Dry air suggestions for Plasma
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  1. #1
    Join Date
    Apr 2009
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    Toronto
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    85

    Dry air suggestions for Plasma

    Does anyone have any mfg'r or model suggestions for an air filter and dryer for a Plasma cutter? Also any air line setup tips appreciated.

    Thanks,
    Bob.
    Miller Dynasty 200 DX
    Millermatic 211
    Hypertherm PM 600
    In Tool acquisition Mode

  2. #2
    Join Date
    Mar 2008
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    190

    Re: Dry air suggestions for Plasma

    motorguard is the best.

    http://www.motorguardplasma.com/

  3. #3
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    Re: Dry air suggestions for Plasma

    Ok, thanks for the tip . Anyone second that motion?
    Bob.
    Miller Dynasty 200 DX
    Millermatic 211
    Hypertherm PM 600
    In Tool acquisition Mode

  4. #4
    Join Date
    Dec 2007
    Location
    Central West Virginia
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    204

    Re: Dry air suggestions for Plasma

    Motorgard is what my Hypertherm dealer suggusted when I purchased my HT1250 G3. It also helps to pre-dry your plasma air by being as far as possible from your air compressor. This allows the hot compressed air to chill to room temperature in the lines & a large part of the mousture will drop out & allow you to catch it in a standard bowl type water seperator. Pryor to going into the motorguard filter.

    The picture of the one that pops up from the above link looks identical to the one I have. They do have a paper looking filter that has to be periodically replaced. Change interval will vary depending on how much you can get your air cleaned up before it hits the MG filter.

    The ultimate of course is a refrigerated air dryer. & actually the one Harbor Freight Tools sells for about $400.00 US is a pretty good unit & comes with a 3 year replacement warranty.
    IF IT WORKS, DON'T FIX IT

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  5. #5
    Join Date
    Nov 2005
    Posts
    78

    Re: Dry air suggestions for Plasma

    I just rigged up a Motor Guard M30 near my big compressor then I have about a 75ft run of line so I got a little LA-Man 520A dual chamber off Ebay on the cheap which is mounted directly to my Cutmaster 38. Works like a charm.

    You definitely want the extra filter if you have a long run after your main filter because the dry air will have a chance to condense again by the time it gets to the end of the line. You won't get a lot of moisture, but why take the chance? I can blow air out of my second filter for an hour into a paper towel and it will be bone dry.

    I also think a very important thing to remember is to run your piping up from the compressor before going out or down, that way the moisture has a much harder time getting into your piping and will settle into the tank where it can be drained.

  6. #6
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    Toronto
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    Re: Dry air suggestions for Plasma

    Thanks JH225. Good points. I guess I will price a Motor guard at my LWS and hope he is reasonably close to the on line pricing.
    Bob.
    Miller Dynasty 200 DX
    Millermatic 211
    Hypertherm PM 600
    In Tool acquisition Mode

  7. #7
    Join Date
    Nov 2005
    Posts
    78

    Re: Dry air suggestions for Plasma

    Quote Originally Posted by Nicad View Post
    Thanks JH225. Good points. I guess I will price a Motor guard at my LWS and hope he is reasonably close to the on line pricing.
    Forget the LWS, they will never get this low price for the M45 kit.........http://www.amazon.com/Motor-Guard-JL.../dp/B000VXIR88

    Only thing is you are in Canada so I don't know how shipping will be.

  8. #8
    Join Date
    Mar 2008
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    190

    Re: Dry air suggestions for Plasma

    ^^^^ Holy ****. Thats one good price. $61 on amazon. I would buy it now. Most places want 100-120 dollars. I however dont think that is the "plasma" filter, but it is still a good price.

    I would suggest not hooking it up to your main line (right off the compressor).It will collect too much water and junk in the lines. You would have to be changing the filter often. Motorguard makes filters to hook up to the main line. Just dont use the plasma filter because it filter "too" fine of the dirt out and it would stop up the filter in a few days. hook it up just before your plasma to get the most out of it.

  9. #9
    Join Date
    Dec 2007
    Location
    Central West Virginia
    Posts
    204

    Re: Dry air suggestions for Plasma

    I gave $80 something for mine added to the invoice when I purchased my plasma machine.

    I agree with Ace, I'd try to get my air cleaned up with first a "drip" leg in the line followed by a standard bowl type water/oil trap & locate the plasma filter closer to the plasma machine.

    Most air you use to blow things off run impacts etc is clean enough after conventional methods of removing water...... motorguard filters actually have a filter element that needs changed when it gets contaminated. I wouldn't want to buy that filter any more often than is necessary.
    IF IT WORKS, DON'T FIX IT

    Linde-VI 253,400 & 450 w/MIG35 feeders
    CNC Table with Oxweld O/A & Hypertherm 1250G3
    Lincoln Ranger GXT 250
    Hobart-MicroWire 300
    ESAB Heliarc 161
    ESAB-Mobilemaster 2 CC/CV Feeders
    & more

  10. #10
    Join Date
    Apr 2009
    Location
    Toronto
    Posts
    85

    Re: Dry air suggestions for Plasma

    Thanks guys. Amazon will only ship books to Canada. Free trade...what free trade? I will most liklely have a filter before the final plasma filter. Will put it on the wall by the Pasma's new home.
    Bob.
    Miller Dynasty 200 DX
    Millermatic 211
    Hypertherm PM 600
    In Tool acquisition Mode

  11. #11
    Join Date
    Nov 2005
    Posts
    78

    Re: Dry air suggestions for Plasma

    Guy's,

    The only difference between the M30 (standard 1/4") & the M26 (plasma) is the fitting points. That came straight from the source as I called MotorGuard myself. The only difference between the M30(1/4") and the M60(1/2") is the fitting size. I chose the 1/4" as that is the size of all my air chucks.

    I had the standard clear "drip bowl" type water separator for years and it always sucked (too bad it didn't suck water out of the line). For the average home shop user who uses the compressor once in a while for impact gun, impact chisel, whizzer wheel, etc, the M45 kit (M30 unit plus 2 extra filters for $61) is a no brainer.

    If you have a home shop set up like myself and have the bowl type filter, ask yourself how much water you drain out after each use? Maybe a teaspoon or so? At that rate, it would take many a moon to use up the first "toilet paper" filter from the M45 kit, then you still have 2 more. When they get soaked, new ones can be had for $6-8 anywhere (even at the LWS)

    I will be the first to admit that it is not the ideal set up for a pro shop, but for a home shop, the M30/45 as the main, along with a filter at the plasma unit itself (I got my LA-Man 520A for $35 on Ebay) just can't be beat for under $100. I have cool, dry air 75 ft away from my compressor.

    ETA: Just to add a thought. If I find that the M30 is getting wet too fast, all I would have to do is slip a drip style into my 1/2" line coming out of the compressor a few feet before the M30. 2 minute job.

    ETA #2: When I fired up my plasma for the first time last week, the first words that came out of my mouth were F***in' Cool!
    Last edited by jh225; 05-22-2009 at 03:38 PM.

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