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Re: Air compressors

To: "Thomas Wannenburg" <>
Subject: Re: Air compressors
From: LeChevet <>
Date: Sun, 07 Apr 1996 13:16:05 -0400
At 09:24 4/7/96 -0400, you wrote:
>   I am seeking advice regarding the purchase of an air compressor.  I am 
>budgeting around $400 for compressor and a few basic air tools.  I have looked 
>at severall 5HP models, including Campbell Hausefield (Walmart), Devilbiss 
>(Lowes), Black something or other (SAMS), and the Sears models in their
>The compressor I buy is strictly for my car hobby.  It will not see heavy 
>sustained use at all.  Some spray painting, impact wrench, cleaning, sanding, 
>etc - all at a very leisurely pace (unfortunately as my real job permits).  I 
>have noted that the models with alumium compressors are less expensive than
>cast iron equivalents.  Are these likely to satisfy my needs or should I fork 
>out for a cast iron compressor.  I like the Lowes Devilbiss model - anyone
>any experience with this model or the Walmart model?  Any advice regarding 
>compressors or air tools would be appreciated as I am very ignorant in this 
>Tom Wannenburg
>74 MG Midget
I would advise you to stay far away from the Sears units.  I bought one of
the 3.5 HP units with a 25 gal tank because it advertised 8.5 scfm at 40
psi.  I run the tank down to 40 psi using tools that are rated @ 3 scfm at
40 psi!  The HP ratings that Sears uses are false advertising in my opinion.
I notice that their 5 HP model has a maximum current draw of 14.7 amp @ 120v
- the same as my 3.5 HP unit.  I short, the MAXIMUM input power on their 5
HP model is a bit over 2 HP.  How they rate the maximum output at 5 HP is a
true feat of wonder and a violation of the basic laws of nature!  I also
notice that they do this same trick on most of their power tools.

Other manufacturers must use a different HP rating system because a
DeVilbiss unit I saw using the same motor was rated at 2 HP.  In short,
don't compare HP ratings unless they are based on the same system and don't
believe Sears' ratings - either HP or SCFM.  My 3.5 HP Sears unit (now rated
at 5 HP?) is not big enough to run a full size paint gun, air drill, or air
grinder.  It is OK for impact wrenches and blowing up tires.  My next unit
is gonna be a 60 gallon upright with a two stage, belt driven compressor
with an HONEST SCFM rating.>
                                        Jon LeChevet

80 MGB

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