Results 1 to 15 of 15

Copper transformer cleaning

| Scrap Metal Tips and Advice
  1. #1
    endmill started this thread.
    SMF Badges of Honor


    Member since
    Dec 2013
    Location
    Nashport,Oh
    Posts
    14
    Thanks
    1
    Thanked 3 Times in 2 Posts

    Copper transformer cleaning

    Got 200 lb. Took to scrap dealer they said if i clean them up they will give me #2 price. Got paper and tape all over them. Any tips and tricks?



  2. #2
    SMF Badges of Honor

    Member since
    Jun 2017
    Location
    Las Vegas
    Posts
    597
    Thanks
    1,926
    Thanked 1,061 Times in 385 Posts
    Depends what kind of transformer really. Some you can clean quickly with a hammer and broad chisel or hatchet. (search the forum or youtube for how to videos). Others have staggered iron plating and a sawzall through the copper itself is faster. You shouldn't have to worry about cleaning the paper and stuff. Should go as #2 either way. Also if you keep that steel separate from your other iron steel you might be able to get 5-8x normal steel prices for it, depending on the yard. Some places it just goes as HMS prep or tin but it's a specific steel that goes for higher than stainless at the right yards

  3. The Following 2 Users say Thank You for This Post by JJinLV:


  4. #3
    ragstoriches's Avatar
    SMF Badges of Honor

    Member since
    Oct 2015
    Location
    Western MA
    Posts
    89
    Thanks
    245
    Thanked 128 Times in 45 Posts
    Best to try another scrap yard. They may take it as is and save you the trouble of cleaning it up. Otherwise you may try soaking it in something that removes the glue. That way you don't have to do much manual labor.

  5. The Following User Says Thank You to ragstoriches for This Post:


  6. #4
    hills's Avatar
    SMF Badges of Honor


    Member since
    Sep 2017
    Location
    Maine
    Posts
    245
    Thanks
    131
    Thanked 330 Times in 161 Posts
    I'll second what JJ was saying. It depends on the transformer.

    The smaller ones with lots of yellow tape in the windings don't seem to be worth fussing with.They're more often found on the high voltage side of a printed circuit board. The metal is something like an irony ceramic and quite brittle. You can hit them with a hammer and break em' -or- crush them in a vise.

    The larger ones with a solid copper winding seem more worth doing. You can put them in a vise and cut the end off with a chisel or a sawzall. Personally, i prefer a razor sharp wood chisel.It cuts through the copper winding like a hot knife through butter without making a mess of the shop.

    I've been thinking about making a number of rectangular shaped punches out of scrap steel. Having the right sized punch would make it easier to pop the copper winding out once the end had been cut off. It's a little bit of time on the front end to make them but a specialty tool would save time for years to come.

  7. #5
    msmoorad's Avatar
    SMF Badges of Honor


    Member since
    Apr 2013
    Location
    Durban, South Africa
    Posts
    611
    Thanks
    614
    Thanked 680 Times in 323 Posts
    show us some pics of it

  8. #6
    greytruck's Avatar
    SMF Badges of Honor



    Member since
    Jan 2012
    Location
    Thornton, Illinois
    Posts
    1,406
    Thanks
    1,100
    Thanked 1,021 Times in 559 Posts
    1st make sure its not aluminum windings....

  9. The Following 2 Users say Thank You for This Post by greytruck:


  10. #7
    endmill started this thread.
    SMF Badges of Honor


    Member since
    Dec 2013
    Location
    Nashport,Oh
    Posts
    14
    Thanks
    1
    Thanked 3 Times in 2 Posts
    Im down to the copper windings.

  11. #8
    endmill started this thread.
    SMF Badges of Honor


    Member since
    Dec 2013
    Location
    Nashport,Oh
    Posts
    14
    Thanks
    1
    Thanked 3 Times in 2 Posts
    No aluminum

  12. #9
    endmill started this thread.
    SMF Badges of Honor


    Member since
    Dec 2013
    Location
    Nashport,Oh
    Posts
    14
    Thanks
    1
    Thanked 3 Times in 2 Posts
    Trying to figure out ro post pictures from my phone. Help

  13. #10
    SMF Badges of Honor

    Member since
    Jun 2017
    Location
    Las Vegas
    Posts
    597
    Thanks
    1,926
    Thanked 1,061 Times in 385 Posts
    If you're down to the copper windings already you should be good. Most yards will take that as number 2, i can guarantee they're going to sell it as number 2. Assuming these transformers have that thinly layered steel, ask your yard about getting a "silcon steel" or "electrical steel" price for it.

