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  1. #1
    Join Date
    Sep 2011
    Location
    kallangur qld
    Posts
    27

    Default EMCO UNIMAT #3 replacement motor

    Hi All,

    I have a Unimat 3 , which is I suppose 30 years old , the motor has died with low impedence and internal damage due to wear.

    I am after a replacement motor if possible.

    Does anyone have a motor which will fie ??

    suggestions appreciated

    vk4
    Jeff

  2. #2
    Join Date
    Nov 2006
    Location
    Heidelberg, Victoria
    Age
    79
    Posts
    2,074

    Default Try this company

    This UK company seem to deal in Emco Unimat parts, could be worth a try.

    www.emcomachinetools.co.uk

    Ken

  3. #3
    Join Date
    Jun 2008
    Location
    Victoria, Australia
    Age
    74
    Posts
    5,080

    Default

    This guy replaced his unimat 3 motor with a 24v DC motor and controller...

    Remplacement du moteur d'origine d'un tour EMCO UNIMAT 3 par un moteur CC 24V de trottinette électrique - Civade.com

    Translation is ok with google translate.

    Regards
    Ray

  4. #4
    Join Date
    Oct 2004
    Location
    Southern Highlands NSW
    Posts
    1,894

    Default

    The Unimat4, Asian version of U3, has a more powerful and 100% duty cycle motor.

    Jordan

  5. #5
    Join Date
    Aug 2007
    Location
    Melbourne
    Age
    68
    Posts
    1,410

    Default

    The original motor is a "universal" type brushed motor very much like a sewing machine motor of less than 100W power. The small rubber O-ring (5mm?) used to drive the spindle will not allow any more power to be transmitted. A used sewing machine motor with foot pedal variable speed may be a good candidate for a cheap replacement. However, the original Unimat motor was very well made, sure it cannot be fixed? Maybe this site has some hints:
    motortips

    Me personally, I would probably go for a 1/8HP 3-phase motor with a 100W VFD, but it may take some time to source both at a reasonable NOS price from eBay. I am right now doing something very similar: replacing the 70W single phase motor of my TOYO 210 mill head with a used 80W 3-phase motor salvaged from an old Swiss chemistry distiller found in the tip of an university, and an Omron mini v7 VFD (120W) I bought NOS on eBay for about $60. But it took a while to find all parts for that cheap. Chris

  6. #6
    Join Date
    Sep 2011
    Location
    kallangur qld
    Posts
    27

    Default

    Hi All ,
    Thanks for the reply's, I am unsure about the repair-ability of the motor, a friend is looking into it at the moment,

    I would not mind the Unimat4 motor , I will look into the cost.

    A 3 phase motor is not an option as I don't have 3 phase power.

    Although the sewing machine motor could be a viable option.

    Jeff

    vk4

  7. #7
    Join Date
    Oct 2011
    Location
    Norwood-ish, Adelaide
    Age
    59
    Posts
    6,540

    Default

    I have a small 230V Bodine motor that I got years ago for one of those "one day" projects. It's rated at 1/50 hp though. The 3 phase motor suggestions aren't too bad though as at the sort of load you are talking about a small VFD would easily convert single phase into 3 phase.

    Michael

  8. #8
    Join Date
    Sep 2011
    Location
    Ballarat
    Age
    65
    Posts
    3,103

    Default

    Hi Jeff,
    I don't know if it helps but I fitted a sewing machine motor to my shaper and it works a treat...so far.

    Phil
    Clutch for the Douglas shaper - YouTube

  9. #9
    Join Date
    Oct 2004
    Location
    Southern Highlands NSW
    Posts
    1,894

    Default

    Quote Originally Posted by Steamwhisperer View Post
    Hi Jeff,
    I don't know if it helps but I fitted a sewing machine motor to my shaper and it works a treat...so far.

    Phil
    Clutch for the Douglas shaper - YouTube
    That's probably a bit big for a Unimat, but looks great on the Douglas.

    Jordan

  10. #10
    Join Date
    Sep 2011
    Location
    Ballarat
    Age
    65
    Posts
    3,103

    Default

    Quote Originally Posted by nadroj View Post
    That's probably a bit big for a Unimat, but looks great on the Douglas.

    Jordan
    Thanks Jordan,
    thought it might be a bit big.

    Phil

  11. #11
    Join Date
    Sep 2011
    Location
    kallangur qld
    Posts
    27

    Default

    Thanks, the Douglas conversion is too big , I have found that Unimat 4 motors will fit, but the price tag is ridiculous , at over $300 Australian.


    I am hopeful that we can rebuild the old motor.

    Jeff

    vk4

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