Ransburg M90 Handguns 77073, 77132 - Manual (Page 12)

AH-99-01.3
GENERAL DESCRIPTION GENERAL DESCRIPTION GENERAL DESCRIPTION GENERAL DESCRIPTION GENERAL DESCRIPTION
The Ransburg The Ransburg The Ransburg The Ransburg The Ransburg
Electrostatic Mix Process
Electrostatic Mix Process Electrostatic Mix Process Electrostatic Mix Process Electrostatic Mix Process
This is a combined air/airless method for elec-
trostatically applying coatings to objects. The
M90 system applies a high voltage DC charge
to the applicator electrode, creating an electro-
static field between the electrode and the
grounded target. The target is electrically
grounded through its support which may be ei-
ther stationary or moving.
A regulated high pressure fluid system delivers
coating material to the fluid nozzle and is atom-
ized by passing through an orifice under pres-
sure. The atomized spray particles become
electrically charged under the influence of the
electrostatic field surrounding the nozzle. The
air supply to the gun aids in shaping the coating
material into a desired pattern. The charged
particles are attracted to and deposited on the
target object. The forces between the charged
particles and the grounded target are sufficient
to turn most normal overspray around and de-
posit it on the back surface of the target. There-
fore, a high percentage of the coating is deposit-
ed on the target.
A control unit provides either manual or auto-
matic operation of the equipment. Controls nor-
mally include, but are not limited to, fan and con-
veyor interlocks and a protective current over-
load device.
INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION
M90 Handguns - Introduction
8 8 8 8 8
M90 Handguns M90 Handguns M90 Handguns M90 Handguns M90 Handguns
(Cascade / Classic)
(Cascade / Classic) (Cascade / Classic) (Cascade / Classic) (Cascade / Classic)
The M90 Hand Gun applies a negative 85 kV
DC charge to the coating materials at the point
of atomization. This electrostatic charge allows
a more efficient, uniform application of coating to
the front, edges, sides, and back of products.
The M90 system is highly suitable for applying
coatings to a variety of surface configurations;
large targets, small parts, tubular wares, con-
cave and recessed parts, etc. Because it is a
grounded fluid system, it is highly suitable for
applying a wide range of solvent reduced coat-
ings such as enamels, lacquers, epoxies, etc.
The M90 Handgun system includes the Hand-
gun, Cable, Air and Fluid Hoses, and a Control
Unit.
The Cascade Control Unit provides low voltage
output to the gun and contains controls for AC
on/off, high voltage adjust, kV and microamp
meter.
The Classic Control Unit provides high voltage
output to the gun and contains controls for AC
on/off, high voltage adjust, kV and microamp
meter.
M90 with Aviator M90 with Aviator M90 with Aviator M90 with Aviator M90 with Aviator
The M90 may be used with the Aviator power
generator in hazardous locations. This equip-
ment meets Class 1, Division 1, Group D haz-
ardous location requirements. This allows mov-
ing the M90 power source inside most spray
booths or areas where the standard control unit
may not be conveniently located. Examples are
airplane hangers, etc.
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