China Jh21 Mechanical Punching Machine Metal Sheet Punching Hole Pow Press

As a kind of general punching machine, C frame mechanical power press including single crank press or double crank press, mechanical clutch press or pneumatic clutch press, capacity range from 25ton to 400ton.
Features:
1. High quality steel welded body, all processed by tempering and shot blasting. with good rigidity and stable precision;
2. Longitudinally set bent axle, with compact structure, and the bent axle is processed by rolling, with good smoothness and flexible rotation; rectangle six-face lengthened guide rail, the guide surface is bronze panel and with high guiding precision;
3. Air operated double balance cylinder, the balance sliding block and upper die weight can reduce the impact and noise, eliminate the gap between the connecting rod and the sliding block, reduce the impact and abrasion of loaded parts abd enhance the molding precision of the parts;
4. The whole machine has adopted imported PLC centralized control, and imported safety double valve control is applied to the gas circuit, to realize inch, single and continuous punching;
5. The key components and parts, such as sliding block, guide rail, working table, connecting rod, and flywheel, etc. are cast by resin-bonded sand by which the surface roughness can be improved by 1 to 2 levels and dimensional precision can be improved by 2 to 3 levels compared with common clay sand cast
6. Electrical control is applied to die-filling height for JH21 products of 60 tons or above; high-quality configuration. and all the key components and parts such as pneumatic components, electrical apparatus elements, sealing elements, and button are imported.