Humm that's interesting ... I've used the 26 air cooled torch that came with mine for an hour and a half in a single sitting w/o much problem ... it got a little warm but it really wasn't much of an issue ... for 1/8" aluminum I have my power set @ 115 amps w/ AC Freq @ 100 and balance between 35% and 42% seems to work good for me.






Reply With Quote