Hammer mill shredder is used to process aluminum boxes, wheels, aluminum cans, scrap aluminum alloy, doors and Windows, waste non-ferrous metal purification, scrapped car body, tinplate, old household appliances, bicycles, empty cans and other waste, making it a better metal raw material. By continuously crushing, removing the coating, increasing the specific volume, preventing explosion when putting into the electric furnace, improving the dissolution rate in a certain state, etc., to meet the requirements of "concentrate into the furnace" in the smelter.