Light pole automatic shut & welding machine (dia bellow:500mm,1 shell) start from bended shell. This machine is specially designed for light pole automatic seam shut and welding. Welding method: Submerged Arc Welding/MIG Welding. LIGHT POLE SHUT-WELDING MACHINE is suitable for one shell type polygonal and circle taper light pole. it is automatic welding line, the dolly with speed adjustable motor can pull (or push) the light pole from small end to big end, The hydraulic cylinder through mechanical chain, worm wheel push the clamping wheel to close the pole and do welding at same time. The machine includes the following items: Long working table with rack for pull dolly. Dolly for pulling pole Hydraulic clamping and welding unit (including 3 sets clamping wheels for polygonal and circle pole) Submerged Arc Welding system, including welding wire feeding system. The flux recovering system Back support unit Hydraulic system Show More