Roller-sting by active roller and workpiece is friction between the workpiece rotate drive equipment can be adjusted according to the size of the roller diameter of swinging Angle and distance to meet different requirements of workpiece. Mainly used for pipe, boiler, oil tank, the cylinder assembly and welding, and CaoZuoJi, longmen welding form a complete set, realize the workpiece girth, longitudinal seam of welding.
For roller-sting speaking, according to the regulation of roller distance is different, can be divided into: since the ZT roller-sting, adjustable turning rolls, machine adjusted roller-sting.