Welding positioner, girth automatic welding positioner, transfer machine manufacturers welding positioner, girth welding positioner, circular workpiece positioner welding machine is suitable for manufacturing bellows, pipe flange welding, automobile muffler weld pipe fittings, shock absorbers, metal hose cutting use. The variable-bit machine can achieve rapid loading and unloading by clamping the pipe or flange assembly welding chuck. You can easily use the machine the workpiece rotation or tilting to a reasonable position for welding, 300 kilograms of new welding positioner (bellows, pipe flanges special) main structure consists mainly positioner frame, electrical control, rotating mechanism, pour part turning body, top tight device, aluminum rails, mobile torch adjustable stent. The welding positioner can be combined with welding, operating a pipe flange welding machine automatic welding center.