Product Description The special welding positioner, with beautiful outlook and compact structure, is mainly composed of complete machine clamping structuresupport structure of work-pieceassembly structure of electric control and conduction of welding current. 1). Clamping structure of the complete machine This special welding positioner is operated easily and reliably with three-claw chuck clamping device. In the process of welding, the rotational speed of chuck is AC variable frequency speed regulation and can be adjusted to the best speed according to the size of work-piece and welding request. 2). Support structure of work-pieceDisplacement support structure can adjust the center distance between two support wheels according to the diameter size of work-piece. The bigger the diameter of work-piece, the bigger the center distance of wheels, and the lower the loading gravity center, and vice versa (as diagram 1 showing). At the same time, the displacement support structure can also adjust the radial distance between supports wheels and chuck (as diagram 2 showing). The whole process is manual adjustment, and can using manual wheel to locate the displacement support structure after adjusting to the target location. 3)Electric Control Electric control adopts centralized control, all the operation button are on the electric control cabinet, rotating speed adopts AC frequency inverter control, the control switch has natural rotating, reverse rotating, stop types and also speed instruction. It owns easy operation, high reliability.,