Miller Big 20 welder/generator
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  1. #1
    Join Date
    Jun 2010
    Location
    Kansas City Missouri
    Posts
    30

    Miller Big 20 welder/generator

    Looking for some advice on a Miller Big 20. Talking to a guy who has the Big 20 and wants to sell it. It currently does not run. In fact he has the motor completely tore out of the welder and down into component parts. I was told the welder's motor had a knock in it so he was going to rebuild the motor. I was also told the welder portion did weld and the motor was the only issue.

    The cuurent owner wants $550.00 for the machine just as it is now, motor out and in pieces. My concerns are does the machine really weld ok or is it going to be a problem too. Not sure what motor, Continental or other motor it has. Thinking the $550.00 is a bit much for a welder with these unknowns and in this state of tear down. I know parts area available for most motors, but I perfer to do the taking out and the disassembly to remember how everything goes back in.

    Is this Miller big 20 worth the $550.00 he's asking. Worked on several Lincoln SA200's but never a MIller welder/generator can parts be had for then also... Told it was a 1979 machine..

    Any help on this would be great.
    Miller 180
    Miller Dialarc HF 250
    lincoln SA200

  2. #2
    Join Date
    May 2008
    Location
    Orange, TX
    Posts
    10,325

    Re: Miller Big 20 welder/generator

    Finally replied to your PM steamboat519. Sorry for the delay.
    MM200 w/Spoolmatic 1
    Syncrowave 180SD
    Bobcat 225G Plus - LP/NG
    MUTT Suitcase Wirefeeder
    WC-1S/Spoolmatic 1
    HF-251D-1
    PakMaster 100XL
    SA-200 Blackface Code# 8638
    Star Jet 21-110

    Two term limit - one in office, one in jail.

  3. #3
    Join Date
    Sep 2009
    Location
    western ks
    Posts
    289

    Re: Miller Big 20 welder/generator

    steamboat, just curious but where did you find the big 20 for sale? iwas looking at the same machine probly lol. the one i was looking at wasin the same shape condition i believe it was in emporia ks i think. however im not goin to buy it too much for not enuf guarentees.
    MM 251
    MM 135
    Lincoln Pro cut 55
    Bobcat 250
    Miller Thunderbolt ac/dc
    older ac forney
    Jackson nexgen 3n1
    3-Smith OP setups
    97 Dodge diesel
    Makita chopsaw
    Jet swivel head bandsaw
    lincoln tig 300/300
    30a spoolgun
    puma port. gas air comp.

  4. #4
    Join Date
    Jun 2010
    Location
    Kansas City Missouri
    Posts
    30

    Re: Miller Big 20 welder/generator

    Might be the same guy, I walked on the machine also. Just at you said "not enuf guarentees".
    Miller 180
    Miller Dialarc HF 250
    lincoln SA200

  5. #5
    Join Date
    Sep 2009
    Location
    western ks
    Posts
    289

    Re: Miller Big 20 welder/generator

    i hear you had to pass.
    MM 251
    MM 135
    Lincoln Pro cut 55
    Bobcat 250
    Miller Thunderbolt ac/dc
    older ac forney
    Jackson nexgen 3n1
    3-Smith OP setups
    97 Dodge diesel
    Makita chopsaw
    Jet swivel head bandsaw
    lincoln tig 300/300
    30a spoolgun
    puma port. gas air comp.

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