... option Turning Roll is used for welding, polishing, glue-lining & assembling the cylinder body. It has several types for option: adjustable, self ... aligned, screw type, tilting, anti-creep type, etc.Adjustable welding rotator: the center distance of the wheels on the ... of stepless speed adjust, low noise transmission and stable turning under the welding parameter in the rangeScrew welding rotator: ...