The scrap metal crushing and recycling line is designed for reducing and sorting thin-walled scrap metals and products, such as car shells, paint buckets, and household scrap steel. In addition, it can remove rust, paint, and impurities, and the bulk density of the treated metal can reach 1.2 to 1.5 t/m3. Effectively reduce the high transportation costs caused by excessive volume and increase the output of subsequent smelting processes.