Metal cutting - oxyfuel cutting, plasma cutting, machining, grinding, and other preparatory work.
Miller plasma cutter 375 spectrum
Post Reply
borntoweld
  • Posts:
  • Joined:
    Wed Aug 06, 2014 9:06 pm

Just bought a miller plasma cutter a 20 gallon Ingersoll Rand air compressor just looking for some tips on settings and if I have enough electrical amps for the plasma cutter. The electrician put in a 20 amp fuse. When I'm cutting it seems to keep throwing the fuse so have to stop and start over any suggestions would be helpful. Thank you
Top
User avatar
  • Posts:
  • Joined:
    Wed Oct 23, 2013 3:30 pm
  • Location:
    Palmer AK

borntoweld wrote:Just bought a miller plasma cutter a 20 gallon Ingersoll Rand air compressor just looking for some tips on settings and if I have enough electrical amps for the plasma cutter. The electrician put in a 20 amp fuse. When I'm cutting it seems to keep throwing the fuse so have to stop and start over any suggestions would be helpful. Thank you

You running it on a 115v outlet with a 20amp fuse??

A good friend of mine, AKmud, has the same machine, I'll see if he'll chime in.

~John
Just a couple welders and a couple of big hammers and torches.

Men in dirty jeans built this country, while men in clean suits have destroyed it.
Trump/Carson 2016-2024
Top
User avatar
  • Posts:
  • Joined:
    Sun Oct 27, 2013 10:57 pm
  • Location:
    Big Lake/Monticello MN, U.S.A.

Based on the specs for your machine, 20 amps at 115v will limit you.
Attachments
image.jpg
image.jpg (21.79 KiB) Viewed 1237 times
Dave J.

Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~

Syncro 350
Invertec v250-s
Thermal Arc 161 and 300
MM210
Dialarc
Tried being normal once, didn't take....I think it was a Tuesday.
Top
borntoweld
  • Posts:
  • Joined:
    Wed Aug 06, 2014 9:06 pm

thank you John
yes, I am running it on a 20 amp fuse.
Thank you again for getting back to me. teri
Top
borntoweld
  • Posts:
  • Joined:
    Wed Aug 06, 2014 9:06 pm

John
I think I just figured it out. I had my settings set wrong on the plasma cutter. I had the PSI set to high so I turned it down and now it seems to be cutting like cutting through butter.
Thanks again
Teri
Top
User avatar
  • Posts:
  • Joined:
    Wed Oct 23, 2013 3:30 pm
  • Location:
    Palmer AK

borntoweld wrote:John
I think I just figured it out. I had my settings set wrong on the plasma cutter. I had the PSI set to high so I turned it down and now it seems to be cutting like cutting through butter.
Thanks again
Teri

Nice!
What air pressure where you running?
Just a couple welders and a couple of big hammers and torches.

Men in dirty jeans built this country, while men in clean suits have destroyed it.
Trump/Carson 2016-2024
Top
User avatar
  • Posts:
  • Joined:
    Tue Jan 07, 2014 9:06 pm
  • Location:
    Elizabeth, WV

I have the same trouble. I am running my machine on 115v right now and it calls for about 80 psi but I am lucky to get it to cut on 60. I am running around 40 psi and it cuts awesome. I have no trouble with it. When I ran it at a higher psi, when the compressor would kick on, and since the machine and compressor are on the same circuit, my cuts would sputter and wouldn't cut. I turned it down and now it will cut even with the compressor on. It takes a little bit of tuning and tweeking to get one set right but once you find the sweet spot they are amazing. :)
It's always best to build your own, especially when it comes to hitches!!!
Matt
Top
Post Reply

Return to “Metal Cutting”