Hydraulic motor

[hills]

The DC motors are hard to get the copper out of. Most of the copper seems to be wound around the rotor and is varnished in. I don't know of any good ways to strip a rotor except to throw them into a fire and burn all that varnish off.



It might save you a lot of time to just sell it as an electric motor because that kind is so hard to strip.

[CopperMiner]

The DC motors are hard to get the copper out of. Most of the copper seems to be wound around the rotor and is varnished in. I don't know of any good ways to strip a rotor except to throw them into a fire and burn all that varnish off.

It might save you a lot of time to just sell it as an electric motor because that kind is so hard to strip.

I dislike them too. Getting them instead of an AC motor is like finding aluminum wiring instead of copper to me. I generally dismantle them to make sure they're not AC, check for cast aluminum (casing ends) and I put the rotors aside. I know that I probably losing time doing that and the rotor price is pretty bad, but copper breakage is not really a thing for local yards here and I don't get them too often. Also, the ones I get are generally quite small. The biggest rotor I got lately is maybe 2 inch diameter.

[hills]

I dislike them too. Getting them instead of an AC motor is like finding aluminum wiring instead of copper to me. I generally dismantle them to make sure they're not AC, check for cast aluminum (casing ends) and I put the rotors aside. I know that I probably losing time doing that and the rotor price is pretty bad, but copper breakage is not really a thing for local yards here and I don't get them too often. Also, the ones I get are generally quite small. The biggest rotor I got lately is maybe 2 inch diameter.

Ohh man .... i hear ya. It will usually say if it's AC or DC somewhere on the motor. You can tell by how the wires hook up. It's often a heavier black wire and a heavier red wire for for a DC motor. AC motors generally have at least three wires. A black, a white, and a green ground.

Also hate wasting time on aluminum wound. It's like finding a turd in the punch bowl. Sometimes you can go by application. Most jet pumps for well water are ali. A lot of burner motors are ali. Maybe the ali holds up better in damp environments ?