Gibraltar EY6440-G Die Mold Ejector Sleeve 9in Nitride Steel

Product Description

The GIBRALTAR EY6440-G is a nitride coated die steel ejector sleeve designed for use in die mold tooling applications. The sleeve features a 0.1875 inch (3/16 inch) inside diameter and a 0.3125 inch (5/16 inch) outside diameter, with a 9 inch overall length. A 45-degree chamfer angle is machined into the bore to facilitate smooth pin engagement and ejection. This type of component is installed by toolmakers and mold technicians during die and mold assembly or maintenance operations.

Ejector sleeves are used in injection mold and die casting tooling to eject formed parts from mold cavities. The EY6440-G is suited for use in applications requiring a compact sleeve diameter with a standard 9 inch overall length. The nitride coating provides a hard surface layer that resists wear and galling under the repetitive cycling loads typical in production tooling environments. This sleeve is sold individually and is appropriate for toolroom stock or direct installation use.

Key Features

• Nitride coated die steel construction for improved wear resistance and surface hardness
• 0.1875 inch inside diameter and 0.3125 inch outside diameter for precise fit in compatible mold bases
• 9 inch overall length suits standard mold plate stack heights
• 45-degree chamfer angle on bore aids pin alignment and ejection stroke engagement
• Single-piece construction with no assembly required

Compatibility

Designed as an OEM-style replacement or toolroom-stock ejector sleeve for die mold and injection mold tooling applications requiring a 0.1875 inch ID by 0.3125 inch OD sleeve profile.

Installation Notes

Ejector sleeves are installed and serviced by toolmakers or mold technicians. The mold or die assembly must be fully de-energized, cooled, and secured before any tooling components are removed or replaced. Standard toolroom practices apply, including the use of appropriate press or arbor tools for sleeve insertion to avoid damage to the bore surface or chamfer. Handle nitride coated components with care to prevent chipping of the hardened surface layer during installation.