Gibraltar BW8660-G Die Mold Sprue Bushing Series U

Product Description

The GIBRALTAR BW8660-G is a die mold sprue bushing used in injection mold and die casting tooling to channel molten material from the injection nozzle into the mold cavity. Built from steel for durability under repeated thermal and mechanical cycling, this Series U bushing features a 0.75 inch shank diameter, a 2-13/32 inch shank length, and a 2 inch head diameter. The overall length is 3-9/32 inches. It is installed by toolmakers, moldmakers, and mold maintenance technicians during mold builds or component replacements.

This sprue bushing is suited for use in plastic injection molds and die tooling where a standardized Series U geometry is required. The 7/32 inch hole diameter, 3/16 inch cavity depth, and 3/4 inch corner radius define the flow and seating geometry. With a head height of 7/8 inch, it fits conventional mold plate configurations common in production tooling. Sold individually, it is appropriate for both new mold builds and maintenance replacements in shop and manufacturing environments.

Key Features

• 0.75 inch shank diameter with 2-13/32 inch shank length for secure mold plate engagement
• 2 inch head diameter and 7/8 inch head height for proper seating against the mold face
• 7/32 inch hole diameter channels material flow from nozzle to cavity
• 3/16 inch cavity depth and 3/4 inch corner radius conform to Series U geometry standards
• Steel construction resists wear and deformation under repeated injection cycles
• 3-9/32 inch overall length suits standard mold plate stack depths

Compatibility

Designed as an OEM-style replacement or new-build component for plastic injection molds and die tooling requiring a Series U sprue bushing with a 0.75 inch shank diameter and 2 inch head diameter.

Installation Notes

Installation is performed by qualified toolmakers or moldmakers. The mold must be fully de-energized, cooled, and depressurized before disassembly or bushing replacement. Proper seating against the mold plate face should be verified before reassembly to prevent flash or material leakage at the sprue interface. Follow shop safety procedures and applicable tooling standards when handling steel mold components.