Roemheld CLR-1757-004-HC | 16mm Stroke Hollow Cylinder

Roemheld Hollow Cylinders

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. 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.

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 & Fluid Supply

Use either a threaded-hole or unthreaded-hole clamp. Mount on the clamp strap's center stud. 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.

Insert four socket-head cap screws through the flange base from above and screw into fixture. Alternatively, insert cap screws up through the fixture plate and screw into the clamp from below.

Insert four socket-head cap screws through the flange base from below and screw into fixture. Alternatively, fasten with optional lock nut.

1/4" BSPP port (two for double-acting clamps). Do not use NPT fittings.

Material

Parts Specification

Warning:

This product can expose you to materials and/or chemicals including arsenic, lead, and other materials and/or chemicals which are known to the state of California to cause cancer and/or reproductive harm.

For more information, visit www.P65Warnings.ca.gov