Features: 1.Steel welded body, tempering treatment or VSR(Vibratory Stress Relief), high rigidity, accuracy and stability; 2.Vertical located crankshaft, compact structure; 3.The crankshaft undergoes grinding treatment after high frequency quenching; 4.Lengthened rectangular guideway with a surface of bronze plate; 5.Pneumatic dual balance cylinder, which balances the slide block and punch weight to reduce noise and impact; 6.PLC control and imported safety dual valve; 7.Dry clutch and hydraulic overload protector.