EXTENSIVELY used for light, medium and heavy purpose structural work, machine building and fabrication work. These machines are used as power sources for gas tungsten arc welding (GTAW) of aluminum, magnesium and their alloys. Features: Welding current regulation by modern moving core magnetic shunt design; Step-less, smooth and infinitely variable current regulation; Adjustment of welding current possible even while welding is in progress; this enables fine current control; Open circuit voltage of 80V enables welding with all types of special electrodes including low hydrogen type for AC application; Special design – excellent dynamic characteristics ensure smooth and optimum metal transfer; Convenient and easily maneuverable from job to job for rugged welding applications; Higher OCV enables use of longer welding cables without problem of welding lead resistance drop.