I have a Hypertherm Max100 plasma cutter.
It used to work great.
As of now, it has developed a problem, which is that the arc develops
inside the head and burns it. Not sure why or what.
My question is, am I stuck with this torch head, or perhaps I can get
a completely different torch head? Is that like a TIG torch, that I
can replace with any other TIG torch?
I don't know what torch your plasma cutter uses but mine uses a Trafimet
S30 and it started to play up and the fix was simple. In operation air
pressure causes the internal electrode to retract and over time the
impact of the electrode on the stop had caused it to pinch the shaft so
it wouldn't retract properly. I simply dismantled the torch, an easy
job, and used a small 3 cornered scraper to remove the burr and all was
good again after reassembly.