Results 1 to 18 of 18

Armature from motors?

| Scrap Metal Questions and Answers
  1. #1
    matt018 started this thread.
    matt018's Avatar
    SMF Badges of Honor


    Member since
    Dec 2010
    Location
    Southeast PA
    Posts
    174
    Thanks
    12
    Thanked 23 Times in 15 Posts

    Armature from motors?

    Hello I was curious if there was anything inside of an armature or if they are worth anyhting extra. Thank you for your time.



  2. #2
    Mick's Avatar
    SMF Badges of Honor



    Member since
    Aug 2010
    Location
    Palermo, Me
    Posts
    3,405
    Thanks
    363
    Thanked 3,086 Times in 1,326 Posts
    Lots of copper winding in both the armature and stator. Pain to get out, though.
    People may laugh at me, but that's ok. I laugh all the way to the bank.

  3. #3
    matt018 started this thread.
    matt018's Avatar
    SMF Badges of Honor


    Member since
    Dec 2010
    Location
    Southeast PA
    Posts
    174
    Thanks
    12
    Thanked 23 Times in 15 Posts
    Any tips on getting it out?

  4. #4
    Mick's Avatar
    SMF Badges of Honor



    Member since
    Aug 2010
    Location
    Palermo, Me
    Posts
    3,405
    Thanks
    363
    Thanked 3,086 Times in 1,326 Posts
    Quote Originally Posted by matt018 View Post
    Any tips on getting it out?
    Not really. I was using needle-nose pliers and unwinding it. Took forever and just not worth it. Actually the armature can be spread apart and pulled into two pieces which makes it easy. I could only get it done once. No matter how much I beat on it, I couldn't get it to budge. You'd need something that would hold the "teeth" and act as a "reverse vise". Maybe somebody here knows what would work? I had a whole pile of alternators and starters. Unwound a few dozen, but finally just hauled them and sold them as cores.

    The copper in the stator is much easier. That's what I go after.

  5. #5
    matt018 started this thread.
    matt018's Avatar
    SMF Badges of Honor


    Member since
    Dec 2010
    Location
    Southeast PA
    Posts
    174
    Thanks
    12
    Thanked 23 Times in 15 Posts
    I dont know what a stator is but is that the piece of laminated steel with a crapload of easy copper in it? And ok I will sell them as such.

  6. #6
    Mick's Avatar
    SMF Badges of Honor



    Member since
    Aug 2010
    Location
    Palermo, Me
    Posts
    3,405
    Thanks
    363
    Thanked 3,086 Times in 1,326 Posts
    The stator is the stationary part that surrounds the armature. If you take an alternator apart (remove the 2 or 3 long bolts holding case together), you the can pull the armature out from the stator. You'll have to cut a few wires connecting back.

  7. #7
    matt018 started this thread.
    matt018's Avatar
    SMF Badges of Honor


    Member since
    Dec 2010
    Location
    Southeast PA
    Posts
    174
    Thanks
    12
    Thanked 23 Times in 15 Posts
    Ok I know what you mean.

  8. #8
    Saroro's Avatar
    SMF Badges of Honor

    Member since
    Nov 2010
    Location
    Apalachin, New York, United States
    Posts
    242
    Thanks
    72
    Thanked 71 Times in 44 Posts
    This sounds like a challenge! I wish I hadn't turned in the armature from my dryer motor now. I would have tried getting into it now. I'll have to "examine" the next one.

  9. #9
    injunjoe's Avatar
    SMF Badges of Honor



    Member since
    Jan 2011
    Location
    Central, FL
    Posts
    1,309
    Thanks
    1,249
    Thanked 1,194 Times in 594 Posts
    Armature, The part of a motor that spins. Stator, is the stationary part surrounding the Armature.

    Grandpa would be proud, thanks Grandpa, I have listened and learned all I could!

    God rest his wonderful, loving, educating sole!

    "Listen to what others try to teach, take what you need, leave the rest!"

  10. #10
    injunjoe's Avatar
    SMF Badges of Honor



    Member since
    Jan 2011
    Location
    Central, FL
    Posts
    1,309
    Thanks
    1,249
    Thanked 1,194 Times in 594 Posts
    Oh sorry to answer your question , the arm. is most times made of steel with cast Al ends. The Al makes it lighter saving friction thus less energy used to spin the shaft. That employs the ER ratings, but that is not of concern here!
    The steel reacts to the mag. created by to current through the windings in the Stat. and therefore making the motor spin.
    Motors with wound Arm. work the same way just different. LOL

    Sorry to be long but I like to know how things work before I destroy them!

  11. #11
    Saroro's Avatar
    SMF Badges of Honor

    Member since
    Nov 2010
    Location
    Apalachin, New York, United States
    Posts
    242
    Thanks
    72
    Thanked 71 Times in 44 Posts
    So how do you know which armatures are just steel, and which ones are wound copper? Will the copper be visible in the armature, or will there be a a shell around it?

