Bottom Concaving Machine for Steel Seamless Cylind

500 Ton Bottom Concaving Machine for Steel Seamless Cylinder The machine is designed for formation processing the bottom of steel seamless cylinder after whose bottom has been closured. By replacement of different dies, the machine can satisfy to process all the bottoms for steel seamless cylinder with Φ219mm-Φ356mm. The machine is characteristic of the followings: 1)Automatic control, saving manpower, high production efficiency 2)With automatic feeding & ejecting unit for products with Φ219mm-Φ356mm 3) Quick changing dies and satisfying all kinds of product Processing Size Range: Workpiece Diameter: Φ219Φ356 Workpiece Length: Max 2500 Blank Wall Thickness: 5--18