Gibraltar MT7727-G Straight Ejector Pin 12mm 250mm Oal Steel

Product Description

The GIBRALTAR MT7727-G is a straight ejector pin used in injection mold tooling to push finished parts out of mold cavities after each cycle. Machined from steel with a nitride finish for surface hardness and wear resistance, this pin measures 12 mm (approximately 0.472 inches) in diameter with an overall length of 250 mm (approximately 9.84 inches). The head diameter is 20 mm (approximately 0.787 inches) and the head height is 7 mm (approximately 0.276 inches), with a pin length of 243 mm (approximately 9.57 inches). It is installed by mold makers, tool and die makers, and moldroom technicians during mold build or maintenance.

Straight ejector pins like the MT7727-G are standard components in injection mold ejector systems for both prototype and production tooling. They are suited for use in single- and multi-cavity molds in plastics processing environments. The nitride surface treatment improves resistance to galling and extends service life under repetitive ejection cycles. This pin ships individually and is suited for direct replacement or new mold construction applications.

Key Features

• Straight ejector pin geometry for standard mold ejector plate systems
• 12 mm pin diameter for medium-load ejection applications
• Nitride finish provides surface hardness and reduces galling wear
• 250 mm overall length accommodates deeper mold tooling configurations
• 20 mm head diameter seats securely in ejector retainer plates
• Steel construction for durability under high-cycle injection molding conditions

Compatibility

Designed as a standard straight ejector pin for use in injection mold tooling ejector systems requiring a 12 mm pin diameter and 250 mm overall length.

Installation Notes

Installation is performed by qualified mold makers or tool and die technicians. The mold should be fully de-energized, hydraulic or pneumatic pressure relieved, and the machine locked out before ejector system service. Pins should be inspected for straightness and surface condition before installation, and mating ejector plate bores should be checked for proper clearance fit. Do not force or hammer pins into undersized bores, as this can cause galling or cracking.