Air Supply Setup - Grizzly G0708 Owner's Manual

Air Supply Setup

The ability of this blast cabinet to accomplish its
task is directly related to how well the air supply
system is designed. For this blast cabinet to oper-
ate at its maximum potential with the largest blast
tip, the CFM feeding the regulator should be 16
CFM at 120 PSI.
Refer to your compressor Owner's Manual and
make sure that the compressor can handle the
load of a blasting cabinet. Often a 5 HP compres-
sors are used, but the duration of the work shift
and tip size installed must be reduced so the
compressor duty cycle is not exceeded. Ignoring
this requirement could lead to compressor over-
heating and failure. The rule of thumb is that, the
smaller the compressor, the less CFM available,
and greater cool-down time required.
If this blast cabinet is to be used at full capacity
in eight-hour work shifts at the maximum air pres-
sure of 120 PSI using the largest tip, an industrial-
grade compressor capable of delivering up to 16
CFM may be required.
For smaller compressors, make sure to increase
the compressor maintenance interval and verify
that your compressor has the best cooling airflow
possible.
When filling or servicing the blast cabinet, there
is a risk of subjecting the compressor to airborne
media or dust. Be sure to locate the blast cabinet
away from the compressor operating environment.
If even small amounts of fine media dust enter the
compressor through the intake or during general
service, rings, pistons, valves, and bearings can
be quickly destroyed.
Model G0708 (Mfd. Since 1/15)
Remove any in-line oilers, make the supply line
long enough to allow the compressed air to fully
cool before it reaches the gun, and install an
in-line water separator or air dryer. Tilt air sup-
ply lines slightly back toward the compressor so
residual condensation in the lines will run back to
the tank instead of the media blasting unit. For a
general summary of the typical air system of this
blast cabinet and supply system, refer to the Air
System Diagram on Page 39.
If using an existing air system, eliminate air supply
restrictions and pressure drops that may occur at
small quick-disconnect fittings, elbows, small sup-
ply piping, undersized water separators, kinked
lines, or rust-filled piping.
Typically, when installing a new supply line for the
blast cabinet with a 125 foot run or less, the air
supply line up to the regulator inlet should have
an inside diameter of
3
supply line with a 1" inside diameter is recom-
mended.
If an air compressor is not available or the blast
cabinet is to be used at a remote location, NEVER
connect this blast cabinet to pressurized bottled
gasses such as oxygen bottles used in welding
operations. Line ruptures or explosions can occur,
causing equipment damage, serious injury, or
death.
Make sure to install an air supply quick-discon-
nect fitting or a shut-off valve that can be locked
out to prevent the air pressure from accidentally
being turned on. These items allow for the blast
cabinet to be serviced safely or allow it to sit idle
when not in use.
⁄ ". For runs up to 300', a
4
-15-