Gibraltar BW8633-G Die Mold Sprue Bushing Series B

Product Description

The GIBRALTAR BW8633-G is a Series B die mold sprue bushing manufactured from steel, designed for use in injection mold and die casting tooling applications. This bushing serves as the primary entry point for molten material into a mold cavity, connecting the injection nozzle to the runner system. With a 1 inch shank diameter and 4-13/32 inch shank length, a 2 inch head diameter, and an overall length of 5-9/32 inches, it fits standard mold bases requiring Series B dimensional specifications. Installation is handled by toolmakers and mold technicians working in industrial manufacturing environments.

This sprue bushing is suited for injection molding and die tooling setups where a Series B configuration is required. The 7/8 inch head height, 5/32 inch hole diameter, 3/16 inch cavity depth, and 1/2 inch corner radius make it compatible with standard mold base designs that call for these exact dimensional tolerances. Steel construction provides the hardness and wear resistance necessary for high-cycle production tooling environments. Quantities are sold individually, with a minimum order quantity of one unit.

Key Features

• Series B configuration for compatibility with standard mold base layouts
• Steel construction for durability in high-cycle injection molding applications
• 1 inch shank diameter with 4-13/32 inch shank length for secure press-fit seating
• 5/32 inch hole diameter channels molten material from nozzle to runner system
• 1/2 inch corner radius at the sprue well reduces stress concentration and material hang-up
• 2 inch head diameter with 7/8 inch head height for positive mold plate registration

Compatibility

Designed as an OEM-style replacement or new-build component for standard Series B die mold sprue bushing applications in industrial injection molding and die tooling setups.

Installation Notes

Installation is performed by qualified toolmakers or mold technicians during mold assembly or maintenance. The mold should be fully de-energized, cooled, and depressurized before bushing removal or installation. Press-fit seating is typical for sprue bushings of this type; verify bore tolerances in the mold plate before installation to ensure proper fit. Follow the mold manufacturer's specifications for locating ring and nozzle alignment when setting this component.