... :1: Bend-arm (C-axis) by hydraulic;2: Clamp die by hydraulic;3: Pressure die by hydraulic;4: Manual,semi-automatic and fully automatic ... Diameter, WT: Wall Thickness.Tooling accessory: Former Die,Pressure Die,Clamp Die,Wiper Die(Optional),Ball Mandrel(Optional).We design and ... requirement.This machine has 6 meters mandrel length. SB-115NC Hydraulic Pipe Bending Machine Boiler Shipbuilding etc