Heavy Dust Conditions
Engine Air Cleaners, Accessories & Service Parts
Q
111
STG Donaclone™ Air Cleaner
STG Donaclone: Field Proven and Reliable
Heavy-Duty Workhorse for Construction & Off-Highway Applications
That Donaldson's STG Donaclone™
is arguably the most commonly
used air cleaner, on the widest
variety of heavy-duty equipment
in the world, is a testament to its
reliability and durability. With its
two-stage air cleaning, heavy-
duty construction, and variety of
configurations, the STG works well
in many heavy-duty applications
like scrapers, crawlers, dumpers
and haul trucks.
Powerful Two-Stage
Filtration
The first stage of this powerful air
cleaner consists of a cluster of our
exclusive, patented Donaclone™
tubes. They spin the incoming air
to create a centrifugal force that
separates up to 95% of the dust and
dirt in the airstream. Donaclone
tubes have no moving parts – so
there is nothing to break down or
maintain. They function properly
whenever the engine is running.
This pre-cleaned dust is collected
in a dust cup on the bottom of the
air cleaner housing.
The second stage of filtration is
the primary filter, a cylindrical-
shaped unit of specially-developed
pleated filter media, designed to
trap and stop dust particles, both
large and small. The result is air
to your engine that is up to 99.9%
contaminant free!
If you're replacing a worn out
air cleaner, be sure to check
ductwork, clamps, and other
intake system parts that may also
need replacing.
STG air cleaners feature a
corrosion-resistant, chemical-
resistant polymer coating. This
black coating isn't paint, rather
it's a pigmented polyester that
provides a long-lived, hard
protective finish.
A safety filter, which fits inside
the primary filter, is standard on
all models for protection during
primary filter changeout.
Physical orientation does not affect
the proper functioning of either
cleaning stage!
The STG operates well mounted
horizontally or vertically. (Note
that if mounting horizontally, the
Vacuator™ Valve option on the dust
cup is necessary.)
Mounting: Sturdy mounting
brackets are attached to the
top section of the STG; you will
also need to order one separate
mounting band for the lower body.
This STG Donaclone, mounted on a large mining machine, is protecting the engine from harmful dirt
in this severely dusty environment.
