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Thread: Mobile welding - need a specific generator?

  1. #1
    Join Date
    Jun 2020
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    Mobile welding - need a specific generator?

    Do welding units, such as a Multimatic 220 AC/DC (PDF spec sheet), need a specific generator to power it? For example, does that unit require the Miller Bobcat 260 (PDF spec sheet)? Or can cheaper generators be used?

  2. #2
    Join Date
    Apr 2008
    NW ON Canada
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    Re: Mobile welding - need a specific generator?

    You need a gen that can put out the required power demand that the welder requires to operate.
    Lincoln Idealarc 250 stick/tig
    Thermal Dynamics Cutmaster 52
    Miller Bobcat 250
    Torchmate CNC table
    Thermal Arc Hefty 2
    Ironworkers Local 720

  3. #3
    Join Date
    Mar 2010
    Ceres, California
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    Re: Mobile welding - need a specific generator?

    Look at the spec sheet. you need 31.3 amp of 230 volt power to operate at 200 amps. So you will need a generator that can supply that power all the time.
    watch out for peak power ratings. a generator can only supply peak power for a very short time. Used to start up a electric motor .
    welder can pull 7.5KW so a peak power 8KW generator may not have enough power.
    Watch the sales gimmicks, read the spec sheets and pick a good generator that can put of the power you need all day long.

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