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  1. #1
    Join Date
    Mar 2008
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    heathcote junction vic
    Age
    45
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    12

    Default Cigweld wire feed motor kaput - New welder recommendations or fix

    G'day Everyone

    My Cigweld Transmig 250 (circa 2001) wire feed motor died today. There is voltage getting to the motor but motor operation/rotation is very eccentric and quite often not at all. The motor is completely non serviceable.

    After numerous phone calls to Cigweld, welding repair companies, welding repair parts suppliers etc it appears that i am basically stuffed. The problem is that this era of welders uses a 12v motor whereas everything nowadays and most others historically are 24v or even higher. Using the incorrect voltage motor would upset my motor speed. The general consensus from everyone I have spoken to is that if I cant get the part then the welder is now scrap. The motor I require is a KSV 4030-215 12v. Cigweld have 1 drive unit assembly in stock for about $700. I don't need the full assembly, just the motor and at $700 I don't think the welder is worth that much.

    http://www.weldtronic.com.au/wp-cont...ve-Systems.pdf

    The above document has the motor I require but unfortunately they do not stock them any more and are unable to get them.

    As the collective knowledge here is quite formidable i am hoping that I can get the following questions answered.
    1) Does anyone know where I could get the correct motor from for a reasonable price?

    2) If the welder does end up as scrap then the age old question gets asked. What welder do I get? I would love a mig/ac&dc tig/plasma unit but the only one I can find is Token tools and there prices have gone up a lot since I last looked. I am looking at around $2000 for a new unit but within reason happy to buy individual units but i think that might blow the budget. Any suggestions on brands etc.

    Looking forward to hearing what the think tank come back with

    Thanks
    Yorin

  2. #2
    Join Date
    Sep 2005
    Location
    Bendigo
    Age
    60
    Posts
    419

    Default

    Have you looked if the motor is a standard brushed DC motor.

    If so maybe the brushes are worn out.

  3. #3
    Join Date
    Mar 2008
    Location
    heathcote junction vic
    Age
    45
    Posts
    12

    Default

    Quote Originally Posted by droog View Post
    Have you looked if the motor is a standard brushed DC motor.

    If so maybe the brushes are worn out.
    It is a DC motor and I wouldn't be surprised if the brushes are getting worn but it is completely sealed and unserviceable, I attempted to pull it apart but without complete destruction that is not going to be feasible.

  4. #4
    Join Date
    Apr 2021
    Location
    Adelaide
    Posts
    205

    Default

    You could try your luck with AliExpress, Wish etc.

    Like this: https://www.aliexpress.com/item/4001199058866.html

    This one is in Australia: https://www.ebay.com.au/itm/111135995700

    Jack

  5. #5
    Join Date
    Jan 2004
    Location
    Mackay North Qld
    Posts
    6,446

    Default

    Perhaps a bit of out of the box thinking then?

    Can the original 12v transformer be substituted for a 24 volt model ?

    If so, it is simple to use the wire driver motor of your choice.

    Grahame

  6. #6
    Join Date
    Mar 2008
    Location
    heathcote junction vic
    Age
    45
    Posts
    12

    Default

    I have considered converting to 24v, my biggest concern is that the wire speed adjustment is linked with the current, increase wire speed has a current increase as well, so i need the speed to be correct when compared to the current. seeing as i dont know what the original speed v's knob setting is it makes it tricky. I have checked the voltage driving the feeder and at the lowest setting it is a bit below 1v and at full speed it is 10.5v. The original wife feeder looks very similar to a windscreen wiper motor. It is a worm drive arrangement.

  7. #7
    Join Date
    Dec 2018
    Location
    NSW
    Posts
    586

    Default

    Quote Originally Posted by yozza View Post
    The original wife feeder
    Heh heh heh. Rule 34.

  8. #8
    Join Date
    Nov 2017
    Location
    Geelong, Australia
    Age
    57
    Posts
    2,651

    Default

    I see a difference between motor disassembly being destructive (as in requires reconstructing) and being destroyed.
    Cases can be cut open and then re-welded or a new case built etc.
    whether that’s worthwhile - only you can make that call.

    Quite a few 12 wire feed motors on AliExpress/eBay.

    Or perhaps a car windscreen wiper motor or power window motor could be adapted?

    Steve

  9. #9
    Join Date
    Mar 2011
    Location
    Southern Flinders Ranges
    Posts
    1,536

    Default

    Quote Originally Posted by Commander_Keen View Post
    Heh heh heh. Rule 34.
    Rule 32 applies as I reply under rule 25..

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