The machine adopts 3-roller symmetrical structure with the upper roller moving vertically in the center between the two lower rollers, which is achieved through the drive of the screw, the two lower rollers rotates, and provides the plate materials with torque through the engagement of the output gear of the moderator with the gear of the lower rollers. The disadvantage of the machine is that the ends of the plate materials need to have the help from other equipment for per-bending.

Fnction of machine

1. The upper roller can move vertically SA well as horizontally. It has double function of re-bending and rounding.

2. The upper roller is in drum-type. And support roller is added to the lower roller. Through regulation of the support roller, it can coil high precision products to the exten of thin-thinck plates.

3. Realize pre-bending and cone bending function.

4. Perfect pre-bending and cone bending function.