get CE certification tank rotator, welding turning rolls, turning roller, turning roller bed, roller bed, turning bed, rolling bed, welding rotators, adjustable turning rolls, moving type turning rolls, rolls,idler wheel shelf, self-aligning turning roll, The turning-roll series includes the self-alingment, the adjustable , the movable, the tilting and the anti-drft types. The series is used to weld , polish and assemble the cylinder-shells, and to line the shells with rubble . The self-alignmengturning roll can be aligned by itself according to the size of the shell, theadjustable turning-roll can be adjusted by lead screws and bolts grading . They can be controlled with AC frequency rnverter , and the linear velocity is displayed by the digital.They' re advanced and reliable. We also can design the customizevarious types of the turning-rolls in accordance with the customer's requirement.