PB series electro-hydraulic servo synchronous CNC bending machine adopts electro-hydraulic servo valve double cylinder synchronous control, hydraulic convex automatic compensation system; The back gauge mechanism can control multiple back gauge shafts; The machine body is welded by steel plate, the whole machine is tempered, the hydraulic system adopts an integrated control system, imported sealing ring, beautiful and simple appearance; The numerical control system adopts DA58W/DA66/DA66W/DA52 numerical control system of Dutch Delem company, Chinese menu graphic display, equipped with upper module speed clamping device. CNC press brake CNC series hydraulic press brake has two hydraulic cylinders with electro hydraulic servo valve. Deflection can be compensated by hydraulic vaulted back-off system. Backgauge mechanism can control several backgauge axes. Its frame is welded with steel plate and is treated with annealing. Hydraulic system adopts integrated control system and imported ring seals. It has a beautiful and simple contour. CNC system uses DA65W/DA66W/DA52 system with Chinese manu made in delem company of Holland. It can also be equipped with mould fixture according to customer's requirement.