DCM-161 MINI TUMBLE BLAST CABINET
Page 2
Tumble Barrel
Door Interlock Switch
Blast Nozzle
Filter Bag
Air inlet port.
Must be kept open
Exhauster
Media Drain Plug
Blast Gun Air Hose
Door Interlock Bracket
Air Filter/Regulator
Compressed air inlet
Timer Control
Media Hose
Figure 1
1.6 Nozzle
Options
1.6.1
Ventilation requirements limit standard cabinets
to 5/16" nozzle and No. 4 (1/8" orifice) air jet. Unless
otherwise specified at the time of order, cabinets are
supplied with a ceramic nozzle. More durable tungsten
carbide and boron carbide nozzles are available and are
shown under Accessories and Replacement Parts in
Sections 7.1 and 7.3.
Use boron carbide nozzles when
blasting with aggressive media such as those listed in
Section 1.8.4.
1.7
Tumble Barrel Options
1.7.1
Standard barrels are perforated with 3/16" holes.
An optional barrel with 1/16" holes is available for use
with fine abrasive or applications that produce small
chips or other byproducts that could plug the blast
nozzle. See Section 7.1.
1.8 Media
1.8.1
DCM-161 utilizes most common reusable media
30 mesh to 180 mesh, that is specifically manufactured
for dry blasting. Media finer than those recommended
may carryover to the dust bag. Media coarser than those
recommended may not convey through the media hose.
Media life can be extended by mixing the media in the
hopper after each cycle.
1.8.2 Steel:
Steel grit 50 mesh and finer or shot up to
170 may be used.
1.8.3 Sand and Slag:
Sand should never be used
because of the hazards of using media containing free
silica. Slags are not recommended because they rapidly
break down.
1.8.4 Aluminum Oxide, Silicon Carbide, and
Garnet:
Aggressive media such as these may be used
but consideration should be given to accelerated wear
on all parts of the cabinet, barrel, nozzle and hoses,
which come in contact with the media. When these
media are used extensively, use boron nozzles.
1.8.5 Glass
Bead:
Most beads are treated to ensure
free-flow operation even under moderately high humidity
conditions. Glass beads subjected to excessive moisture
may be reused after thorough drying and breaking up of
any lumps.
