Mould Sprue Bushings

Mould sprue bushings provide the connection between the injection moulding machine nozzle and the mould’s runner or feed system. Molten plastic passes through the sprue bushing before entering the runner system and ultimately the mould cavity.

Accurate geometry, alignment and surface condition are important for reliable material transfer and consistent moulding performance.

Reliable Material Flow

Gumao Precision supplies precision mould sprue bushings for injection mould applications. Accurate manufacturing supports correct nozzle alignment, reliable material flow and repeatable operation during high-cycle production.

Sprue-bushing design may vary according to mould construction, runner layout and processing requirements. Gumao Precision can support customers requiring standard sprue bushings and suitable custom component requirements according to mould drawings and specifications.