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Comparing stick welding- Syncrowave 200 & Maxstar 150 S

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  • Comparing stick welding- Syncrowave 200 & Maxstar 150 S

    I noticed welding with the Syncrowave the rod does not stick as much as it does with Maxstar. Is this because of the OCV differences.? Also, I had the dig function off while making these comparisons. I was using a 7018 rod.
    Syncrowave 200
    Millermatic 252
    Spoolmatic 30A aluminum gun
    Miller Spectrum 625 X-Treme
    Maxstar 150 S
    Miller Bobcat 250
    Sketchup 8 Pro

    Two big fire extinguishers

    "I'm a slow walker, but I never walk backwards" - Abraham Lincoln

  • #2
    Transformer power source versus inverter. Dig should be used for cellulose type rods.
    Lincoln Idealarc 250 stick/tig Miller Bluestar 2E Thermal Arc Hefty 2 feeder Thermal Dynamics Cutmaster 52 Torchmate CNC table Ironworker Welder Operating engineer Owner/Operator Devlin Metal Works Custom CNC Plasma Cutting and Welding

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    • #3
      It's the VA curve. This is good info:

      http://www.millerwelds.com/resources...rticle108.html
      Miller stuff:
      Dialarc 250 (1974)
      Syncrowave 250 (1992)
      Spot welder (Dayton badged)

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      • #4
        In the RESOURCES, ARTICLES section, search for "selecting a constant current". There's an article describing this. (I can't link directly until the post is approved.)
        Miller stuff:
        Dialarc 250 (1974)
        Syncrowave 250 (1992)
        Spot welder (Dayton badged)

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        • #5
          Well they definitely differ in their arc-initiation and arc-stability qualities, offering a nice contrast of inverter vs. transformer stick machines.

          I set my Syncro 200 at 20%+ Dig for 7018 and 30%+ for 6010 to keep from sticking the electrodes. Both light up easier with 80V OCV on the Syncro. The 150S Maxstar tries to compensate for a low OCV ~15V sensing voltage on the cellulosic rods with Hot Start, but can be tough to light off even 6011 on anything but clean, warm metal and a solid ground. I always run it on 230V, same as the Syncro. The 150S definitely doesn't run 6010 very well at all.

          The Maxstar's manual shows a huge amperage jump at 40V so it can sense a close arc and keep the rod going by increasing amperage, this without an inductance (Dig) control button. You can stick the electrode on both, but you can reduce it more with the Syncro's Dig control.

          The Maxstar inverter arc is smoother than the Syncro's transformer arc with both types of rods once lit.
          Dynasty 350
          Bobcat 250
          Maxstar 150S
          Titanium 9400
          Purox O/A
          Cutmaster 42

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          • #6
            Try to decrease your dig as you weld ive found its better to run no dig because not all welders have that setting

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            • #7
              Originally posted by Danarc View Post
              The Maxstar inverter arc is smoother than the Syncro's transformer arc with both types of rods once lit.
              Interesting. I've had almost the opposite experience/impression with the two machines.

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              • #8
                I say the tranny is a fuzz better on starts, you get used to it and the difference is pretty minor.

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                • #9
                  I have run four or five different inverters, and all of them start the arc better than the transformer machines I have used.

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                  • #10
                    Somewhere in the brochure for the Maxtar STL 150 they say that it works best with 6011.
                    We did not like the way it burns 7018 or 6010.

                    Its a great tig machine.

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