SDS hammer drill

**greytruck** · 04-06-2025, 09:46 AM

Those big green ones i was saying are the septic pumps. i believe they are called "the waste eater" which is printed on the box. Those are always very gross, slimy, stink, and usually have toilet paper stuck to them. yuck.

The other day i was thinking about well pumps, those are encased in stainless and are always copper wound from what ive come across. The stainless may be a telling sign of an copper motor.

Oh well, off to mess with a 10hp motor i got. wonder if mike has ever split any larger motors with his Hammer drill.... i do get these time to time and sell them as is cause i cant pull the copper by hand and i dont have hydraulics like i see others use on youtube to split and pull the copper out of larger motors.

**hills** · 04-06-2025, 02:48 PM

I see quite a few submersibles. The pump part attaches to the motor with four stainless steel bolts. They usually come apart easily enough. The old pump sections had a fair amount of brass in them but i don't see them very often. The new pump sections have gone to stainless steel now. It's quality stainless.

The motors would be hard to do. I've only attempted one. The windings were encased in a white waxy / plasticy substance to waterproof the whole works. My guess would be that it's loaded with PFAS to enhance the waterproofing. Franklin Electric always used to be the standard motor brand you would see. That's the kind i dismantled. They seem to have gone to ITT nowadays. Those ones don't hold up as well as the old Franklins.

Anyhow ... i think i would recommend the upper pump sections of the submersibles as being the better chance for some scrap value.

Later edited to add:

I found a youtube on scrapping the submersible pump motors.

**mike1** · 04-09-2025, 11:11 AM

Originally Posted by greytruck

Those big green ones i was saying are the septic pumps. i believe they are called "the waste eater" which is printed on the box. Those are always very gross, slimy, stink, and usually have toilet paper stuck to them. yuck.

The other day i was thinking about well pumps, those are encased in stainless and are always copper wound from what ive come across. The stainless may be a telling sign of an copper motor.

Oh well, off to mess with a 10hp motor i got. wonder if mike has ever split any larger motors with his Hammer drill.... i do get these time to time and sell them as is cause i cant pull the copper by hand and i dont have hydraulics like i see others use on youtube to split and pull the copper out of larger motors.

Don't remember what it was for sure a 5hp or a 10 hp either way it was before I got the hammer drill they say that the copper content is lower on the big ones not sure if it's true I don't usually get big ones like that. I did a motor for a ac fan the smaller ones work good then the bigger ones are harder to do but doable my chisel bit is not quite wide enough so I have to move it back and forth but it cuts through or shears it off I think takes time but beats doing it by hand. Or a sawzall since that makes a mess. I have done a sump pump or two kinda nasty tho.

**mike1** · 04-09-2025, 04:07 PM

If I was able to aquire a 10 hp motor then I would do a video and see how it does I just don't get them I have only had one ever.

**hills** · 04-09-2025, 05:31 PM

With the larger motors & generators ... it seems to be common practice to burn them out with a torch or wood fire because they're so heavily varnished. Torch or furnace with a vent hood here in the states. They go old skool with a wood fire in India or Pakistan.

**greytruck** · 04-11-2025, 08:13 AM

Originally Posted by hills

With the larger motors & generators ... it seems to be common practice to burn them out with a torch or wood fire because they're so heavily varnished. Torch or furnace with a vent hood here in the states. They go old skool with a wood fire in India or Pakistan.

Seen a video of a guy using charcoal to burn off the varnish. he put the coals in the middle of the stator. But this stator was from a 8,900lb generator

**alloy2** · 04-11-2025, 10:26 AM

Originally Posted by greytruck

Seen a video of a guy using charcoal to burn off the varnish. he put the coals in the middle of the stator. But this stator was from a 8,900lb generator

Cut one end of the copper coils off first, after incinerating the coils are easy to remove.

I used a wood chisel bevelled edge down to wards the lamination to cut the copper ends off one end.

**greytruck** · 04-11-2025, 11:21 AM

Originally Posted by alloy2

Cut one end of the copper coils off first, after incinerating the coils are easy to remove.

I used a wood chisel bevelled edge down to wards the lamination to cut the copper ends off one end.

This guy dont even cut the ends off, he splits the stators with a press and uses hydraulics to pull the copper out. if he cant pull the windings, he does the "when in doubt, cook it out" method.