Industrial Purpose Plasma Welding Machine has arc initiated between the electrode and the nozzle in the presence of plasma gas and is known as pilot arc. The Machine has the feature that the main plasma arc is transferred to the job through the orifice of the nozzle which constricts the arc. The Machine ensures welding current and pulsing at frequency up to 20 khz. The Industrial Purpose Plasma Welding Machine has AC square wave that is common on aluminium and magnesium.
