips and coolant when the cylinder is used in inverted position.
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Mounting Options
Version 1
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Mounting Options
Version 2
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7500 psi max
Single and Double Acting
FEATURES: Hollow Cylinders have a hole through the center of their plunger to accept a stud or drawbar. The version shown here has a plunger extension underneath to prevent drawing in chips and coolant when the cylinder is used in inverted position. Useful for transmitting force to a remote location using a drawbar. Hollow Cylinders can be used for pulling or for pushing.
CENTER HOLE: The plunger's center hole is threaded at the top end with counterbored relief below. These threads can optionally be drilled out to the counterbore diameter if an unthreaded center hole is required. A threaded center hole is ideal for pulling or pushing a drawbar. An unthreaded center hole is useful if the clamp is removed for workpiece loading.
SIZES: Available in six sizes, single acting and double acting – see Dimensions page for part numbers. Clamping force at 7500 psi:| | 2300 Lbs | | M6 stud | | | 7000 Lbs | | M10 stud | | | 11000 Lbs | | M12 stud | | | 17000 Lbs | | M16 stud | | | 27000 Lbs | | M20 stud | | | 44000 Lbs | | M24 stud |
CLAMPING ACTION: Applying fluid pressure advances the plunger, pulling up a stud or drawbar inserted through the center hole. Spring return (single acting) or fluid return (double acting).
DESIGN CONSIDERATIONS: Hollow Cylinders exert considerable force, so always use a grade 8 stud or equivalent drawbar at 5000 psi and above.
MOUNTING ON A CLAMP STRAP: Use either a threaded-hole or unthreaded-hole clamp. Mount on the clamp strap's center stud (longer stud usually required). Use a Spherical Washer underneath the clamp to compensate for clamp-strap angle. When using a threaded-hole clamp, install with a flexible hose because the clamp body will move slightly during clamping.
MOUNTING ON A FIXTURE PLATE: Insert four socket-head cap screws through the flange base from above and screw into fixture (flange base must be ordered separately for M16, M20, and M24 sizes – fasten to clamp with four additional socket-head cap screws). Alternatively, insert cap screws up through the fixture plate and screw into the clamp from below.
MOUNTING THROUGH A BORED HOLE: Insert four socket-head cap screws through the flange base from below and screw into fixture. Alternatively, fasten with optional lock nut (two required for M16, M20, and M24 sizes).
FLUID CONNECTION: 1/4" BSPP port (two for double-acting clamps). Do not use NPT fittings.
CONSTRUCTION: Plunger > Steel, case hardened. Body > Steel, black oxide finish.
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