recycling hub motors?

[neptronix]

I've been searching around on the 'net and haven't found an answer to this, so i thought i'd pick the community's brains.

I've got a few busted motors lying around, probably making for ~5 pounds of neodymium magnets between 'em all, and a good quantity of copper as well. These have gotta be worth something! does anyone pay cash for the magnets?

 

[Thud]

What'dya want for em?
I am always in he market for a re-wind core......

 

[emiyata]

I've been searching around on the 'net and haven't found an answer to this, so i thought i'd pick the community's brains.

I've got a few busted motors lying around, probably making for ~5 pounds of neodymium magnets between 'em all, and a good quantity of copper as well. These have gotta be worth something! does anyone pay cash for the magnets?

I would like the magnetic ring . I am making a pellet mill and need a ring to grab the metal that is in the leaves when I pour them into the mill. If you can give me a price that would be great. My goal is to heat the house of leaves next winter. The only cost would be the cost of the gas to run the mill.
If others want it that's ok but please don't toss it.

 

[friendly1uk]

China have most of the rare earth magnets, and other countries are doing there best to find ways not to use them. Electric motors appear in most vehicles of the future, so there price will go up, and it could be by quite a margin. Personally, I would hang on to them. Or fix the motors to increase there value right away

 

[Sunder]

What'dya want for em?
I am always in he market for a re-wind core......

Sorry for the thread hijack Neptronix, but quick question for Thud - do you know of any sites that teach you how to rewind a motor? I want to try it out on an old motor I have.

Thanks.

 

[Thud]

Sunder,
There is a bunch of good info here:
http://www.bavaria-direct.co.za/models/motor_info.htm

Also check out RCgroups. They have many threads about motors, the design theory is the same for any size motor
http://www.rcgroups.com/electric-motor-design-and-construction-361/

Back to your regularly scheduled thread content..

 

[neptronix]

OK, so i have an A2B motor whose case has been destroyed due to my oafish attempts to open the motor ... the problem with it is that one of the magnets came unglued and shifted, making the motor vibrate violently when throttle was applied. It can't be repaired, and you wouldn't want it anyway.. 150mm dropouts, 9mm axle flats, internal controller... the only upside is a low pole count. The stator + controller assy. itself is likely worth a few $ on eBay tho.

It's got abnormally large and chunky neo magnets on it on the outer shell though.
It's gotta have a pound or two of neodymium magnets in it alone. I think those are going for $50-$70 a pound brand new.

Since i can't find a neodymium scrapper.. make me an offer on the ring if you really want it, otherwise i'll just hang on to it since the value of neodymium can only continue to go up.

I also have a golden motor BLT-650. It's a big inrunner. The motor shaft was not balanced properly from the factory and the magnets scrape very so slightly on the stator, leading to magnet dust getting everywhere and the hall sensors becoming confused.

The inrunner shaft and magnet assy. would make for a great magic wand for picking stuff up... lol.

 

[Sunder]

Sunder,
There is a bunch of good info here:
http://www.bavaria-direct.co.za/models/motor_info.htm

Also check out RCgroups. They have many threads about motors, the design theory is the same for any size motor
http://www.rcgroups.com/electric-motor-design-and-construction-361/

Back to your regularly scheduled thread content..

Thanks mate. Had a good read. I have a bit of a "dream" that "when I have more time". (Never - I work 50-60 hour weeks and still try to have a social life), that I was going to rewind a Q100 to around 250rpm, and use N52 magnets. May happen, may not, but as you say, back to reality.