Clamping Components for Injection Molding Machines

Parts of a clamping cylinder

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Steel tube closed by the rear cap and the front gland. Oil fed through the ports on either side of the piston moves it forward or back.
Clamping Cylinder
Divides the cylinder into two oil chambers. Pressure on one side moves it, and the rod with it, forward or back.
Seal the piston against the barrel so oil cannot pass from one chamber to the other. Leaking seals make clamping slow and weak.
Hydraulic Cylinder Seals & Y-Ring
Holds the piston on the end of the rod.
Piston Rod Nut
Chrome-plated rod that carries the cylinder’s force out through the gland to the toggle crosshead.
Seal set in the front gland: the rod seals keep the oil in and the wiper keeps dirt out.
Piston Rod Seal Set
Smaller cylinder used as a clamping booster or to drive the ejector on some machines.
Clamping Cylinder — Small / Auxiliary

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How each part works, how it wears and what to send for a replacement quote, with drawings.

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Most of what we supply is not listed online. Send the machine model with a photo or a short description, and we find the part for you.