Touch screen controlled with PLC program, operated simply and equipped with automatic feeding detection, can choose fixed convergent and even the axis convergent depends on the different material, compressing automatically, realize unmanned operation. Special automatic strapping device with simple structure, fast and stable, low failure rate and easy to maintain. Automatically inspect failure and display, improve the efficiency of detection. Bale length can be set freely and accurately records bale numbers. Special recessed multipoint blade design to improve cutting efficiency and extend the working life of blade. Powder feeder and intensive cylinder can be optional, applicable to materials recycling, such as: newspaper, hard plastic, etc. It has three phase voltage and safety interlock device, simple operation, can connect with air-blower or conveyor line to feed material directly, improve working efficiency.