Gibraltar HEP3618-G Straight Ejector Pin 7/16 in 18 in Steel

Product Description

The GIBRALTAR HEP3618-G is a straight ejector pin used in injection mold tooling to push finished parts out of a mold cavity at the end of each cycle. Machined from steel with a nitride finish for surface hardness and wear resistance, this pin measures 7/16 inch in diameter with an overall length of 18 inches and a usable pin length of 17-3/4 inches. The head diameter is 11/16 inch with a head height of 1/4 inch. It is installed and serviced by tool and die makers, moldmakers, and mold maintenance technicians working on injection mold assemblies.

This ejector pin is suited for use in injection molds requiring a 7/16 inch diameter ejector pin with an 18 inch overall length. It fits into the ejector plate and retainer plate assembly of the mold base, where it contacts the molded part directly. The nitride surface treatment improves resistance to galling and extends service life in high-cycle production environments. It is appropriate for both new mold builds and replacement applications in existing tooling.

Key Features

• Straight ejector pin configuration for standard ejector plate installations
• 7/16 inch pin diameter for precise fit in matching mold bushings and ejector plates
• 18 inch overall length with 17-3/4 inch pin length for deep-draw or long-travel mold applications
• Steel construction with nitride finish for surface hardness and reduced galling
• 11/16 inch head diameter and 1/4 inch head height for secure retention in the ejector retainer plate

Compatibility

Designed as a standard OEM-style replacement or new-build ejector pin for injection mold assemblies requiring a 7/16 inch diameter straight ejector pin with an 18 inch overall length.

Installation Notes

Ejector pins are installed and replaced by qualified moldmakers or mold maintenance technicians. The mold should be fully de-energized, hydraulic or pneumatic circuits depressurized, and the mold cooled to ambient temperature before disassembly of the ejector system. Verify pin diameter and length against the mold drawing before installation to confirm proper fit and ejector stroke clearance. Follow shop safety procedures and applicable tooling standards when working inside a mold base.