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Air Compressor capacity for Plasma Cutter

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  • Air Compressor capacity for Plasma Cutter

    Can someone with experience with plasma cutter like the Spectrum 625 X-TREME please advise on your experience with air compressor size. Right now I have a small 6 gallon pancake compressor and from the looks of the specs on this plasma cutter i would need to get a pretty dang big compressor to make 6 SCFM at 90 psi !!! Am I looking at a $500 compressor here.

    Let me know your thoughts and what you run your plasma cutters with,

    as always thank you...

    Click image for larger version

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    Last edited by Johnnyappleseed; 12-08-2016, 01:41 PM.

  • #2
    Johnny,

    Really depends if you need it to run constantly. I have a rather small one that I use, I have to stop and wait a couple of times for it to fill up.

    I have a bigger one that I use for bigger jobs, sucks to drag it around but it can keep cutting for a while.

    Is it hobby or making a living?
    if there's a welder, there's a way

    Comment


    • #3
      the video on this one is pretty convincing seeing how quiet it is.


      [ATTACH=CONFIG]n575412[/ATTACH]
      Last edited by Johnnyappleseed; 12-08-2016, 01:53 PM.

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      • #4
        Worried about sound?....

        Maybe plasma cutting is not the way for you... It can get pretty loud, and messy, and flamey.... I almost set fire to a pallet I was using as a makeshift table on a job site yesterday...
        if there's a welder, there's a way

        Comment


        • #5
          Originally posted by Olivero View Post
          It can get pretty loud, and messy, and flamey.... ..
          understand, I just need to know if I go for the plasma cutter too will it involve a $300-$500 compressor to really let her rip.

          Click image for larger version

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          • #6
            OR..... maybe the latest gen of self contained... internal compressor plasma cutter units

            I thought that the Powermax 30 AIR worth looking at because Jim Colt believes they have conquered the reliability/durability compressor issues that plagued previous all in one internal compressor plasmas.
            the Hypertherm 088096 Powermax 30 AIR looks like an interesting choice

            Here is a thread on it........

            http://www.millerwelds.com/resources...owermax-30-air



            BTW.... For Plasma ...I have had a hypertherm-powermax-1000 for years and love it.... my welders are Miller...........
            ...
            Last edited by H80N; 12-08-2016, 04:33 PM.
            .

            *******************************************
            The more you know, The better you know, How little you know

            “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

            Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

            My Blue Stuff:
            Dynasty 350DX Tigrunner
            Dynasty 200DX
            Millermatic 350P w/25ft Alumapro & 30A
            Millermatic 200

            TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000

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            • #7
              Originally posted by Johnnyappleseed View Post

              understand, I just need to know if I go for the plasma cutter too will it involve a $300-$500 compressor to really let her rip.

              [ATTACH=CONFIG]n575416[/ATTACH]
              Yes, most likely it will. If you want a quality one, both of mine a Dewalts.
              if there's a welder, there's a way

              Comment


              • #8
                6 SCFM really isn't that much. Your plasma cutter has a duty cycle, so it won't do you any good to get a compressor that is over kill. I run my plasma cutter on a small rigid compressor whenever I leave the shop and have no issues. The other day I made four consecutive 18" cuts in 3/16" steel. The only stopping I did was to reposition the piece I was cutting. Now your little pancake compressor probably won't cut it, but you can add an air-keg or just a small compressor, something like a job site machine and you'll be fine. <br />
                <br />
                I have only a tiny bit of experience with those machines with the built in compressor. I live on the gulf coast and it tends to get rather humid here. A friend of mine bought one of those jobbers there a couple of summers ago and it worked for about two minutes until it started shooting water out of the contact tip. Just too humid here for it to work.

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                • #9
                  6cfm would be the bare minimum IMO. The good news is, you'll only need a ~$500 compressor. This is because most plasma cutters will still cut using around 60psi. So if you get a small 20gallon compressor that pumps up to 150-155psi, when it drops down to about 115psi, the pump will kick on to refill the tank, and you can still cut even if you out-run the tank+running pump because you have a good ~25psi "safe zone" that you can still use. For hobbyist use, it will work just fine.
                  Last edited by OscarJr; 12-09-2016, 08:06 AM.
                  HTP Invertig221 D.V. Water-cooled
                  HTP Pro Pulse 300 MIG
                  HTP Pro Pulse 200 MIG x2
                  HTP Pro Pulse 220 MTS
                  HTP Inverarc 200 TLP water cooled
                  HTP Microcut 875SC

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                  • #10
                    My Hypertherm PowerMax-1000 wants to see:

                    6.7 scfm (189 l/min), minimum flow rate, at a minimum pressure of 90 psig (6.1 bar).
                    Last edited by H80N; 12-08-2016, 07:40 PM.
                    .

                    *******************************************
                    The more you know, The better you know, How little you know

                    “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

                    Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

                    My Blue Stuff:
                    Dynasty 350DX Tigrunner
                    Dynasty 200DX
                    Millermatic 350P w/25ft Alumapro & 30A
                    Millermatic 200

                    TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000

                    Comment

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