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  1. #1
    acro2eaa Guest

    Default mm140 portable power

    I have a mm140 I am quite happy with. Use it in my Home/Shop, plug it in anywhere, welds like a banshee. Today I borrowed my dads old Honda EM3000 generator to go out and repair/replace some pipe fence. Low and behold it wouldn't weld worth a %*^(. I'm not an electrician but I thought that generator would power it fine. Guess not.

    Any advise on what minimum/adequate generator it would take to power that welder.

    thanks

  2. #2
    Join Date
    Oct 2005
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    I ran my MM135 off of a Honda EB3500 with ok results. It would not weld on the upper end at all but the mid range and lower was fine. My guess would be 4000w would get it going just fine. Is your 3000 peak or continuous wattage? From the sound of it, it may be peak watts. In which case, you are running in the 2200-2500 watt range which isn't quite enough.
    Don


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  3. #3
    Join Date
    Jan 2006
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    Quote Originally Posted by DDA52 View Post
    I ran my MM135 off of a Honda EB3500 with ok results. It would not weld on the upper end at all but the mid range and lower was fine. My guess would be 4000w would get it going just fine. Is your 3000 peak or continuous wattage? From the sound of it, it may be peak watts. In which case, you are running in the 2200-2500 watt range which isn't quite enough.
    I ran my EZ125 on a 3.5K Genset (old job with no name that I could find) on a fence job, didn't have any problems.
    Regards, George

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  4. #4
    Join Date
    Sep 2002
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    Default

    I said it with more words in the thread on the other board, but consider the quality of the power too, esp. with a machine that has more electronics than others.

  5. #5
    Join Date
    Mar 2007
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    Good question I always wondered about
    I wanted to buy a normal generator from Home Depot, say...a 8,000watt continuous powered one. Few people mentioned to me that a welder/generator puts out cleaner power than a regular generator. That's why it works better for welding. Any truth to that? I was wondering for some reason if the electronics were better on the welding generator...
    bert
    I'm not late...
    I'm just on Hawaiian Time

  6. #6
    Join Date
    Sep 2002
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    Quote Originally Posted by Bert View Post
    ...Few people mentioned to me that a welder/generator puts out cleaner power than a regular generator. That's why it works better for welding. Any truth to that? ...
    Not that I know of. For example, the Miller Bobcat is a 10kW generator with a skewed rotor that has very clean power. But it's a marginal welding machine, good for occasional use, but not designed for the pros.

    The Trailblazer is an awesome welding machine, and has clean power, but it's not as good as the Bobcat for power quality, though its seperate rotor for welding means the two processes don't interfere with one another.

    Now, there are probably many machines where the two are related because of the size and quality of the machine as a whole.

    I would say that generators in the same price point as an engine-driven welding machine should have power of the same, if not better quality.

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