In article . com,
"BobR" wrote:

I have been looking into the small, portable compressors and the best I
have been able to find was the Porter/Cable from Northern Tool which
specs at PSI: 7.7 CFM @ 40 PSI; 5.3 CFM @ 90 PSI. If you are looking
for something bigger, you will have to go with a larger tank and a bit
more hp. Even then, a 20CFM at 80 PSI is going to be hard to find for
110v power.



mhorowit wrote:
I'm looking for a small compressor, running on 110v, min 20 CFM at 80
PSI. Anyone got a recommendation? - Mike

Another recommendation:

Be sure to drain the accumulated water from the tank weekly!

A few years ago the EAA Vintage magazine had an article on exploding
compressors. The water corrodes the inside of the tank on cheap ones and
works on the welds on the dome. I had one that I operated at 125 PSI and
talked to the author of the article at Oshkosh. He shuddered when I told
him I was operating at 125 PSI and advised me against it.

Later that month I fired up the compressor and noticed that it was
taking an awful amount of time to reach shutoff pressure -- in fact it
never did! I then noticed the sound of air escaping, unplugged it and
left the hangar.

After the air had escaped, I examined the tank and saw about a 1-inch
crack in the weld at the bottom of the dome. It had corroded from the
inside out, but, fortunately, the crack did not propagate further.

I now prefer the upright compressors, as their failure mode would be at
the bottom, rather than blowing the end dome off.