ARC MACHINES, INC., founded in 1976, is a world leader in manufacturing Automatic Orbital Tube, Pipe and Tube-to-Tubesheet (GTAW) Welding Systems. All of our weld heads and power supplies are designed and manufactured at our facility in Pacoima (Los Angeles), California, and we are ISO 9001:2008 certified. Our line of equipment is utilized in industries as diverse as semiconductor, food, dairy, biotechnology/pharmaceutical, aerospace, ship building and power generation. Our tube welding system is centered on the Model 207 Power Supply and line of Model 8 and 9 Series Weld Heads, which will accommodate diameters from 0.093” (2,3mm) to 7.5” (190,5mm) O.D.