Miller Electric

Welding Discussion Forums

Home » Resources » Communities » Welding Discussion Forums
 
Miller Welding Discussion Forums - Powered by vBulletin

Results 1 to 10 of 10
  1. #1
    Join Date
    Sep 2008
    Location
    southwestern ohio
    Posts
    272

    Default convert old mig to wire feeder

    Can i conver a an old mig to a wire feeder?
    Here are my thoghts get a mig suchas a hobart handler(or similerly sized mig from ther copany) remove the coils and transformer and anything else that converts the power from the wall to welding curent. Then conect it to a constant voltage output (engine drive set for CV).

  2. #2
    Join Date
    Aug 2008
    Location
    Phelps, NY
    Posts
    70

    Default

    I bet it could be done but I question what benefit you will see. I would look for an older wire feed to match with the machine you have now. I don't think you will save any money by hacking a small MIG unless you have it on hand and a standalone feeder will likely be better made and last longer than the components in a HH wire feed.

    What CV machine do you have?

  3. #3
    Join Date
    Aug 2008
    Location
    Phelps, NY
    Posts
    70

    Default

    Another thing to consider is that even if you did modify a HH you would need to start with a machine the same size as the power source you'll be using. You can't use a HH130 wire feed on a 300A engine driven welder as it can't handle the current.

  4. #4
    Join Date
    Aug 2008
    Location
    Krefeld, Germany
    Posts
    18

    Default

    Quote Originally Posted by Zebu Fellenz View Post
    You can't use a HH130 wire feed on a 300A engine driven welder as it can't handle the current.
    Of course you can. But you'll have to know the limitations or you'll fry the little feeder.
    Nothing wrong with using a small gun on a large machine for tight space / low power jobs. Or do you think that all those small, but high quality guns are only made for upgrading Harbor Freight welders? Nevertheless, a real feeder unit is way stronger and you would usually have a quick disconnect for different guns.
    Steffen
    Krefeld, Germany

  5. #5
    Join Date
    Oct 2006
    Location
    Mpls, MN
    Posts
    1,790

    Default

    You need a drive mechanism intended for constant current to run it off a stick power supply like your mobile rig. Just gutting a mig machine is only part of the problem. The wire speed rate will be determined by the arc length, and without a robot welding for you, that length will vary with your every move.

    Keep an eye on CL and ebay. I just sold a 24' Push-Pull Hobart suitcase feeder with both CC and CV capabilities (perfect for what you want) - it went for $260 delivered. I bought a brand new Airco feeder for $130 delivered about 6 months ago. The deals are out there, but you need to be looking for them.
    Syncrowave 250DX
    Invison 354MP
    XR Control and 30A

    Airco MED20 feeder
    Thermal Dynamics Cutmaster 81
    Smith O/A rig
    And more machinery than you can shake a 7018 rod at

  6. #6
    Join Date
    Mar 2008
    Location
    Anchorage AK
    Posts
    344

    Default

    Can I ask really strange and obscurer questions.

    Can I remove the engine from my car and replace it with a steam plant and electric motors and then put it in the garden.

    If I walk to work and you eat pie will the Jets win the World Series.

    Yes Mr. Melter you can as long as it is legal in your area you can do anything you wish.

    Good luck

  7. #7
    Join Date
    Dec 2007
    Location
    Los Angeles
    Posts
    2,876

    Default

    Do these engine drives not have AUX power?
    Ed Conley
    http://www.screamingbroccoli.net/
    MM252
    MM211
    Passport Plus w/Spool Gun
    TA185
    Miller 125c Plasma 120v
    O/A set
    SO 2020 Bender
    You can call me Bacchus

  8. #8
    Join Date
    Oct 2006
    Location
    Mpls, MN
    Posts
    1,790

    Default

    I think the issue is that he's already got the welding power supply, and just wants to add GMAW capability to it rather than having to buy another full welder just to use his engine drive as a gen set.

    The problem is that a decent suitcase CV/CC feeder is going to cost as much as a whole MM212 new. Used they fetch a good premium as well, but if there's an oddball out there, you can do pretty good.
    Syncrowave 250DX
    Invison 354MP
    XR Control and 30A

    Airco MED20 feeder
    Thermal Dynamics Cutmaster 81
    Smith O/A rig
    And more machinery than you can shake a 7018 rod at

  9. #9

    Default

    Quote Originally Posted by Fishy Jim View Post
    You need a drive mechanism intended for constant current to run it off a stick power supply like your mobile rig. .


    He just said an engine drive set to cv
    So no, he doesn't need a feeder intended for cc.

    JTMcC.
    Some days you eat the bear. And some days the bear eats you.

  10. #10
    Join Date
    Feb 2005
    Location
    N.E. SD
    Posts
    1,379

    Default

    And, since he has CV capabilities, he can buy almost any old wire feed on Ebay and cable it up and run it.
    I have two old Miller 30A feeders that still push wire.
    Jeff

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Warning: Function split() is deprecated in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/footer.inc.php on line 82

Welding Projects

Special Offers: See the latest Miller deals and promotions.