The machine has a structure of 3-roller symmetrical type. Upper roller can go up and down in the symmetric position over the center of both lower rollers. Hydraulic plate rolling machine can obtain this motion through hydraulic oil acting on piston inside hydraulic cylinder with digital indicator and accurately display the height of both ends of upper rollers. Mechanical upper roller lifting motion can be obtained by screw rod, screw and worm-drive. Two lower rollers produce a rotating motion which will provide power for plate running through the mesh between output gear of reducer and the gear of lower roller. At present, it is widely used in different industries. Technical parameters for hydraulic digital display down-pulling type规格型号Model最大卷制厚度Max. Rolling Thickness(mm)最大卷制宽度Max. Rolling Width(mm)上辊直径Upper Roller Diameter （mm）主电机功率Main motor Power(kW)W1140一250040250050045W1140一200040200048045W1130一320030320050045W1130一300030300045030W1130一250030250042030W1130一200030200036022W1125一250025250037022W1125一200025200034015W1120一250020250034015W1120一200020200028015W1116一320016320034015W1116一250016250028015W1116一200016200022011http://www.bending-machine-china.com/pid11406650/Hydraulic+digital+display+down-pulling+plate+rolling+machine.htm