Injection Molding Lifter Design in Plastic Injection Mold Tooling The lifter is mainly used to form the internal undercuts of an injection molded plastic part, and at the same time it also offers ejection function. Considerations in lifter design include selecting abrasion-resistant and durable materials to withstand pressures and ensure operational efficiency. Ejector pins are … Continue reading Injection Molding Lifter: The Design Standard for Plastic Mold Tooling