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. Wet clutch and hydraulic overload protector