subsprue gate and spoke gate are two variants of the disk gate design

Subsprue gate and spoke gate are two variants of the disk gate design. Subsprue gate is due to flow distribution through a cone, the flow turns at a smaller angle, thus smoothing the flow. As for spoke gate, with a smaller gate to ease slug removal at the gate, compared to the disk gate, spoke gate consumes less plastic material for large part designs, it overcomes the ejection difficulty caused by the vacuum formed by disk gate. And clawed gate is a hybrid of the subsprue gate and the spoke gate designs.