Feeding mechanism for arc welding PDG-421 is designed for semi-automatic arc welding with fusible electrode wire diameter from 0,8 mm to 1,4 mm, rated current 400 A (PV 60%), in a shielding gas environment. The feeder should be used in conjunction with any source of welding current for semi-automatic welding. Provides smooth adjustment and stabilisation of the welding wire feed speed.
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