An automatic welding unit of pipe couplings in fixed position PWM-1 is meant for automatic welding of pipelines from 219mm to 1620mm in diameter.
Welding may be carried out with the use of the following wires:
-solid (7018 or other) in CO2
- self-shielding (Innershield or other),
- flux-cored (FilArc or other) in CO2 or argon mixtures.
The unit is used for welding of pipes made of low-alloyed constructive steel and
alloyed corrosion-resisting steel.
The unit consists of a pipe welding head -PWM 1, guide belts, a control uni and a remote control station.