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Regulator and plumbing assembly for a Lincoln SP100

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  • #1

    Regulator and plumbing assembly for a Lincoln SP100

    I have an old SP100 wire feed that has a built in gas valve. I want to set it up to run gas shielding(Currently running flux core) for cleaner welds... I get ALOT of spatter and it is driving me NUTS!!!

    Does anybody have a regulator head and hose from 1 of these anymore that is not being used?
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  • #2
    For those not familiar with an SP100, it's an older Lincoln MIG welder. It features continuously variable voltage and feed speeds. It's transformer, not inverter. It runs off a 20 or 30 amp 110V supply. and will work with fluxcore as well as with gas. It's a very handy little welder with a good duty cycle.

    I have an SP100. The regulator is external, mounting on the tank. A low pressure hose runs from the regulator to the welder.

    This cheap one ($40) from harbor freight does work. https://www.harborfreight.com/regula...uge-94841.html




    Dan
    Last edited by danlb; 06-10-2019, 02:42 PM.
    At the end of the project, there is a profound difference between spare parts and extra parts.

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    • #3
      From what I am reading you need a flow gauge(regulator) and a gas hose.
      Your spatter could be related to polarity. Check the inside of the machine door and set per the chart.

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      • #4
        Originally posted by danlb View Post
        For those not familiar with an SP100, it's an older Lincoln MIG welder. It features continuously variable voltage and feed speeds.

        Dan
        The one I have varies in steps, not continuously. Don't remember just when I bought it ...probably late 90's or early 2000's. Not long afterwards I started seeing a different model occupying that sales niche.

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        • #5
          Originally posted by lynnl View Post
          The one I have varies in steps, not continuously. Don't remember just when I bought it ...probably late 90's or early 2000's. Not long afterwards I started seeing a different model occupying that sales niche.
          You must have the SP-100T model. The T is for 'tapped'. From the Lincoln site,
          The SP-100, Type K462, is a complete semiautomatic constant voltage DC arc welding machine. Included is a solid state controlled, single phase constant voltage transformer/ rectifier power source and a wire feeder for feeding .023 – .030" (0.6 – 0.8 mm) solid steel electrode and .035" (0.9 mm) cored electrode.
          Dan
          At the end of the project, there is a profound difference between spare parts and extra parts.

          Comment

          • #6
            Sorry, I was wrong. That term "SP-100" looked so familiar, I think because I remember it from back when I was welder shopping.

            Upon googling and seeing the words Weld Pak 100 I realized that is what I ended up getting.
            ... As you might guess, I haven't used it in recent years.

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