My compressor is the 6hp oilless "Professional" Craftsman, with about a 30
gallon tank.
You think I don't have enough compressor?
There is nothing between the compressor except a 3/8"x50' hose and Milton
couplers.
Pressure at the blaster gauge reads 120#. I have not watched it while in
use.
Rex Burkheimer
Marketing Director, WM Automotive Warehouse
Fort Worth TX rex@wmautomotive.com
Great minds discuss ideas;
Average minds discuss events;
Small minds discuss people.
----- Original Message -----
From: Randall Young <ryoung@NAVCOMTECH.COM>
To: 'Rex Burkheimer' <rex@wmautomotive.com>
Sent: Monday, October 02, 2000 4:07 PM
Subject: RE: SAND BLASTER QUESTION
> Rex :
>
> Sounds to me like something is seriously limiting the air pressure
available at
> the nozzle. Are you perchance working through a pressure regulator ?
Many of
> them won't pass the air flow necessary to run a sand blaster.
>
> Note that there is a vast difference between CFM and SCFM (something like
6:1
> at 90 psi) and compressor manufacturers like to gloss over the difference.
> Unless your compressor is seriously huge (like requires a 220v 30a
service of
> it's own to run), I'll bet it's actually rated 11.5 SCFM which is less
than 2
> cfm @ 90psi.
>
> You didn't say how many cfm your sand blaster is rated.
>
> Randall
>
> On Monday, October 02, 2000 1:37 PM, Rex Burkheimer
[SMTP:rex@wmautomotive.com]
> wrote:
> >
> > Gee, I have all this equipment and I can't figure out how to use it .
> >
> > I bought one of the HF $80 (on sale - like everything is) pressurized
sand
> > blaster. Bought some high tech "star" blasting media "Like sand only
> > better". So I get the thing all filled, hooked up, and have a small
> > project, a battery tray, that needs to be made naked. I turn on the
valves,
> > in sequence, from the air pressure inlet downstream through the feed
valve
> > at the bottom. Media comes rushing out in fairly large volume, but
doesn't
> > seem to be taking off the paint very well. I changed to a smaller
nozzle,
> > but it still did not cut the paint off as well as I thought it should.
In
> > fact, I can hold it at a sport for 5 seconds or more and it gets the
paint
> > clean, but does not take it down to metal.
> > Doesn't seem to be a air supply problem, as I used the blaster for
quite
> > a while before the compressor came out (11.5 CFM @ 90psi I think), and
it
> > did not take it long to catch up.
> > Humidity was very low.
> > I have used blast cabinets with glass beads, I figured this would cut
> > dramatically faster.
> > What am I doing wrong?
> >
> > Rex Burkheimer
> > Marketing Director, WM Automotive Warehouse
> > Fort Worth TX rex@wmautomotive.com
> >
> > Great minds discuss ideas;
> > Average minds discuss events;
> > Small minds discuss people.
>
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