The plastic shredder produced by STPLAS Machinery Manufacturing Co., Ltd. does not block the material and uses the advantages of great value. The common structure of shredder is mainly three types: biaxial or four-axis shearing type, single-axis roll cutting type, coarse crushing and tearing type, etc. The common type of shearing shredder is shearing type shredder. Two to four knife shafts mainly rely on the principle of "shear and cut" to complete the crushing process. The principle of this tearing is to smash objects like scissors.