The four axes are operated at differential speeds, and have functions such as tearing, squeezing, and biting. The electrical part is programmed and controlled by Siemens electrical components, and has functions such as automatic detection of overload protection. The four-axis shredder is suitable for the refinement of various large-volume, difficult-to-crush materials, and has the advantages of uniform discharge and controllable size, such as: used to shred plastic barrels, plastic frames, plastic bottles, metal cans, metal barrels, woven bags, refrigerators, circuit boards, cartons and other materials. High efficiency, low speed, high torque, low noise. The four-axis shredder has the characteristics of strong wear resistance and high strength, and the four axes are operated at differential speeds, and have functions such as tearing, squeezing, and biting.