The piston has a single center pivot that drives each gripperjaw open and closed.
活塞有一个单一的中心枢纽，驱动每夹钳颚开启和关闭。
2
The gripperjaw and the clip can release the extruding material to return to the surface of extrusion press. The return operation can be completed when the extruding press is at immobile status.
夹爪及夹子具能松开挤型材料而快速返回挤压机面，返回所需时间在挤压机不动时间内完。
3
The "EPG" (two jaw) and "ETG" (three jaw) parallel gripper lines utilize a double acting piston and rocker arm design.