This duty cycle thread is very interesting to me. I've never hit the duty cycle in any machine I've run. I must have lead a very sheltered life. I do pay attention to the duty cycle when buying a machine, but never hit it, and I've run machines at 500 to 600-amps for 10 to 12-hours days for months at a time. Had to replace the Tweco fittings in the leads every morning, and still didn't hit the duty cycle! :laughing:
lucky for me.. i do most of my welding near 90-100 amps or so..