Gibraltar HEP3597-G Straight Ejector Pin 5/16 in Steel

Product Description

The GIBRALTAR HEP3597-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 wear and corrosion resistance, this pin measures 5/16 inches in diameter with an overall length of 6 inches. The head diameter is 1/2 inch and the head height is 1/4 inch, with a usable pin length of 5.75 inches. It is installed and serviced by tool and die makers, mold technicians, and maintenance machinists working on plastic injection molds.

This ejector pin is suited for use in standard straight-pin ejector plate assemblies found in two-plate and three-plate injection molds. Typical applications include production tooling in automotive, consumer goods, and industrial plastic part manufacturing. The nitride surface treatment helps extend service life under the repetitive contact and sliding motion inherent to high-cycle mold operation.

Key Features

• Straight ejector pin profile for use in standard ejector plate systems
• 5/16 inch pin diameter for common mold base bore sizing
• 6 inch overall length with 5.75 inch usable pin length
• 1/2 inch head diameter and 1/4 inch head height for positive ejector plate seating
• Steel construction with nitride finish for wear and corrosion resistance

Compatibility

Designed as an OEM-style replacement or direct-fit ejector pin for straight-pin ejector plate assemblies requiring a 5/16 inch diameter pin with a 6 inch overall length.

Installation Notes

Ejector pins are installed and replaced by qualified tool and die makers or mold maintenance technicians. Always de-energize and lock out the molding machine before accessing the mold or ejector assembly. Pins should be inspected for straightness and surface condition before installation. Do not force a pin into a misaligned bore, as this can cause premature galling or pin breakage.