It adopts the electrical stepping system (can be replaced by PLC controller as customer's requirement) to realize the function of positive and negative rotary of motor. with the adoption of double electromagnetism valves and pressure relay, the operational safety is guaranteed. The frames of equipments are made of the holistic steel which has the advantages of high rigidity and reasonable structure. Thanks to inside installation of the driving system, the layout of the equipment is compact. It adopts the independent removable control panel is colorful, convenient and has nice layout. Also, the production line adopts the independent removable control panel which is colorful, convenient and has nice layout.