From digest.v7.n58 Wed Aug 6 09:18:09 1997
From: "Steve D'Gerolamo" <steved3_at_idt.net>
Date: Wed, 06 Aug 1997 08:55:03 -0400
Subject: Garage Air Compressors
>From: "Andy Andreasen" <andreasa_at_hic.net>
>Date: Tue, 5 Aug 1997 20:13:18 -0500
>Subject: Garage Air Compressors
>I finally decided today that I would purchase an air compressor for the
>garage to make my life a little easier. What I found was a wide assortment
>of air compressors, ( gas or electric, oil or oil free, single stage or 2
>stage compressors) with a wide variety of prices. I remember a while back
>that it was mentioned that the most important aspect was CFM that the
>compressor could put out. Does anyone know what kind of CFM it takes to
>operate tools for use in a home garage setup? Any suggestions on brands or
>the best place to purchase. Any help is greatly appreciated.
Buy the most CFM _at_ 100psi that you can afford. Forget horsepower...my
little 5hp Kaiser puts out 25cfm _at_ 100psi, enough for most tire shops. If
you only plan to use 1 or 2 air tools at a time, a 60 gallon tank will
suffice...most small garages use an 80 gallon tank and the last dealership
job I worked on (DiFeo BMW in Tenafly, NJ) has a 120 gallon tank in support
of 15 air drops and 2 tire machines.
Most air tools require 90-100psi...tire mounting machines need 140-150psi.
CFM will depend on the type of tool. Body shop tools
(sanders/buffers/grinders) tend to require more air (8cfm and up) than air
ratchets, impact wrenches (except for 3/4 drive and up) and air hammers.
Sandblasters need 15cfm and up. If you're using small automotive tools on a
light duty basis, you can get by with a $400-500 60 gallon Sears unit
putting out 9-10cfm _at_ 100psi.
For more details, I've got a page on my web site on "Buying and Air
Steve D'Gerolamo c/o The Ultimate Garage, Emerson, NJ Tel 201-262-0412
Email.... steved3_at_idt.net Web Site.... http://www.ultimategarage.com
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