Displacement of welding machine is a universal and efficient in order to realize the girth welding welding equipment. But with argon arc welding machine (fill wire or not wire filling), melting polar gas shielded welding machine (our fleet/MAG/MIG welder), plasma welding and other welding power source with other units into automatic welding system. The product is mainly composed of rotating the nose, the displacement mechanism and controller. Rotating head speed is adjustable, which has an independent control circuit, the weld length dial the code switch directly to preset. Angle can be adjusted according to need. Welding torch can be pneumatic lifting