"PrecisionMachinisT" wrote in message
...

"Grant Erwin" wrote in message
...
If you buy a POS Husky or Sears (or Campbell-Hausfeld, or Coleman, or
Tinkertoy for that matter) you will feel like your own nickname. And not
even any K-Y. These little consumer-grade air compressors are ALL loud,
run hot, vibrate, don't live up to their specs, and are short-lived. In
the last 3 months I've seen 2 dead Craftsman "5 hp" air compressors at
yard sales people were trying to give away. Both still shiny.

Forget ebay. Look in your local classifieds. I see old industrial
compressors
*all* *the* *time* for $500 or less, real workhorses. I picked one up a
few
years ago, an old Quincy 2-stage unit I paid $100 for, and I put a few
bucks
into it and it's run perfectly ever since. It replaced a 1.5hp Sanborn
contractor's 2-wheel type, and the Quincy is MUCH quieter than the little
Sanborn was. I run it off of 240 single phase, by the way (that was what
the bucks were for, I swapped it from 440 3 phase to 240 single phase).

My advice is guaranteed. To be worth exactly what you paid for it.
Referring
once again to your "peevee" nickname, opinions are like a**holes.
Everybody
has one. You just read mine.


Grant,

I been using a campbell cast iron compressor for about 5 years in a
commercial shop, likely my service duty is at least twice double the
design
rating, if not 3 X.........this meaning that it ran pretty much constantly
all the time, 40 hours/week--feeding air to 3 cnc machines same basic make
/
model as the OP proposes feeding to a single machine......

I finally replaced the head unit just a few months ago, 99 bucks offa
ebay.

So now you go ahead and do the math........

Only caveat is any of them will eventually foul the air valves with oil
and
trash from the crank case--once the air seal is clogged on any high speed
spindle, the coolant will wash in there and and it will rapidly destroy
your
spindle bearing$.......

So when his compressor starts to 'consume oil', he simply needs to get a
new
head unit or at least replace the rings....

--

SVL

Our local IR dealer sets up the IR T30 5 hp with a 3 hp motor on a different
pulley, slowing down the pump speed which should reduce oil carry-over. They
use this setup for compressors supplying pneumatic control systems,
accompanied by appropriate filters and a refrigerated dryer. It's a more
rugged setup than the Speedaire climate control air compressors.