1. The machine widely used in petroleum,Website: , chemical industry, cement, boiler, shipbuilding, aviation, water conservancy, power transmission towers and other machinery and equipment. Its working principle is rotating bending deformation. For the upper roller can be moved no matter up and down, but also horizontally, so no need additional press or equipment, can realize prebending, bending, as well as correction of the workpiece.  Model MaxthicknessmmMax widthmmYielding strengthMpaRollingspeedm/minMin.diametermmTop rolldiametermmLower rolldiametermmSide rolls diametermmSpeedm/minMain powerkwW12－25*200025200024548003503202408022W12－20*250020250024546403503202408030W12－30*2000302000245410004003602408037W12－25*250025250024548004003602408037W12－35*2000352000245412004203802108037W12－30*2500302500245410004003602308037W12－40*2000402000245414004804004208045W12－45*2000452000245416005004502808045W12－35*2500352500245412004804004208045W12－40*2500402500245414005004503808045W12－45*2500452500245416005304804508063W12－35*3000353000245412005004503808045W12－45*3000453000245416005605004508063W12－55*2500552500245420006005505007875W12－55*3000553000245420006205605007875W12－65*30006530002454240067060055078110