Metal baler can compress all kinds of scrap metal, cans, scrap iron into rectangular blocks, which not only solves the problem of storage of scrap metal, but also improves the selling price of scrap metal. Automatic metal packing machine is the equipment for scrap metal recycling market to improve the efficiency and service life of the equipment. Scrap metal baler: it is mainly used in recycling processing industry and metal smelting industry. It can extrude all kinds of metal materials, such as metal edges, steel scraps, scrap steel, scrap iron, scrap copper, scrap aluminum, disintegrated car shells, waste oil drums and so on, into various shapes of qualified furnace materials. It is convenient for storage, transport and reuse. The development of metal baler: (1) High speed,and low energy consumption. Improve the efficiency of the hydraulic machine, reduce production costs; (2) Electromagnetically integration system. Fully and reasonably use advanced animatronics technology to improve the whole hydraulic system; (3) Automation and Intelligent. The rapid development of microelectronic technology provides sufficient conditions for the automation and intelligence of hydraulic machines. Automation is not only embodied in the processing, should also be able to achieve automatic diagnosis and adjustment of the system, with the function of fault pre-processing; (4) The integration and standardization of hydraulic components. This integrated hydraulic system reduces piping connections and effectively prevents leakage and pollution. Standardized components bring convenience to machine maintenance.