Automatic welding machine for root pass weld Model: PPAWM-24A Technical parameters: Pipe diameter applicable:DN50-600(φ60-630) Pipe wall thickness applicable:3-30mm Pipe length applicable:400-8000mm(for pipe dia ≤400 mm , adopt to auxiliary method to welding) Materials applicable :carbon steel 、alloy steel 、stainless steel and cryogenic steel Welding line applicable: various welding lines of spool pieces such as pipe-pipe, pipe-elbow, pipe-flange, flange-flange and flange-elbow, etc(a fake pipe transition connection shall be applied if necessary) Clamping system: clamping arm move up and down by screw Control system: a product of our patented technology ,PLC control , and show by text display Driving system: driven by two-row rubber roller and reducer Adjustment way: welding gun up and down , right and left adjustment by stepless Adjustment method: welding gun up and down, right and left position by button way, during operating procedure to real time, accuracy to center adjustment. Oscillating system: Oscillating mode: adjustment by electric cross oscillator , drive by step motor Adjustment mode: welding swing, swing around the frequency and left and right pause time etc by electric cross oscillator to adjustment of stepless Adjustment way: swing parameter(welding swing, swing frequency and left and right pause time) use to button+ digital display adjust way, can adjustment in time during operating process Welding system: Driving mode: two row with rubber rollers, servo motor + reducer drive Adjustment mode: Workpiece rotation variable frequency, stepless adjustable (stable), cross arm stretch the length of electrical, stepless adjustable Adjustment mode: Workpiece Rev speed / welding speed adjustment using knob + digital way, cross arm of extending length of use of buttons, can be adjusted in real-time operation process Welding mode: CO2 gas shielded arc welding and MIG welding process for root pass welding. Welding power :MILLER Pipepro 450 RFC