The machine features hi-accuracy,hi-speed and energy saving by 40% The servo motor drives the hydraulic pump.Electro-hydraulic servo valves control double cylinders synchronization.Hydraulic crowning compensation device ensures bending straightness.The machine frame is of steel welding structure with annealing treatment,which ensures the machine frame rigidity and accuracy stability.Digital controller is DELEM DA52s.Holland (Optional DA56s,DA66T).Multi backgauge axes are available.The machine is of quick punch clamping device.