Metal Recycling Entrepreneur
I took some 41/2 in x .045 sait aluminum cut of wheels to cut the top off the windings in the stator and what a let down they were. These windings were only about 5'' and I could'nt even do 2 before the wheel was to small to cut all the way through the winding.I think I'll have to invest in a 9''and try a diffrent brand wheel.My 4 1/2 works good on motor housing though.Can't the yards tell if you have used vingear (acetic acid) to try and clean up something that would go as #2?
I use a 10 inch cut off wheel in my tablesaw and can cut the ends off of 50-75 winding cores before it's too small to cut anything else. I don't think the yards care what you clean it with as long as it looks good.
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Fist of all Bear are you using aluminum cutoff wheels? Try using steel cutoff wheels they'll last longer. Second my yard buys all used copper tubing as #2 but your yard might be diffrant.
Metal Recycling Entrepreneur
not bear but pretty sure your talking to me.The aluminum cut off wheels are suppposed to be for non-ferrous and work better but apparently not.I'll get some decent ones for steel and give them a shot.I got a couple cheep ones from the hardware store and used them on steel and they were so-so.I live in a small town so there's not variety
Metal Recycling Entrepreneur
I've been using a metal blade in a 10" miter saw for years, it just wore out recently after I started doing some serious motor and transformer cutting. That round part in the middle of motors, is it a stator or rotor? Even after it's removed from the motor it still laden with copper inside it's circumference, what do you sell those as?
The last time I took some in, mixed with a small batch of electric motors, the guy started to pull them out, but I asked about it, and showed him where I'd filed the end to reveal the amount of copper still there. He wasn't sure either, but he let it stay in with the electric motors that time
Last edited by Bear; 06-03-2012 at 11:45 PM.
Metal Recycling Entrepreneur
yea that would be the rotor bear,it has a shaft through the middle of it with a bearing on each end and the surface were the brushes ride (accumulator) seem to always copper.I havent seen that many but all the rotors seem to be made a little diffrent.Seen some were only the accumulator is copper.
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From what I understand the center from motors with the copper windings (often found in hand tools) are actually properly called armatures. My local yard take them as electric motor price. The center of most stand alone motors (the ones without copper) are called rotors and my local yard pays me prepared steel price.
If it wasn't for the $ in $crap, it would just be.....
Metal Recycling Entrepreneur
thnaks, shows what i know
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For Al/cu reefer, I will use the angle grinder on the outside of the loops against the steel. They cut easily and once all are off, tap the steel with a hammer and it will fall off with a few light hits.
All copper pipes go for #2 at my yard, with or without solder.
The Aluminum reefer doesn't have any steel attached to it usually, so I just snip the connection of copper and alum with a small bolt cutter and take it in like that.
Compressors- I store them and always intended to cut them open, but they do take almost a whole cut off wheel each and the sawzall is too messy. An oxy/acetylene torch might work best. Just brought in about 500 lbs not too long ago.
Electric motors- Simple. Couple bolts with nuts. I drop them on the ground and the middle usually pops out. Then take the grinder down the side of the steel to take off the casing.
But you can just snip the wires and take them as motors like that.\
There is cast aluminum/zinc on the motor, too.
Last edited by rca987; 06-05-2012 at 06:59 PM. Reason: Bad Spelling early in the morning.
Garbage keyboards > spɹɐoqʎǝʞ ʎɐqǝ
Metal Recycling Entrepreneur
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I have never checked the rotor in an electric motor for copper, so they actually have copper in them? I'll have to check,i was cleaning some electric fan motors earlier. I always cut my compressors.
Metal Recycling Entrepreneur
If the rotor (armature) has copper on it, it will be easy to see and the and where the brushes ride(acumalator) will be copper. I'm by no means an expert about this stuff all I did was google electric motor diagram.
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