This machine is a hydraulic three-roller bending machine and used to do pre-bending the end of plate, rolling it into round, cone and other shapes. The brief introduction of movement of upper and bottom roller Upper roller can do both level movement (move from left to right) and vertical movement (move from up to down). Bottom roller is fixed. It just does rotation clockwise and counterclockwise. Pre-bending is achieved by horizontal movement of upper roller and presses the end of plate .High precision pre-bending, freely control the straight side of plate. Rolling round, it is achieved by means of the motor and reducer to drive two bottom rollers. The tipping device is very flexible, which make the roller plate material can be got off easily. The support roller improves the precision of rolling process, which can make rolling process more smoothly and perfectly. None or according to the customer's request