Quote:
Originally Posted by xoxoxoBruce
, copper, and aluminum because that's done offsite.
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Eddy picks out the non-ferrous metals.
Hit them with an alternating magnetic field and Eddy currents are generated in the metal which in turn generates an opposing magnetic field and they are repelled. They can be just rolling down a conveyor and when they reach the magnet they fly off into a bin at the side.
Not sure if you can then sort Aluminum from Copper with a refinement of this technique.