The 4 rolls plate bending machine is hydraulically operated, PLC programmable and controlled by numerical control system, capable of accomplishing automatic rolling process.

During the plate rolling process, top roll stays the same position and the bottom roll moves vertically to hold the metal plate tightly against the top roll. At the same time, two side rolls do the upward movement by linear guide to adjust curvature radius of bent plate, which can implement pre-bending at the end and bending processes in a single direction and in one pass. Automatic mode can be applied in mass production, it provides high forming consistency for workpieces from the same batch.

• The plate bending machine can be precisely controlled by NC and CNC numerical control systems, suited to be used in mass production.
• Four rolls are forged and hardened, the hardness reaches HRC48-55, which are featured by high strength, good wear resistance, and suitable for heavy workload operation.
• Double row roller bearings are used to support work rolls, ensuring a low friction coefficient while reducing reactive power loss.
• Side rolls can be raised for accurate pre-bending.
• The bottom roll and side rolls can be tilted for cone rolling.
• The movements of bottom roll and side rolls are controlled by computer, achieving automatic alignment. Digital display of touch screen provides easy operation, synchronization accuracy reaches ±0.1mm.
• Tilting and resetting of bearing body are designed with interlocking device to provide safe operation.
• Main electric parts are from Siemens and Schneider, featuring long service life and maintenance free operation.
• Moveable control console is easy to operate, touch screen shows the precise positions of work rolls.
• The plate bending machine adopts PLC programmable control system, which has functions of fault diagnosis, machine parts monitoring, as well as data memory function when power is goes off.
• Hydraulic system is outfitted with high grade valves which feature large flow rate, low resistance and low heat, enabling the machine to be highly reliable.
• Hydraulic pipeline connector has reliable radial seal, guaranteeing the smooth operation of hydraulic system without oil leakage.
• Hydraulic system has oil filter to keep the system clean.
• Machine base is an integral structure, robust and easy to assembly. Both machine body and base are annealed for eliminating of internal stress and improving of processing accuracy.