Results 1 to 3 of 3

Lets close this deal! Induction motor stator

| A Day in the Life of a Scrapper
  1. #1
    jiffy117 started this thread.
    jiffy117's Avatar
    SMF Badges of Honor


    Member since
    Feb 2014
    Location
    Central NY
    Posts
    286
    Thanks
    220
    Thanked 341 Times in 147 Posts

    Lets close this deal! Induction motor stator

    I am in process of working with my employer to buy the core from used motors. They have been pretty good about working with me to buy all there scrap copper wire. The first motor weighs in a 767lbs! I removed both ends and removed the rotor. Was hoping to just chop one end of copper off and pull it through from other side but it was not as fast as I'd hoped. New plan is to just buy the stator whole. Cracked the cast iron casing open and removed the stator. Weighed in at 277lbs! My initial guess is that is 50% copper, which puts it right in the ballpark of 15% of total weight. I offered to pay employer the difference of what he would get if he sold the motor whole, hopefully he is ok with that. He keeps and scraps the motor housing. This will easily double my monthly copper weight, very exciting. Here is a pic of the stator and "deconstructed housing" Ha!





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


    Member since
    Feb 2013
    Location
    Central Kootenays, BC, Canada
    Posts
    861
    Thanks
    713
    Thanked 1,200 Times in 521 Posts
    You have an interesting deal.

    No photo yet....

    Isn't the copper very hard to remove in the big industrial motors? At least all the ones I've seen are heavily impregnated with varnish and even epoxy. They aren't coming out without a fight. I guess if you pull the stator out of the motor frame you can cut off the ends of the windings and get copper coil price for it.

    Is you employer in the motor rewinding business? Cause they will have an oven to burn off the guck out of the windings so they can remove the old wire. Maybe you can get use of it...

    Don't forget to have a good look at the rotors. The big motors sometimes have copper bars in them, or big chunks of aluminum that can be broken off the rotor.

    Good luck!!

    Jon.

  3. The Following User Says Thank You to sawmilleng for This Post:


  4. #3
    jiffy117 started this thread.
    jiffy117's Avatar
    SMF Badges of Honor


    Member since
    Feb 2014
    Location
    Central NY
    Posts
    286
    Thanks
    220
    Thanked 341 Times in 147 Posts
    no deal... did the math and I would only make like $20 per big motor. owner wants 0.32/lb... plus I assumed stator was 50% copper, but its actually only 20%. Bummer, but at least I figured it out before I hauled around they 800lb beasts!
    Last edited by jiffy117; 03-10-2014 at 02:25 PM.

  5. The Following 2 Users say Thank You for This Post by jiffy117:



  6. Similar threads on the Scrap Metal Forum

    1. Tip for removing copper from a electric motor stator.
      By Metalman65 in forum Scrap Metal Tips and Advice
      Replies: 3
      Last Post: 02-08-2013, 08:37 PM
    2. E-waste deal: I need your help negotiating a deal.
      By mrsamsonite in forum General Electronics Recycling
      Replies: 15
      Last Post: 12-11-2012, 10:52 PM
    3. string & paper on stator
      By pwa in forum Scrap Metal Questions and Answers
      Replies: 6
      Last Post: 04-22-2012, 11:14 PM
    4. Best way to get the stator out of big 3 phase electric motors
      By toula in forum Dismantling, Breaking Down & Maximizing Scrap
      Replies: 10
      Last Post: 03-19-2012, 11:37 PM
    5. Stator in shred or iron?
      By MetroRecycling in forum Scrap Metal Questions and Answers
      Replies: 7
      Last Post: 02-11-2012, 03:10 PM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

 
Browse the Most Recent Threads
On SMF In THIS CATEGORY.





OR

Tags for this Thread

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