The structure of this machine is designed as a symmetrical up-adjusting 3-roller plate-rolling form.Through the machine the metal plate can be rolled into the round and arc shapes and the cone shape within its specified ranges.The two lower rollers are driving ones and the upper is an idler one.This machine is widely used in ship building,boilers,aviation,hydroelectricity,chemical industry, metal structure,machine manufacture and other industries specmax.thickness of rolling plate(mm)max.width of rolling plate(mm)speed rolling plate(mm)mini.dia.of rolling plate(mm)yield limit(mpa)dia.of upper roller(mm)dia. Of lower roller(mm)certer of bottom roll(mm)power of primary motor(kw)W11X-6×2000620007.163802451801702507.5W11X-8×2000820006.534502451901702607.5W11X-8×2500825006.4660024524020028011W11X-12×20001220006.4660024524020031011W11X-12×25001225006.4670024526022034011W11X-16×20001620006.4665024526522034011W11X-12×40001240005.590024536024036022W11X-16×25001625005.570024528024036025W11X-16×30001630005.595024534028044030W11X-20×20002020005.375024528024036015W11X-20×2500202500485024534028044018.5W11X-25×2000252000485024533027044018.5