Ransburg RMA-560 Single_Dual Purge Direct A13364 - Manual (Page 41)

SHAPING AIR KIT #4
A12874-12 Dual Flex Shaping Air Kits 55mm
Bell Cups
As the name implies, both shaping air outlets sup-
ply air that is counter to the rotation of the bell cup.
Both sets of shaping air holes are independently
controlled. The inner set of holes are supplied by
connecting the “blue” tube labeled “SAI” on the
tubing bundle to a regulated air source. The outer
set of shaping air holes are supplied by connecting
the “gray” tube labeled “SAO” on the tubing bundle
to a regulated source. The air supplies work in
combination with each other to provide desired
results. This combination of shaping air can be
used with any 55mm bell cup.
NOTE
† A minimum of 70 slpm (2.6 SCFM)
should always be kept flowing in the in-
ner shaping air passage to keep the face
of the applicator clean during manual
cleaning breaks.
BRAKE AIR
Brake air is used to slow the turbine speed in a
minimum length of time. It is advantageous for
short cycle times during color change, or may be
used to reduce speed or stop the turbine. Never
operate brake air with the turbine air on.
Approximate brake times to reduce the turbine
speed are shown in “Deceleration Time Chart” in
the “Introduction” section. These times are based
on 60 psi (413.7 kPa) and 100 psi (689 kPa) air
pressure at the back of applicator.
ELECTROSTATIC VOLTAGE
The RMA-560 Rotary Atomizer receives a low
voltage control input from the MicroPak to control
the operating electrostatic voltage. (refer to the
current “MicroPak” manual for detailed for oper-
ating instructions.)
NOTE
† If paint defects occur, such as fatty
edges or picture framing, reducing the
voltage should be a last resort. To cor-
rect the problem, lead and lag trigger
adjustments should be optimized first.
† The electrostatic voltage applied
to the RMA-560 will affect pattern size,
transfer efficiency, wrap and penetration
into cavity areas. A setting of 30-100 kV
is appropriate for most applications.
RMA-560 Single/Dual Purge Direct Charge - Operation
Ransburg
LN-9278-13 38