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.