To get the parts homogeneously and with as least as possible tension out of the cavity, ejectors are used.
Additional ejectors can be set as optimization for the venting system.
The ejectors are mainly axial pins, which are located on the ejector plate and fixed from the ejector holding plate.
The movement of the ejector plate takes place most of the time by hydraulic.
When moving forward, the pins press against the parts and throw them out. The backwards movement is done by hydraulic or spring force.
The movement of the ejectors has a big influence on the wear of the mold.

Ejector in Plastic Industry


Injection Molding: Ejector pins in and on the ejector holding plate



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This glossary of plastic industry is provided by PLEXPERT Canada Inc.
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