Our Innovative Technology, ALEX Series of Water Cooled GTAW power source is designed with 100% Duty Cycle. It is a Aluminum extruded body.The user-friendly panel contains quick current and arc force adjustment,Saves power, if the welder is not welding more than 2 min.Microprocessor based fine control on current & voltage, Smart water cooling interlocking, Waterflow when the temperature certain limit. SigmaWeld ALEX GTAW machine can be easily interfaced with Robots, Welding SPMs and other systems.