Anti-twist lock with clear benefits

Two surfaces for clear positioning

The standardized, space-saving head shape of the ejector pin ensures its distinct position in the tool. Different surfaces on both sides  allow mounting only in the exactly desired position and prevent the distortion of the ejector at the same time . A circumferential bevel serves for pre-centering and helps to assemble easily and quickly.

KNARR offers the new anti-twist-lock system as hardened (39111), DLC-coated (39111DLC), nitrided-oxidated (39414) as well as HSS version (39555). In addition to the standard diameters, the lush range of dimensions also includes intermediate dimensions for repair purposes. In varying gradations, the ejector pins are available directly from stock up to a length of 800 mm.

Eight good reasons

Anti-twist protection also for shouldered ejector pins

The advantages of a bi-lateral anti-twist lock can also be used with shouldered ejector pins. An HSS solution is offered as standard (396555), which provides even more wear resistance by means of its additional DLC coating (396599).

Alternative: Three surfaces

Of course, the original anti-twist ejector pin type is still an integral part of the KNARR portfolio. Incorrect assembly or twisting of the pin during ongoing production is ruled out by as many as three head surfaces. Round ejectors can be provided as hardened (VS37111), nitrated (VS37412) or DLC-coated (VS37999) types. Shouldered ejector pins with a three-surface anti-twist lock are offered in a hardened version (VS36111).