The machine is used for circumferential welding of upper body part and lower cap, equip with welder vision tracking system, finish the circumferential welding automatically, full automatic and no operator, each set equips with Panasonic YD-500GS high speed welder 1 set, water cooling welding torch 1 piece, 8L circle cooling tank 1 piece. Equip with welder vision tracking system 1 set. The electrical control system uses Mitsubishi PLC control unit, pro-face color touch screen operation screen.