I been using a Dimetrics Centaur 75 power supply and sequence controller for circumferential automatic precision tig welding for almost 15 years. It uses a high frequency arc starter which has worked fine on most of our welds which are done with a .020" arc gap. I'm ordering another welding system and the salesman is trying to sell me one which will use a Miller Maxstar 152 that uses the Lift-arc start. Since the system will include a Arc Voltage controller with torch servo connected to a Amet XM controller I assume this will work fine.any one had experience with this type of system. Most of our welding our done at an average of 30 amps, 39"/minute. I'm concerned the Maxstar 152 will not perform as well as the Centaur especially on some of the finer welds which average 5 amps.
19 years ago