Air compressor recommendations for home shop

I just went thru this last year and this is what I learned. Most of the box store compressors are junk. If you want the compressor to last here are some tips.
I would get an older used compressor and rebuild it. Back then (20years) the quality was a lot better.
Get one with the 7.5HP motor, those run at a little bit higher rpm but are not that loud.
Get the one with the 80 gallon tank if possible and get a extra tank for storage if you have the room.
Starts kill components on single phase, it puts a lot of stress on the start winding and contacts.
Starting at a higher kick in pressure ads even more stress, mine is set at 70 kick in and 145 kick out.
Lower your kick out pressure I don't think any of the normal tools require 175psi this is just wasted pressure and reduces loads on your equipment.

So my system is a husky 7.5hp 80 gallon (home depot) compressor from the early 2000's these were speedaire commercial entry units just repainted red. I rebuilt the electric motor and the compressor, the tank was in great shape the PO had it set at 175KO and burned the contacts he took the compressor apart and left it like that. I got a 120 gallon air tank that was new old stock for scrap price. So now I have a 200 gallon compressor set up, along with the low KI and KO pressures it tends to run a long time when it starts but that is what you want. A long run time allows the compressor and oil to heat up to drive out any condensed water in the oil.

This set up cost me about 400-450 dollars that includes replacement parts and paint. With proper maintenance my son is the one that will have to worry about rebuilding this at a later time.

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Originally Posted by

X2. And it's not just people in apartments that need or want a small, cheap, quiet set-up at home.

The guys on this forum are actually pretty good at giving tailored advice if the parameters are clearly specified in the question. It's a different story on forums like Practical Machinist. No matter what you ask over there, you get the same three guys telling you that you should being buying a Haas vertical machining center instead of whatever you want to do. As if any normal person would put a full size 6 figure machining center in their home.....

Creating as little noise as possible should be a universal requirement. My farther lost most of his hearing thanks to working in a noisy factory for years.

For any scenerio where noise is a huge issue like in an apartment, I think that the only effective and practical method is an enclosure. It shouldn't cost much (or be hard to build) using an aluminum T-slot frame with plexiglass panels and pyramyd style sound proofing foam. Regardless of how chips are cleared, it's the spindle cutting that will bother the neighbors. When I used to live in Manhattan in an apartment, the neighbors below would complain if they could hear me walking on my floor....

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