Structural characterristics
The machine adopts the 3-roller asymetrical structur with the upper roller as the main drive and the main drive and the lower roller  making vertical movement so as to clamp the plate materials tight. The main drive comes from the engagement between the gear of the lower roller and the engagement between the gear of the lower roller and the gear of the upper roller. The side roller makes elevating movements and ha the function of prelimiary bending and rolling .the machine is characterized with compact structure and convenient operation operation and maintenance.