  14. #11
    endmill started this thread.
    SMF Badges of Honor


    Member since
    Dec 2013
    Location
    Nashport,Oh
    Posts
    14
    Thanks
    1
    Thanked 3 Times in 2 Posts

    picture

    Got it !
    Attached Images Attached Images  

  15. The Following 2 Users say Thank You for This Post by endmill:


  16. #12
    endmill started this thread.
    SMF Badges of Honor


    Member since
    Dec 2013
    Location
    Nashport,Oh
    Posts
    14
    Thanks
    1
    Thanked 3 Times in 2 Posts
    Here's a picture
    Attached Images Attached Images  

  17. #13
    mikeinreco's Avatar
    SMF Badges of Honor


    Member since
    Dec 2011
    Location
    TENNESSEE
    Posts
    4,099
    Thanks
    1,104
    Thanked 4,284 Times in 1,939 Posts
    well there are many little tricks that have been mentioned on this forum but to get the job done it may just take good ole' fashioned hard work.........Use knives/cutting tools etc to remove as much as tape as possible........If yard still will not take as #2 you may try another yard
    BUYING ALL COMPUTER SCRAP WORKING OR NOT
    CHECK OUT MY BUYERS THREAD http://www.scrapmetalforum.com/scrap...nic-scrap.html

  18. #14
    msmoorad's Avatar
    SMF Badges of Honor


    Member since
    Apr 2013
    Location
    Durban, South Africa
    Posts
    611
    Thanks
    614
    Thanked 680 Times in 323 Posts
    for copper like that, i just take a hammer and bash the life out of it- it loosens & breaks up a lot of the glue and paper- thereafter its much easier to remove it

  19. #15
    eesakiwi's Avatar
    SMF Badges of Honor



    Member since
    Dec 2010
    Location
    NZ
    Posts
    2,302
    Thanks
    2,245
    Thanked 2,252 Times in 1,091 Posts
    I used to sell my Microwave transformer Copper coils as #2.
    I had cleaned all of the paper & glue off them.
    My 'rule of thumb' for cleaning was, if I started to feel a bit stupid picking off such tiny amount of tape & such, it was then clean enough. Really all that was left on it was a tiny bit of tape, some paint & on some, some glue.

    Then the guy at the scrap yard picked one up too look at it, started to pick the remaining tape off as proof it should be classed as 'Domestic'.
    Within a few seconds it was obvious he was feeling a bit silly for doing that in front of me. And then he chucked it back in & classed it as ' #2 Copper '.

    But.
    Last time I sold some, it was a different guy. He immediately said "That's classed as 'Domestic Copper' "
    Automatic fail.
    I think their buyers had just upped the standards that they bought by. Anything visible on it except for light varnish & it's 'Domestic Copper' now.

    I'd still get #2 Copper price for fridge compressor windings though.

  20. The Following User Says Thank You to eesakiwi for This Post:



  21. Similar threads on the Scrap Metal Forum

    1. Cleaning copper
      By Raleigh Kleeb in forum Scrap Metal Tips and Advice
      Replies: 25
      Last Post: 07-02-2012, 07:16 AM
    2. Question about motor winding and transformer copper
      By buckatabon in forum Scrap Metal Tips and Advice
      Replies: 27
      Last Post: 04-05-2012, 12:17 AM
    3. Copper Transformer
      By Big Tex in forum Scrap Metal Prices
      Replies: 7
      Last Post: 03-07-2012, 10:43 PM
    4. Cleaning copper
      By Raleigh Kleeb in forum Scrap Metal Spots
      Replies: 17
      Last Post: 09-30-2011, 05:49 AM

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

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