
INEX SUCTION BLAST CABINET with 300 CFM RECLAIMER Page 3
© 2016 CLEMCO INDUSTRIES CORP. www.clemcoindustries.com Manual No. 21803, Rev. F 07/16
guidelines only. The guidelines are based on standard
nozzle size and average conditions, such as blast
pressure, media/air mixture, visibility inside the cabinet,
humidity, and reclaimer cleaning rate. Several factors
affecting the reclaimer cleaning rate include: reclaimer
size, air pressure, media/air mixture, media friability, and
contamination of parts being blasted.
As a rule, larger nozzles deliver more media, requiring
higher performance from the reclaimer. When using
larger nozzles, the maximum mesh size of media will be
smaller than those normally recommended. Using media
finer than those recommended may decrease visibility,
and increase carryover to the dust collector. Media
coarser than those recommended may be too dense for
the reclaimer to recover from the cabinet hopper.
1.7.2 Steel: Steel grit or shot should not be used with
the INEX Cabinet. The cabinet is too small to prevent
peening of the cabinet weldment, and 300 cfm
reclaimers are too small to efficiently convey metallic
media.
1.7.3 Sand and Slag: Sand should NEVER be used
because of the respiratory hazards associated with
media containing free silica. Slags are not recommended
because they rapidly breakdown and are not recyclable,
making them unsuitable for cabinet applications.
1.7.4 Silicon Carbide, Aluminum Oxide, and
Garnet: These are the most aggressive of the commonly
used media. Aggressive media may be used
occasionally by installing an optional aluminum oxide kit.
The kit includes rubber curtains for the cabinet interior
and a boron carbide lined nozzle. The service life of any
equipment components exposed to the media will be
reduced. To avoid unscheduled down time, periodically
inspect the reclaimer wear plate, flex hoses, blast hose,
and nozzle for abrasive wear. Using aggressive media
on a regular bases will cause rapid wear on the
reclaimer.
1.7.5 Glass Bead: Recommended bead sizes are No.
6 through No. 12. Most beads are treated to ensure free-
flow operation even with moderately high-humidity. Glass
beads subjected to excessive moisture may be reused
after thorough drying and breaking up of any clumps.
1.7.6 Lightweight and Fine-mesh Media: When
using lightweight (such as agricultural) media or fine
mesh (180-mesh and finer) media, the reclaimer inlet
baffle may need to be removed to retain media and
avoid carryover. On reclaimer models with bolt-on
removable tops, baffle removal and replacement is
easily accomplished. Reclaimers with welded-on tops
require grinding to remove the baffle and once it is
removed it cannot be replaced.
1.7.7 Plastic Media: Plastic and similar lightweight
and/or non-aggressive media are generally not
recommended for suction-style cabinets because the
lower blast velocity of suction blasting combined with the
softer and lighter weight media, do not provide the
media impact for productive blasting. Best performance
from plastic media is achieved with pressure blasting,
requiring a pressure vessel with a 60-degree conical
bottom. Refer to Clemco’s AEROLYTE cabinet line.
1.7.8 Bicarbonate of Soda: Bicarbonate of soda is
not recommended for use in standard cabinets. Bicarb is
a one-use media usually used and will quickly saturate
the filter cartridge(s). Best performance from bicarb
media is achieved with pressure blasting, requiring a
pressure vessel. Refer to Clemco’s AEROLYTE cabinet
line for cabinets that are specifically designed for use
with bicarbonate of soda.
1.8 Compressed Air Requirements
1.8.1 The size of the compressor required to operate
the cabinet depends on the size of the air jet and
blasting pressure. Unless otherwise specified, cabinets
are supplied with a No. 5 (5/32" orifice) jet. Refer to the
table in Figure 2 to determine cfm requirements. Consult
with a compressor supplier for suggested compressor
size based on the air consumption. NOTE: A separate
air line is required for the reverse-pulse dust
collector. If preferred, remove the plug from the
auxiliary air-port (shown in Figure 3) and connect a
1/4″ID or larger air line to the dust collector pulse
reservoir/manifold.
Compressed-Air Consumption in CFM
BNP Gun Jet Nozzle CFM PSI
No. 4 1/8" 5/16" 21 80
No. 5 5/32" 5/16" 32 80
No. 6 3/16" 3/8" 47 80
*No. 7 7/32" 7/16" 62 80
*No. 8 1/4" 1/2" 86 80
* Using this combination could affect usable media size,
refer to Section 1.7.
Figure 2
1.8.2 The air filter at the air inlet connection reduces
condensed water from the compressed air. Its use is
especially important in areas of high humidity, or when
using fine-mesh media. Moisture causes media to clump
and inhibits free flow through the feed assembly. If the
filter does not remove enough moisture to keep media
dry and flowing, it may be necessary to install an air
dryer or aftercooler in the air supply line.