It can crush various plastics and rubbers, such as plastic profiles, tubes, rods, filaments, films, waste rubber products, defective products and sprues generated by injection molding machines, etc. It is often used beside injection molding machines to immediately crush the sprues and waste materials generated during injection molding. A blower or suction machine can be installed to achieve immediate recycling and reuse of the crushed materials. It can also be used alone for low-output crushing requirements. It has a very low noise level.