Ransburg EFM & EFMD Solvent Applicator 76480, 76482, 76485, 76488 - Manual (Page 10)

AA-99-01.1
THE ITW RANSBURG THE ITW RANSBURG THE ITW RANSBURG THE ITW RANSBURG THE ITW RANSBURG
ELECTROST ELECTROST ELECTROST ELECTROST ELECTROSTA A A A ATIC TIC TIC TIC TIC
PROCESS PROCESS PROCESS PROCESS PROCESS
This process is a method for electrostatically
applying coatings to objects. A power supply
produces a high voltage charge which is supplied
to the applicator, creating an electrostatic field
between the applicator and the target object. The
target is electrostatically grounded through its
support which may be either stationary or moving.
A regulated fluid system delivers coating material
to the applicator, where it is atomized forming a
spray mist. There, under the influence of the
electrostatic field, the atomized coating becomes
electrostatically charged. The charged particles
are attracted to and deposited on the grounded
target object. The forces between the charged
particles and the target are sufficient to turn
overspray around and deposit it on the back
surface of the target. Therefore, a higher
percentage of the spray is deposited.
INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION
5 5 5 5 5
EFM AND EFMD EFM AND EFMD EFM AND EFMD EFM AND EFMD EFM AND EFMD
SOL SOL SOL SOL SOLVENTBORNE VENTBORNE VENTBORNE VENTBORNE VENTBORNE
APPLICA APPLICA APPLICA APPLICA APPLICAT T T T TORS ORS ORS ORS ORS
The EFM TM Solventborne Applicator line consists
of single and dual-headed 100 kV automatic
electrostatic spray applicators. Developed for
use on robots or reciprocators, the EFM
solventborne applicator incorporates a quick-
disconnect manifold and swivel tubing connections
to minimize downtime. Internal fluid and air
solenoids and an internal high voltage power supply
provide the user a compact, efficient tool for the
application of electrostatic coatings. Because this
is a grounded fluid system, the EFM solventborne
applicator is highly suitable for applying a wide
range of solvent reduced coatings such as enamels,
lacquers, two-component and other such coatings.
There are two single-head models of the EFM
Applicator. Each model differs in the applicator to
axis orientation of the spray head, these models
are:
76480-02 EFM 60
° Applicator
76482-02 EFM 90 ° Applicator
Two dual-head versions of the EFM Solventborne
Applicator are also available, designated EFMD
TM .
The dual-head version is identical to the EFM
applicator with the exception of an additional spray
head mounted to the applicator body. EFMD
Solventborne Applicators are primarily used where
high volume fluid delivery is required. These
applicators supply twice the fluid delivery over
Single-Head EFM Solventborne Applicators. The
EFMD Solventborne Applicator is available in two
different configurations as follows:
76485-02 EFMD 60 ° Applicator
76488-02 EFMD 90
° Applicator
Both EFM and EFMD Solventborne Applicators
are comprised of five major sections:
1. Spray head(s)
2. Valve manifold assembly
3. Quick-disconnect base manifold
assembly
4. Robot-mounted manifold assembly
5. High voltage cascade.
The spray head(s) and valve manifold contain the
fluid, air, and high voltage passages. Although the
quick-disconnect base manifold and robot-
mounted manifold are fabricated from aluminum,
all fluid passages are contained within stainless
steel and nylon fittings and are compatible with
halogenated hydrocarbon solvents. The robot
manifold incorporates stainless steel swivel fluid
connections. The swivel connections reduce
stress on the fluid lines minimizing breakage. No
aluminum parts are exposed to the fluid path on
either manifold. The high voltage cascade is
entirely encapsulated with a solvent resistant
epoxy.
EFM(D) Solventborne Robotic Atomizers - Introduction