  12. #12
    injunjoe's Avatar
    SMF Badges of Honor



    Member since
    Jan 2011
    Location
    Central, FL
    Posts
    1,309
    Thanks
    1,249
    Thanked 1,194 Times in 594 Posts
    Yes the copper will show. One part will be wound with copper wires the other will be steel.
    The more motors you cut open, or take apart the more you will see what I speak of.
    Take a hand mixer apart the armature is wound as a posed to a condenser motor, were the stator is wound.

    As Mentioned by Kris Kringle, the fun is in the learning and taking things apart.
    learning about the stuff you disassemble may help land a job when things get tough!

    When there is a stator that is wound with a welded casing around it just use your cutoff wheel with caution and release the core. After the core is in hand it should be old hat from there. I have described how easy it is to remove the copper from there. "A walk in the park"

  13. #13
    Saroro's Avatar
    SMF Badges of Honor

    Member since
    Nov 2010
    Location
    Apalachin, New York, United States
    Posts
    242
    Thanks
    72
    Thanked 71 Times in 44 Posts
    OH I get it! One or the other is copper. I see. Thanks! Thought that both had copper at same time. lol

  14. #14
    injunjoe's Avatar
    SMF Badges of Honor



    Member since
    Jan 2011
    Location
    Central, FL
    Posts
    1,309
    Thanks
    1,249
    Thanked 1,194 Times in 594 Posts
    Quote Originally Posted by Saroro View Post
    OH I get it! One or the other is copper. I see. Thanks! Thought that both had copper at same time. lol
    Funny you mention both being with copper, the very old motors were wound that way! With energy being in mind these days modern motors have come a long long way! Using less electric to get more horse power! But that is another subject all together! I am not just a scrapper, I am a HVAC tec that scraps. It is a great way to unwind while making a profit!

  15. #15
    SMF Badges of Honor

    Member since
    Dec 2013
    Location
    South Carolina
    Posts
    1
    Thanks
    0
    Thanked 0 Times in 0 Posts
    I have a few questions regarding removing copper windings from armatures.

    What would the be the best way to remove the copper from the armature?

    Is worth trying to remove myself or is it better to sell the armature as a whole and avoid the headache?

    Would a scrap metal facility even be interested in large volumes of miter saw armatures?

  16. #16
    SMF Badges of Honor



    Member since
    Jul 2011
    Location
    Jacksonville, NC
    Posts
    4,917
    Thanks
    15,632
    Thanked 5,861 Times in 2,713 Posts
    My experience says put the armatures in the motor bucket and leave it at that. Attempts to remove the copper windings proved to be far too time consuming. Mike.
    "Profit begins when you buy NOT when you sell." {quote passed down to me from a wise man}

    Now go beat the copper out of something, Miked

  17. The Following 2 Users say Thank You for This Post by miked:


  18. #17
    eesakiwi's Avatar
    SMF Badges of Honor



    Member since
    Dec 2010
    Location
    NZ
    Posts
    2,531
    Thanks
    2,909
    Thanked 2,556 Times in 1,227 Posts
    I cut the Copper loops off the end thats easy to get too, using a angle grinder.
    Then I pick out the loops.

    Then I start bashing the Copper contacts & they break & fall out. They have bits of insulation/bakelite stuck to it, so its pick it off or give it the 'fire treatment'.

    But mostly the wire is really stuck in there with Varnish, so I burn that off in a fire when I do all the other stuff I have saved up, that needed the fire treatment...

    (Armature can be any part that has wires on it, but mostly the inner rotating part with Copper wire in it) Armature (electrical engineering) - Wikipedia, the free encyclopedia

  19. #18
    thriver's Avatar
    SMF Badges of Honor

    Member since
    Oct 2013
    Location
    los lunas nm
    Posts
    2
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Yep fire is the way to go


  20. Similar threads on the Scrap Metal Forum

    1. Motors
      By BRASSCATCHER in forum Scrap Metal Spots
      Replies: 3
      Last Post: 02-18-2012, 06:22 PM
    2. Motors
      By Copper Head in forum A Day in the Life of a Scrapper
      Replies: 3
      Last Post: 02-04-2012, 01:07 AM
    3. Motors
      By Copper Head in forum A Day in the Life of a Scrapper
      Replies: 6
      Last Post: 01-06-2012, 01:56 PM
    4. I Have 3 Armature Arms
      By Dawsey in forum Scrap Metal Questions and Answers
      Replies: 3
      Last Post: 07-24-2011, 03:25 PM
    5. Motors?
      By Adam in forum Scrap Metal Tips and Advice
      Replies: 9
      Last Post: 06-30-2011, 02:16 PM

Thread Information

Users Browsing this Thread

There are currently 5 users browsing this thread. (0 members and 5 guests)

 
Browse the Most Recent Threads
On SMF In THIS CATEGORY.





OR

Bookmarks

Posting Permissions

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

The Scrap Metal Forum

    The Scrap Metal Forum is the #1 scrap metal recycling community in the world. Here we talk about the scrap metal business, making money, where we connect with other scrappers, scrap yards and more.

SMF on Facebook and Twitter

Twitter Facebook