Gibraltar HEP3533-G Shoulder Ejector Pin 5/64 in Steel

Product Description

The GIBRALTAR HEP3533-G is a shoulder ejector pin designed for use in injection molds and die casting tooling. It features a 5/64-inch pin diameter, a 1/4-inch head diameter, and a 10-inch overall length, with a nitride finish applied to the steel body for improved surface hardness and wear resistance. The shoulder design — with a 1/8-inch shoulder diameter and 4-inch shoulder length — provides precise lateral support and consistent ejection stroke alignment within the mold base. This pin is installed by tool and die makers and mold maintenance technicians during mold assembly or component replacement.

This shoulder ejector pin is suited for use in plastic injection molds and similar precision tooling assemblies where controlled ejection is required. The 6-inch pin length and 1/8-inch head height allow it to fit standard mold plate configurations. It is sold individually and is appropriate for both new mold builds and replacement applications in production tooling environments.

Key Features

• Shoulder ejector pin design provides positive lateral registration within the ejector plate
• 5/64-inch pin diameter with 1/8-inch shoulder diameter for precise fit in mold bores
• 10-inch overall length with 6-inch pin length and 4-inch shoulder length
• Nitride finish enhances surface hardness and extends service life under cyclic loading
• Steel construction suitable for high-cycle mold applications
• 1/4-inch head diameter and 1/8-inch head height for standard ejector plate retention

Compatibility

Designed as an OEM-style replacement or new-build component for injection mold and die tooling assemblies requiring a shoulder ejector pin with a 5/64-inch pin diameter and 10-inch overall length.

Installation Notes

Installation is performed by qualified tool and die makers or mold technicians. The mold must be fully de-energized, depressurized, and cooled to a safe handling temperature before any ejector system service. Ensure bore tolerances in the ejector plate and retainer plate are verified before installation to prevent binding or premature wear. Do not force the pin into an undersized bore.