On 25 Apr 2007 07:43:18 -0700, Neillarson
wrote:

I have seen a lot of references to size of air compressors for
different jobs and tools but I can't find a good rule of thumb, Yes, I
know I can use each individual tools ratings but I don't have them all
yet.

Today, I use a PC Pin Nailer, a SENOC Brad Nailer and a Bostic Brad
Nailer/Stapler. I am using a Sears Craftsman 1 HP 7 Gal that is rated
at 2.4 SCFM @ 90 PSI (125 max).
I am looking at adding a Finish Nailer, pnuematic sander like the PC
PTS6 and a pnuematic drill.

Any recommendations on what size compressort I should be looking to
upgrade to?

You are going from the least heavy air user (the nailers) to a SERIOUS
air user (the sander). I have a Craftsman 6 HP (yeah, right)
compressor with a 30 gallon tank and it is essentially useless for a
sander - just can't keep up. Your little 7 gallon unit will require
you to constantly stop and wait for the compressor and the compressor
will run constantly while you are sanding. I just decided that the
electric sanders work about as well, use far less electricity and the
power cords are far easier to drag around than air hoses. I don't
really know what an air drill requires in air volume (although a die
grinder, heavily used, takes some air). Don't even ask about paint
sprayers ;-)

Dave Hall