Sprue Bushing

The sprue bushing is the opening through which melted plastic enters into the mold. The Sprue Bushing feature creates a sprue bushing.

The sprue bushing fits into the locating ring. The end is connected to either an opening in the main runner or directly to the mold cavity, depending on the setup. The sprue bushing directs the plastic through the runners, past the gate, and into the mold cavity, or directly into the cavity.

Before you place the sprue bushing, identify the mold base. The two placement methods are Linear and From Runner Sketch. The Linear option positions the sprue bushing relative to two linear edges. The From Runner Sketch option positions the sprue bushing based on the end point or a point on the runner sketch geometry.