Ransburg MMA-303 Direct_Ind Charge Atomizer A12870 - Manual (Page 57)

MMA-303 Direct/Indirect Charge - Operation
LN-9269-11.3 54
omized particles into cavity areas. The
amount of inner shaping air should be opti-
mized for the specific applications. Excessive
air pressure will cause atomized particles to
blow by the target, reducing electrostatic wrap
and lowering transfer efficiency. Excessive air
may also cause some paint particles to
bounce off the target and deposit on the atom-
izer.
Connection is made using the “blue” 8mm
tube labeled “SAI” on the tubing bundle. The
other 8mm tube is labeled “SAO” and is “gray”
in color and must be plugged. However, if ad-
ditional air is required, this tube can be con-
nected to a secondary controlled air source.
Precautions must be taken that one does not
have a significantly higher pressure than the
other to avoid back flow. This shaping air
combination can be used with either the alumi-
num 55mm bell cup or the 55mm Titanium bell
cup. “Air Flow” information can be found in
the “Introduction” section of this manual.
A minimum of 70 slpm (2.6 SCFM) should al-
ways be kept flowing in the shaping air pas-
sage to keep the face of the applicator clean
during manual cleaning breaks.
N O T E
A12874-01 (METAL, DIRECT CHARGE)
A12074-02 (METAL, DIRECT CHARGE WITH RING)
SHAPING AIR KIT #2
A12874-05/06 Shaping Air Kits (Mono Flex
Air - Direct Charge) A12874-07 Shaping Air
Kit (Mono Flex Air - Indirect Charge) for
Use with All 65mm Bell Cup Only)
The shaping air is supplied so that it is counter
to the rotation of the bell cup. This combina-
tion will provide a pattern size from 10-inch to
24-inch (250mm - 610mm) depending on air
flow, fluid flow, and cup rotation speed. Con-
nection is made using the “blue” 8mm tube
labeled “SAI” on the tubing bundle. The other
8mm tube labeled “SAO” is “gray” in color and
must be plugged. However, if additional air is
required, this tube can be connected to a sec-
ondary controlled air source. Precautions
must be taken that one does not have a signifi-
cantly higher pressure than the other to avoid
any back flow. This shaping air combination
can be used with any 65mm bell cup. (See
“Pressure and Flow Data Charts” in the
“Introduction” section.)
A minimum of 70 slpm (2.6SCFM) should al-
ways be kept flowing in the inner shaping air
passage to keep the face of the applicator
clean during manual cleaning breaks.
N O T E
A12874-05 (METAL, DIRECT CHARGE)
A12874-06 (METAL, DIRECT CHARGE WITH RING)
A12874-07 (PLASTIC, INDIRECT CHARGE)