It is widely used in paper spreading of sizing machine, calender, Winder and Slitter with unique structure. The curvature of roller body can be adjusted within a certain range to meet the needs of high-speed paper machine, special paper and various kinds of paper

　　It breaks through the disadvantages of traditional arc roller curvature as fixed value; the shaft end of frequency conversion motor is assisted to completely solve the speed matching problem of paper and roller, with more compact structure and more convenient installation

　　Manual hydraulic pump arc adjustment, after adjustment, mechanical accurate positioning, to ensure the accuracy of bow height.