Industrial waste is sent to the pre-shredder by the conveyor for crushing. And the crushed materials are screened out by the magnetic separator to obtain usable magnetic metals, and the unusable materials are sent to the landfill. The sieved materials are subjected to secondary crushing and magnetic separation, and valuable materials can be made into RDF fuel. This system adopts fully enclosed crushing, and the monitoring equipment monitors and displays the crushing process in real time, completely eliminating contact with people during the crushing process and avoiding safety accidents.