Return Pins

These are used to return the ejector plates to the home position to prevent damage to the cavity in case the ejector plates are inadvertently left forward when the mold closes. The pins on the outside corners ejector plate used to return ejector system so the mold closing action does not have the ejector pins striking the inside of the cavity. With today’s presses and the new standard press functions for low pressure close, this mold feature is practically obsolete.