Wide super long roll on a plate is the drum shape, improve the alignment, apply to extra long model cross section tanks rolling. Wide Super scroll Board machine Shang roll can vertical lifting movement, vertical lifting for hydraulic drive, through hydraulic cylinder within of hydraulic oil role Yu piston and obtained; Xia roll made rotating drive, through deceleration machine output gear and Shang roll gear meshing for volume Board provides torque, Xia roll lower has supporting roll, and can regulation. Shang roll is drum shape, improve products of line degrees, applies Yu super long specifications various section shape tank body of volume business.