Metal compressing baler machine can extrude various metal wastes (scrap, shavings, scrap steel, scrap aluminum, scrap copper, scrap stainless steel, scrap cars, etc.) into various shapes of qualified furnace materials such as rectangular, octagonal, cylindrical, etc., which can not only reduce transportation and smelting costs, but also improve furnace feeding speed. This series of packaging machines is mainly suitable for steel mills, recycling industries, as well as non ferrous and ferrous metal smelting industries.