Introduction of performance and working principle of hydraulic four roll plate bending machine：

Performance:
Plate bending machine is a kind of common forging machine equipment which can bend non-metallic plates into cone, sphere, cylinder or other shapes. This performance is widely used in building, boiler steam, chemical industry, non-metallic structure and machine building. Change machine business can hardly be short of another machine, because it is widely used by all walks of life, also has yesterday's rapid development of the rolling machine business.

working principle:
The upper roll position is fixed, and the lower roll moves upward to clamp the steel plate. The curvature radius of the drum can be adjusted by the linear or arc movement of the rollers on both sides. Four roller and three roller rolling machines have different motion forms of rollers, but their working principles are the same. They all use the principle of three-point circle to roll different radii. However, the straightness and roundness of pre bending of four roll bending machine are better than those of three roll bending machine.