Ejector Pins

Some articles on ejector, ejector pins:

Die Casting - Dies
... are used in die casting one is called the "cover die half" and the other the "ejector die half" ... The ejector die contains the ejector pins and usually the runner, which is the path from the sprue or shot hole to the mold cavity ... The cover die is secured to the stationary, or front, platen of the casting machine, while the ejector die is attached to the movable platen ...