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Thread: Salvaged Cold Saw

  1. #1
    Join Date
    Oct 2002
    Posts
    1,179

    Default Salvaged Cold Saw

    Based on the recommendations of the group,
    and the price (free!), I picked up this cold saw.
    This isn't the same one I saw (previous post),
    but same condition, only he wouldn't give me
    any other blades. Its got "electrical issues".
    In fact, we plugged her in, the LED blew, and some
    magic smoke escaped from the control box on top.

    Its still on my truck (gotta figure a way to get it
    off!) -- they had an overhead crane.

    Its a "Thomas" -- some websearching always comes
    up with Drake Thomas -- and the bases (stand)
    look the same, but couldn't find a spec.

    Nameplate info is all in Italian. See pix below.








  2. #2
    Join Date
    Oct 2002
    Posts
    1,179

    Default

    This is my favorite part. Owner said the saw gave out during a cut.
    They never got it sorted / had the chance to try the welded blade.


  3. #3
    Join Date
    Aug 2002
    Location
    Albuquerque
    Posts
    1,962

    Default

    I'd get rid of that blade first off. Next is the power supply, 380 v 50 Hz
    should be OK on 440v 60Hz but I'd put a "buck/boost" (in buck) on
    the power. The connections look like you have the option of
    1800 or 3600 rpm . Looks like a fun project. Get the motor/controls
    all worked out before buying a blade, just in case. :-)
    ...lew...

  4. #4
    Join Date
    Aug 2006
    Location
    Taylorsville Ky
    Posts
    5,873

    Default

    get rid of that blade fast. It's hard to tell what happened to the electrics without a wiring diagram and you will need a parts list breakdown.

    If it gave out in a cut it's my guess they overloaded it and burned the motor up but only testing will tell. I suspect it's going to need some motor work.

    EDIT: I think he is in Italy so voltage is not a problem.
    It's only ink and paper

  5. #5
    Join Date
    Dec 2009
    Location
    Owensboro KY
    Posts
    3,538

    Default

    1) Take the motor to a rewind shop and see if they can repair it and change the voltage to 220 or 440.

    2) Post a pic of the blade in the Darwin Awards web site

  6. #6
    Join Date
    Aug 2006
    Location
    Taylorsville Ky
    Posts
    5,873

    Default

    I think knucklehead is in Italy so the 50 cycles and voltage is not an issue.

    Remember, everyone that posts here in not in the Hew Hess of Hay and many don't post their location.
    It's only ink and paper

  7. #7
    MrSleepy Guest

    Default

    Very nice machines .. I'd have it off you in a heart beat...

    Rob

  8. #8
    Join Date
    Oct 2002
    Posts
    1,179

    Default

    Thanks all for the quick replies. I'd be lie'n if I said I'm not
    looking forward to tearing into this thing. Ever since I got
    rid of the big band saw I've been a hacksaw and angle grinder
    guy -- its not fun.

    I'm curious to know if anyone recognizes this thing.
    Its got to be rebranded here in Italy. "Thomas" just doesn't
    sound very italian to me. Would love to find a parts breakdown
    and wiring diagram.

    -Tony

  9. #9
    Join Date
    Oct 2002
    Posts
    1,179

  10. #10
    MuellerNick Guest

    Default

    Don't forget, it's a 3-phase motor!
    Either in star or delta, you have 1400 or 2800 rpm (at the motor, not the blade). and 2 or 3 hp (=cv).


    Nick

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