Purpose and structure performance: The press, with steel structure frame of high strength and high precision is suitable for blanking, punching, bending, molding, amendment, pulling and stretching, hot trimming and other punching works. The press of JH31 series is widely used for the industry of automobile, tractor, agricultural machine, electric appliance, gauge, bearing, light industry, weave, mechanism, aviation and arm. The frame and slide all adopts welded steel . Double helical gear driving . The press adopts import or self-made dry pneumatic clutch and brake . Slide with foursquare and eight friction faces, which has the structure of guide pillar and guide bush, could assure high precision . Import double safety valve of high quality could assure safe and stable operation . Import hydraulic overload protector, components of sensitive response and quick reset . Power-driven close height adjustment is easy for using and maintaining . PLC controller and double circuit electric system . Standard pneumatic air cushion . Hydraulic, electric and pneumatic components adopt famous products of good quality, which could assure low failure rate . Intermittent power-driven thin oil lubrication assures safety and labor saving. The press could realize clutch angle, oil pressure, lubrication trouble, hydraulic overload protector and other complete machine automatic interlocking and monitoring.