I did the same, pictures and weights, on several motors. I found that the heavy motor,74 lbs, had a lower percentage of copper than a group of small motors, total weight about 40 lbs. Also I find it much easier to remove the copper from the smaller motors. I will try to learn to post pictures. I purchase motors from another scrapper and then break them down. This is my main scraping activity so far.
Thank you for taking the time to post the pictures I know it was time consuming. Best to you, Mike.
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