Ransburg RMA Direct A12867 - Manual (Page 12)

RMA-303 Direct Charge - Introduction
9 LN-9266-11.3
GENERAL DESCRIPTION
Bell Cup Assembly
All bell cups are made of high strength Titani-
um. They are available in 65mm serrated,
non-serrated for base coat applications. A
30mm and 55mm aluminum bell cup is availa-
ble.
Air Bearing Turbine Assembly
The air bearing turbine assembly with bell cup
is mounted to the air manifold assembly with
a turbine retaining ring.
Air Manifold Assembly
The atomizer extension is angled at 60˚ for
robot applications. The fluid feed tube and
fiber optic turbine speed emitter are threaded
into the front of the manifold. The turbine,
fluid, and air manifolds are separated from the
bell plate assembly by five support rods.
Nested between the manifolds and the bell
Figure 1: RMA-303 Robot Mounted Rotary Atomizer–
Direct Charge
plate is the high voltage cascade.
Bell Plate Assembly
The bell plate assembly is designed to be at
ground potential when mounted to the robot
plate component within the tubing bundle as-
sembly. The air and fluid ports are compactly
oriented for use in robotic applications. The
interior air supplies are ported through the five
support rods and also directly to the air mani-
fold assembly. On the exterior side of the bell
plate, the ports are provided with O-ring seals
so that the atomizer can be quickly mated and
secured to the robot plate.
Robot Plate
The robot plate is a component of the tubing
bundle assembly and intended to be perma-
nently mounted to the robot. A wrist adapter
is also available, which matches the robot’s
mounting configuration. The incoming air
lines, fluid lines, low voltage cable, and fiber
optic cable are connected to the fittings pro-
vided on the back of the robot plate. The bell
plate of the atomizer assembly is secured to
the robot plate with a threaded retaining ring.
Break-Away Feature (Optional)
The RMA-303 can be converted to have a
break-away feature. By replacing the five (5)
stainless steel screws with five (5) special de-
signed plastic screws (77524-00). This fea-
ture minimizes the damage to the atomizer,
robot, etc. If a collision occurs, the five (5)
plastic break-away screws fail and the atomiz-
er will break free. This will leave the break-
away ring and the mounting ring attached to