Cam action plungers can rise to heavy duty challenges

Indexing plungers are commonly used in applications where there is a predefined stop location; which can easily and accurately be identified and secured simply using an index action plunger. Spring loaded plungers effectively make this process automatic.

The WDS range is available in a number of sizes: end diameter 6-12mm; outer diameter M16x1.5mm or M2x1.5mm; bolt length 46 or 57 mm; protrusion length 10 or 12mm, and a handle length of 42 or 52mm. The weight of the units varies with size from 114-188g.

The cam action is generated by a collar with an angled free end. In use the handle is turned through 180°, causing it to ride along the angled collar, moving the plunger which is attached at right angles to the handle laterally to project or retract it from the barrel of the unit.

Phil Holyome, Business Development and Special Projects Engineer with WDS said they fulfil a specialist role compared to other plungers. “Like all plungers, their basic function is to locate and lock moving parts in set positions. However, the new cam action plungers are for use in situations where machine or equipment operators want to be sure that they have been successfully deployed or retracted. The fact that they have to be manually operated gives this assurance.”

He added: “As a rule, cam action plungers have larger bolt diameters than simple sprung plungers and are intended for heavier duty applications.”