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This machine can pre-bend the ends of plate and then roll it to specified shape with one time loading without reversing it；

The upper working roll of the machine is the main driving roll，and the lifting of the lower roll and the rolls on both sides are hydraulically driven The lowering displacement is controlled by computer， automatic leveling， screen display， overturning， dumping and resetting of bearing body The position is hydraulically driven，and the tail of the upper roll is equipped with a balance mechanism，which can easily unload the rolled roll Workpiece and cylinder；

It can be moved and operated at anytime.The machine is equipped with safety interlocking device.The machine has high technical level and full functions， High precision and convenient operation；