400 TonStampingMachine Bottom Stamping 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 withΦ219mm-Φ325mm. The machine is characteristic of the followings: 1)Automatic control, saving manpower, high production efficiency 2)With automatic feeding & ejecting unit for products withΦ219mm-Φ325mm 3) Quick changing dies and satisfying all kinds of products. Processing Size Range: Workpiece Diameter: Φ219Φ325 Workpiece Length: Max 2000