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| SPONGE-JET 35E 50E USER MANUAL
4.1 TOP SCREEN - LARGE PARTICLE
CLASSIFICATION
Top Screen
is a standard #3 mesh screen used to separate unwanted foreign
matter larger than most Sponge Media particles. Items such as nuts, bolts
or rocks are separated and discharged as oversized particles through
Large
Particle Downspout
.
WARNING:
Oversize particles, if re-introduced back into Working Mix, can cause harm or
damage by (1) becoming a projectile capable of injuring people, (2) harming
work surface, (3) piercing pressurized blast hose, (4) clogging Feed Unit and/
or (5) damaging/jamming the drive mechanism.
4.2 REUSABLE MEDIA
Sponge Media that do not pass through
Bottom Screen
exit unit via
Reusable
Media Downspout
. Sponge Media abrasive that exit
Reusable Media Down-
spout
can be reused in Sponge-Jet Feed Unit.
Working Mix:
a blend of blasted Sponge Media passed through Recycler
(as
reusable Sponge Media)
plus a quantity of new Sponge Media added every 2-3
passes through Recycler. Generally this is 1-2 bags per hour, per nozzle.
4.3 BOTTOM SCREEN - FINE PARTICLE
CLASSIFICATION
Bottom Screen
is a number #16 mesh screen used to separate foreign mat-
ter smaller than most Sponge Media particles. Fine particles are separated
from Sponge Media and discharged through
Fine Particle Downspout
and are
normally considered waste. Fine particles usually include paint chips, broken
down
(spent)
Sponge Media. These fine particles,
if added to the Working Mix, will increase ambient dust levels at work site.
Important:
Dust level tolerance can change from project to project and is
subject to guidance from project management. When hazardous materials
such as lead paint, chromates, radionuclides, cadmium, or PCB’s are present,
there are additional demands for managing dust and waste according to best
practices and applicable local, state and federal regulations.