Gibraltar MEP1028-G Straight Ejector Pin 4.2mm 160mm Steel

Product Description

The GIBRALTAR MEP1028-G is a straight ejector pin manufactured from steel with a nitride finish, designed for use in injection mold tooling and die casting applications. The pin measures 4.20 mm in pin diameter with an overall length of 160 mm, a pin length of 157 mm, an 8 mm head diameter, and a 3 mm head height. The nitride surface treatment improves surface hardness and wear resistance, extending service life under the repetitive contact and thermal cycling conditions typical of production molding operations. This component is installed and replaced by toolmakers, mold technicians, and precision machining professionals during mold maintenance or new tooling builds.

Straight ejector pins of this type are used in plastic injection molds and die casting dies to push finished parts out of the mold cavity after each cycle. This pin is suited for applications requiring a 4.20 mm diameter pin in a standard straight configuration. It fits into ejector pin retainer plates and is used across a wide range of mold bases in both prototype and production tooling environments. The 157 mm pin length and 160 mm overall length make it appropriate for moderate-depth mold cavity setups common in industrial and manufacturing facilities.

Key Features

• 4.20 mm pin diameter for precise fitment in standard ejector pin bores
• 160 mm overall length with 157 mm usable pin length for moderate-depth tooling
• Steel construction provides the strength and dimensional stability required under cyclic ejection loads
• Nitride finish increases surface hardness and reduces wear at the pin-bushing interface
• 8 mm head diameter and 3 mm head height for secure seating in standard ejector retainer plates
• Straight pin geometry simplifies installation and replacement without specialized tooling

Compatibility

Designed as an OEM-style replacement or new-build component for injection mold and die casting ejector systems requiring a straight ejector pin with a 4.20 mm diameter and 160 mm overall length.

Installation Notes

Installation and replacement of ejector pins should be performed by qualified toolmakers or mold technicians with the mold fully de-energized, cooled, and removed from the press. Verify that the ejector pin bore diameter and retainer plate pocket dimensions match the pin and head dimensions before installation. Inspect mating bushings and the ejector plate for wear or damage before fitting the new pin. Follow the equipment manufacturer guidelines and applicable shop safety procedures during all tooling maintenance.