4-ролл листогибочные машины

We are the largest producer for plate bending machine and plate straightening machine, the max thickness for the bending machine is 260mm and the max width is more than23m. Our max staightening thickness is more than 100mm for our plate straightening machine, we are the drafters of this China Nation Standardand for the plate bending machine and plate straightening machine. WB12series CNC four-roll rolling machine can complete the end pre-bending and roll shaping of plate material in one cycle without need adjusting plate head,and the rest straight edge is least in the all kinds of lapping machines.For this series of lapping machine,upper roll is the driving roll which is driven by driving force,the lower roll and side roll are all driven rolls which rotate by means of the driving of friction between steel plate and each roll,the position of the upper roll is fixed,the upper roll and side roll all rise and fall by means of the driving of parallel connection oiI cylinder at the its two ends.the overturn and resetting of reverse head body of delivery end of upper roll are driven by oil cylinder.To raise the toughness of lower roll,support roll is installed in the center of lower roll.which rises and falls by the driving of oil cylinder.Spec 50×250040×400060×250060×320060×400080×3200100×2500100×3200100×4000120×4000Max width(mm)2500400025003200400032002500320040004000Max thickness(mm)504060606080100100100120Min-rolling diameter(mm)2000200020002500250025003000300040005000Yield limit(MPa)245245245245245245245245245245Rolling speed(m/min)443.53.53.53.53333Pre-bending thickness(mm)423250505070909090100