Gibraltar HEP3515-G Shoulder Ejector Pin Steel 10 Inch

Product Description

The GIBRALTAR HEP3515-G is a shoulder ejector pin designed for use in injection molds, die casting tooling, and precision metalworking fixtures. Machined from steel with a nitride finish for surface hardness and wear resistance, this pin features a 1/16 inch pin diameter, a 1/4 inch head diameter, and a 10 inch overall length. The shoulder design provides a positive stop at the head, ensuring consistent ejection stroke depth and accurate pin registration within the mold plate. Toolmakers and mold technicians rely on shoulder ejector pins like this one to maintain repeatable part ejection without pin migration during high-cycle operations.

This pin is suited for use in plastic injection molds, rubber molds, and precision die tooling where controlled ejection force and tight dimensional tolerances are required. The nitride surface treatment improves hardness and corrosion resistance, extending service life in demanding production environments. It is typically installed by toolmakers, mold builders, or skilled machine shop technicians during mold assembly or scheduled maintenance.

Key Features

• Shoulder ejector design provides positive stop for consistent ejection stroke depth
• Steel construction with nitride finish for surface hardness and wear resistance
• 1/16 inch pin diameter with 1/2 inch shoulder length for precise mold plate registration
• 1/4 inch head diameter and 1/8 inch head height for standard ejector plate retention
• 9.5 inch pin length with 10 inch overall length accommodates thick mold bases
• Sold individually, enabling single-pin replacement without excess inventory

Compatibility

Designed as a standard shoulder ejector pin replacement for injection mold tooling and die assemblies requiring a 1/16 inch pin diameter and 10 inch overall length.

Installation Notes

Installation is typically performed by a qualified toolmaker during mold build or ejector system maintenance. Ensure the mold is fully de-energized, cooled, and safely supported in a press or fixture before accessing the ejector plate assembly. Verify pin bore diameter and ejector plate pocket dimensions match the pin head and shoulder specs before pressing the pin into position. Do not force an oversized pin into a bore, as this can crack the ejector plate or damage the pin surface hardening.