- stripping wire
Metal Recycling Entrepreneur
does anyone else trip regular power cords on here. Usually I set them aside for a movie or something and use one of those Klein Tools Katapult manual wire strippers. just curious because it seems I am the only one in history to do so. Also if someone can tell me the copper yield percentages for such wire that would be awesome.
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Math and scrap are for you to understand if you want to succeed. Percent of copper can be determined with a scale and some math. Take it to the next level and factor in your time as well. Weigh your insulated wire. Strip and document your time. Weigh your copper. Divide your copper by your insulated weight. That is your recovery %. Please don't discount your time. It isn't always worth the effort to produce a higher quality product.
Metal Recycling Entrepreneur
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Not all power cords are created equal..
New Guy
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Sadly this is true. Some power cords (if stripped) are hair wire copper, #2 Cu at best. Solid core wires are almost always worth stripping. A lot of the time those I will pay Bare Brite or #1 Cu at least. Right now I pay $1.75 lb for Brite.Originally Posted by nutpie
Metal Recycling Entrepreneur
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Most small appliance cords are 18 gauge stranded. A good approximation for this wire is 7.5 grams per meter (this will vary, depending on the stranding). For example, a three meter, two conductor cord from a pole lamp will yield about 45 grams (approx. a tenth of a pound). If you know the yield per length and weigh the insulated wire before stripping you should get a good idea on yield per raw weight. The following link has a chart with wire yield per length. Hope it helps.
Copper Wire Chart
Metal Recycling Entrepreneur
that last one helped a lot. I don't have a scale that is why I was asking. and as for the time thing I don't mind unless the wire is being a pain. its a hobby for me not a job so the time I put into stripping it would have been put into something useless that doesn't make me money at all. I don't get in as much as a lot of you so I throw it aside to do when I run out of stuff to take apart.
Metal Recycling Entrepreneur
could somebody tell me why hair wire copper goes for #2 they are both the same element with the same amount of oxidation it kinda just doesn't make sense to me in my mind
Pound for pound the solid wire has far less surface area to be exposed to the air and other contaminants that can oxidize the wire. With the stranded wire there is going to be far more oxidation before and during the processing of the wire. 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
Metal Recycling Entrepreneur
thank you
Metal Recycling Entrepreneur
I don't bother with any standard power cords. I leave them as is and get insulated #2 pricing for them. I thought stripping appliance cords(220V dryers and ovens) would yield a good amount of copper. However, I weighed one, stripped it and calculated that it is better to leave it as is then to strip it down. The insulation is very thick on the appliance cords and it has to be stripped by hand. I could not get is stripped using my drill powered wire stripper. So, I leave them or I sell them on CL for $10. The same goes for romex wire. I don't strip anything smaller than 12awg. Why strip off the insulation when you can get paid for it.
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