swines said:No. The ESAB has continuous control of wire feed rate and amperage.
The duty cycle versus amperage in the specifications only show what the duty cycle is at three different amperage outputs - they do not represent "taps" that translate to a 12-step output.
The ESAB Migmaster 253 that I tried had a 12 step tapped voltage control. This is also what they show on their web site. I wonder if they changed that recently?
ESAB has a unique smoothing circuit. My ESAB equipment has much better arc control than a Miller, Lincoln, or Hobart (new) - and I've owned both Miller and Lincoln, and have used Hobart MIGS. The ESAB arcs are "fat" and "soft" with no drift. They give you tremendous penetration when setup correctly without having to be super careful of under cutting at the edge of the bead.
Much to my amazement I was making some good looking welds after just a few minutes of instruction; penetration was just OK though. Guess I needed more heat. I was surprised at the ease in which I was able to do this. The machine/arc felt real good although I am a first timer. I should have taken some pictures so I could drool over them till I get a machine.
The 253 will take wire from .023 through .045. With .045 wire and 250 Amps you should be able to weld 1/2-inch metal.
That is what I need. I can’t wait till April. Need the Dr.’s clearance and our tax refund and I’m picking up a welder. I am leaning more towards the ESAB mainly because I was able to try it out and it felt so good. Still have an e-mail into HTP. We’ll see how that goes.
Thanks for the advice.