Hmm, I thought I had replied to this post....
Ok, the bigger units for heatpumps, I find they do not have much more Copper than a good fridge compressor, and sometimes they have Aluminium. All of the time they are far harder to get into....
So I just sell them as sealed units and because they weigh a lot more, the $$$"are still good and theres no extra time taken, no mess at all, and no grinder disc used up either...
I cut open the fridge and freezer compressors. Depending, the cylindrical shaped ones seem to be best cut just above the base plate, the odd shaped egg ones, above the seam.
I save the good cylindrical shaped casings to weld to the right (emptyed and opened) gas bottles to make into ornamental cannons.
There's a thin Copper tube inside most compressors. take that. Maybe some Aluminium, get that too.
Unbolt or cut thru the bolts holding the Iron core/Copper windings on.
Then put them aside for later to cut thru one end of the windings with the angle grinder, or a hacksaw, then pull the windings out the other side.
The Iron core & Compressor casing = HMS Iron.
The compressor part, has Aluminium in it = Contaminated Ali or whatever they call it.
Get someone who uses a angle grinder for a job to teach you how to use it, use the correct size disc with the correct guard.
Use safety glasses and earmuffs.
Have the handle screwed into the left side of the grinder.....
The guard at a 8-2 o'clock position looking direct at the disc face.
Hold the grinder so if it grabs it will pull itself away from you.. And so the sparks stay within the guard, basically rest the 2 o'clock part of the guard on the job to steady the grinder.
NZ$1800..¿?. I know where I can make some nice $$$ from ScrapMetal....
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