Ransburg Aerobell 33 AER5000, AER5001 - Manual (Page 11)

Aerbell 33 Rotary Atomizer - Introduction
Ransburg
7 LN-9521-00.4
Bell Assembly
This plastic bell cup is coated with a proprietary
resistance material for transfer of electrostatic
charge to the atomized fluid. Two different sized
bell cups are available: 30mm and 57mm. Each
bell cup size has a matching shroud and shaping
air ring. (See Table "A", Figure 16.)
Air Turbine Assembly
The air bearing turbine assembly with bell cup is
mounted to the air manifold assembly with four
socket head cap screws. The front resistor tube
is also attached to the air turbine assembly and
provides the high voltage connection to the motor
shaft and bell.
Air and Fluid Manifold Assembly
This unit mounts onto the insulator support rod
assembly with a swivel post. The fluid valve
manifold block is mounted directly onto the back
side, connecting with fluid passages internal to the
manifold. Tube connections for valve control lines
protrude through the rear shroud plate. The fluid
feed tube is screwed into the rear of this manifold
block and the air turbine assembly mounts to the
front with four socket head screws.
Insulator Support Rod Assembly
The air and fluid manifold assembly mount onto
the insulator support rod assembly, which in turn
is attached to the reciprocator or support stand.
Rear Shroud Assembly
The rear shroud assembly consists of a rear
bulkhead which provides a passageway for fluid
and air tubes, mounting rods to connect the rear
bulkhead to the air and fluid manifold assembly, a
fluid regulator mounted onto the outside surface
of the rear bulkhead, and a resistor module nest-
ed between the rear bulkhead and air manifold
assembly.
Resistor Module
The module encapsulates the high voltage re-
sistors necessary for control of the electrostatic
charge being fed to the bell through the high
voltage cable.
Power Supply and Junction Tank
The Aerobell 33 System operates with a variety of
high voltage power supplies. The power supplies
operate at output voltages of up to 100,000 volts
DC. Also available is a junction tank which is used
to distribute high voltage to multiple Aerobell 33
assemblies from a single power supply.
† The Aerobell 33 atomizer assembly
includes an internal resistor module and
resistor tube in series which provides ap-
propriate current limiting at the atomizer.
The resistance coating on the outer sur-
face of the bell not only transfers the high
voltage to the bell edge, but also helps to
control the discharge energy at the bell
edge to achieve safe operation.
NOTE
High Voltage Cables
The SSW-1064, high voltage cable, is used to
connect the power supply to the resistor module
inside the atomizer assembly.
Speed Monitor/Control
The Aerobell 33 rotary atomizer is designed to op-
erate with the Ransburg PulseTrack TM or Atomizer
Module for speed monitoring and/or speed control.
The high voltage equipment that is used in
this application creates a hazard for person-
nel. The high voltage power supply is not
approved for use inside of the spray booth,
as defined in NFPA-33. This high voltage
power supply can produce sparks which are
capable of igniting coating material.
W A R N I N G
!