BNP
®
55 SUCTION BLAST CABINET Page 12
© 2019 CLEMCO INDUSTRIES CORP. www.clemcoindustries.com Manual No. 23350, Rev G, 02/19
under the grate when frequently blasting small parts) to
prevent parts from falling into the hopper. If an object
should fall through the grate, stop blasting immediately
and retrieve it.
4.3.3 Close door; the door interlock system will
prevent blasting if either door is open.
4.4 Blasting Operation
ARNING
To avoid the inhalation of dust, which can
cause respiratory illness from short-term
inhalation or death from long-term inhalation:
Use the blow-off nozzle to blow media off
parts before opening doors.
After blasting, keep doors closed and
exhauster running until the cabinet is clear
of all airborne dust.
Always close cabinet, reclaimer, and dust-
collector doors before blasting. Keep all
doors closed during blasting.
Always wear blast gloves.
Stop blasting immediately if dust leaks are
detected.
4.4.1 Slowly open the air valve on the air-supply hose
to the cabinet. Check for air leaks on the initial startup
and periodically thereafter.
4.4.2 Turn ON the lights and exhauster. The ON/OFF
switch located on the light shield performs both
functions.
4.4.3 Load parts.
4.4.4 Close door; the door interlock system will
prevent blasting if either door is open.
4.4.5 Adjust the pilot-pressure regulator located on
the upper-left side of the cabinet to the required blast
pressure, per Section 5.1.
4.4.6 Insert hands into rubber gloves.
4.4.7 To blast, hold the gun firmly, point the gun
toward the object to be blasted, and apply pressure foot
pressure to the top of the foot pedal; blasting will begin
immediately.
WARNING
Shut down the cabinet immediately if dust
discharges from the dust collector or cabinet.
Make sure dust-collector filter(s) are correctly
seated and not worn or damaged. Prolonged
breathing of any dust can result in serious lung
disease or death. Short-term ingestion of toxic
dust such as lead, poses an immediate danger
to health. Toxicity and health risk vary with type
of media and dust generated by blasting.
Identify all material being removed by blasting
and obtain a safety data sheet (SDS) for the
blast media.
4.4.8 When blasting parts off the grate, use a solid
conductive backrest to support the part. Without this
assist, especially with longer blasting operations, the
operator will tire easily from resisting blast pressure, and
static electricity could buildup in the ungrounded part
and cause static shocks. Whenever possible, avoid
holding small parts that require blasting into the glove.
4.4.9 If an object should fall through the grate, stop
blasting immediately and retrieve it.
4.5 Blasting Technique
4.5.1 Blasting technique is similar to spray painting
technique. Smooth, continuous strokes are most
effective. The distance from the part affects size of blast
pattern. Under normal conditions, hold the nozzle
approximately 3" to 6" from the surface of the part.
NOTICE
To prevent rapid frosting of the view window
install a view window cover lens, per Section
7.3, and avoid pointing the blast nozzle toward
the view window
4.6 Stop Blasting
4.6.1 To stop blasting, remove foot pressure from the
top of the foot pedal.
4.6.2 Use the blow-off nozzle to blow media off
cleaned parts.
4.6.3 Keep doors closed and exhauster running until
the cabinet is clear of all airborne dust.
4.6.4 Unload parts.
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