Hello I was curious if there was anything inside of an armature or if they are worth anyhting extra. Thank you for your time.
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Hello I was curious if there was anything inside of an armature or if they are worth anyhting extra. Thank you for your time.
Lots of copper winding in both the armature and stator. Pain to get out, though.
Any tips on getting it out?
Not really. I was using needle-nose pliers and unwinding it. Took forever and just not worth it. Actually the armature can be spread apart and pulled into two pieces which makes it easy. I could only get it done once. No matter how much I beat on it, I couldn't get it to budge. You'd need something that would hold the "teeth" and act as a "reverse vise". Maybe somebody here knows what would work? I had a whole pile of alternators and starters. Unwound a few dozen, but finally just hauled them and sold them as cores.Quote:
Originally Posted by matt018
The copper in the stator is much easier. That's what I go after.
I dont know what a stator is but is that the piece of laminated steel with a crapload of easy copper in it? And ok I will sell them as such.
The stator is the stationary part that surrounds the armature. If you take an alternator apart (remove the 2 or 3 long bolts holding case together), you the can pull the armature out from the stator. You'll have to cut a few wires connecting back.
Ok I know what you mean.
This sounds like a challenge! I wish I hadn't turned in the armature from my dryer motor now. I would have tried getting into it now. I'll have to "examine" the next one. :)
Armature, The part of a motor that spins. Stator, is the stationary part surrounding the Armature.
Grandpa would be proud, thanks Grandpa, I have listened and learned all I could!
God rest his wonderful, loving, educating sole!
"Listen to what others try to teach, take what you need, leave the rest!"
Oh sorry to answer your question , the arm. is most times made of steel with cast Al ends. The Al makes it lighter saving friction thus less energy used to spin the shaft. That employs the ER ratings, but that is not of concern here!
The steel reacts to the mag. created by to current through the windings in the Stat. and therefore making the motor spin.
Motors with wound Arm. work the same way just different. LOL
Sorry to be long but I like to know how things work before I destroy them!
So how do you know which armatures are just steel, and which ones are wound copper? Will the copper be visible in the armature, or will there be a a shell around it?
Yes the copper will show. One part will be wound with copper wires the other will be steel.
The more motors you cut open, or take apart the more you will see what I speak of.
Take a hand mixer apart the armature is wound as a posed to a condenser motor, were the stator is wound.
As Mentioned by Kris Kringle, the fun is in the learning and taking things apart.
learning about the stuff you disassemble may help land a job when things get tough!
When there is a stator that is wound with a welded casing around it just use your cutoff wheel with caution and release the core. After the core is in hand it should be old hat from there. I have described how easy it is to remove the copper from there. "A walk in the park"
OH I get it! One or the other is copper. I see. Thanks! Thought that both had copper at same time. lol
Funny you mention both being with copper, the very old motors were wound that way! With energy being in mind these days modern motors have come a long long way! Using less electric to get more horse power! But that is another subject all together! I am not just a scrapper, I am a HVAC tec that scraps. It is a great way to unwind while making a profit!Quote:
Originally Posted by Saroro
I have a few questions regarding removing copper windings from armatures.
What would the be the best way to remove the copper from the armature?
Is worth trying to remove myself or is it better to sell the armature as a whole and avoid the headache?
Would a scrap metal facility even be interested in large volumes of miter saw armatures?
My experience says put the armatures in the motor bucket and leave it at that. Attempts to remove the copper windings proved to be far too time consuming. Mike.
I cut the Copper loops off the end thats easy to get too, using a angle grinder.
Then I pick out the loops.
Then I start bashing the Copper contacts & they break & fall out. They have bits of insulation/bakelite stuck to it, so its pick it off or give it the 'fire treatment'.
But mostly the wire is really stuck in there with Varnish, so I burn that off in a fire when I do all the other stuff I have saved up, that needed the fire treatment...
(Armature can be any part that has wires on it, but mostly the inner rotating part with Copper wire in it) Armature (electrical engineering) - Wikipedia, the free encyclopedia
Yep fire is the way to go