Gibraltar HEP3628-G Straight Ejector Pin 9/16 in Steel

Product Description

The GIBRALTAR HEP3628-G is a straight ejector pin designed for use in injection mold tooling and die-casting applications. Manufactured from steel with a nitride finish, this pin delivers hardened surface durability required for repetitive ejection cycles in production mold sets. It measures 9/16 inch in pin diameter, with a 5-3/4 inch pin length and a 6 inch overall length. The 13/16 inch head diameter and 1/4 inch head height seat securely in standard ejector plate configurations. This component is installed and maintained by moldmakers, toolroom machinists, and mold repair technicians working in precision manufacturing environments.

This ejector pin fits mold bases and tooling setups that require a standard straight ejector profile. It is suited for residential and commercial tooling shops, production injection molding operations, and die maintenance applications where controlled part ejection from a cavity is necessary. The nitride surface treatment improves wear resistance and reduces galling during high-cycle operation, making it appropriate for medium-to-high production mold applications.

Key Features

• Nitride finish provides surface hardness for extended wear life in high-cycle molds
• 9/16 inch pin diameter with precise 5-3/4 inch pin length for accurate cavity ejection
• 13/16 inch head diameter seats in standard ejector retainer plates without modification
• 1/4 inch head height maintains proper stack-up clearance within ejector plate assemblies
• Steel construction supports consistent dimensional stability under repeated ejection loads
• Sold individually, allowing single-pin replacement without purchasing a full set

Compatibility

Designed as an OEM-style replacement straight ejector pin for standard mold base ejector systems requiring a 9/16 inch diameter straight pin with a 6 inch overall length.

Installation Notes

Ejector pin installation and replacement should be performed by a qualified moldmaker or toolroom technician with the mold press shut down, de-energized, and locked out per OSHA lockout/tagout procedures. Verify pin diameter, head diameter, and overall length against the existing mold plate specifications before installation to ensure proper fit and flush seating in the ejector retainer plate. Do not force-fit pins into undersized bores; honing or reaming the bore to the correct tolerance is the accepted method for achieving a proper sliding fit.