This machine is the hydraulic pressure 3-roller bending machines, using in coiling the steel plate to cylinder shape.
The upper roll can move vertically as well as horizontally .It has double function of per-bending and rounding.
The upper roll both may be vertical the migration, and to be possible the level migration, simultaneously has the pre-springing, the volume circle, the school circle function; Can metal plate high-quality goods, not need the tone then forming end pre-springing and the work piece volume system forming.
The pre-springing through the upper roll level migration, causes the upper roll to be opposite assumes the asymmetrical position in the lower roll to realize. Perfectly round when through the electrical machinery, the speed reducer, operates the type gear to lead lower roll revolving, and becomes when the volume board drive roll.
The lower roll additionally builds the volume awl installment, may realize the big taper work piece volume system because lower roll's elevation is invariable, and therefore is advantageous for feeding and the operation.
The upper roll vertical and the level migration use the digit to demonstrate, striking direct-viewing.