Gibraltar BW8630-G Die Mold Sprue Bushing Series B Steel

Product Description

The GIBRALTAR BW8630-G is a Series B die mold sprue bushing designed for use in injection mold tooling and die casting applications. It features a 1 inch shank diameter with a 3-29/32 inch shank length and a 2 inch head diameter, giving it an overall length of 4-25/32 inches. The head height measures 7/8 inches. Constructed from steel, this bushing provides the durability and dimensional stability required in high-cycle mold environments. It is installed by toolmakers, mold technicians, and machine shop professionals working on injection mold assemblies and die casting tooling.

This sprue bushing is suited for use in injection molds and die casting tooling where a controlled sprue entry point is required. The 7/32 inch hole diameter and 3/16 inch cavity depth make it appropriate for standard sprue configurations. The 1/2 inch corner radius supports smooth material flow and reduces stress concentration at the sprue gate. It is commonly used in production tooling for both prototype and high-volume manufacturing environments.

Key Features

• 1 inch shank diameter with 3-29/32 inch shank length for secure mold plate engagement
• 2 inch head diameter and 7/8 inch head height for positive seating at the mold parting line
• 7/32 inch hole diameter sized for controlled sprue entry
• 3/16 inch cavity depth and 1/2 inch corner radius for smooth material flow
• Steel construction for high-cycle durability and dimensional stability
• Series B designation for standardized tooling compatibility

Compatibility

Designed as an OEM-style replacement or direct-install component for Series B sprue bushing applications in standard injection mold and die casting tooling assemblies.

Installation Notes

Installation is performed by qualified toolmakers or mold technicians during mold build or repair. The mold should be fully de-energized, cooled, and removed from the press before bushing replacement or installation. Verify bore tolerances in the mold plate before pressing or threading the bushing into position. Consult applicable shop standards and mold design specifications for proper fit and retention method.