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OptiGun 2-A(X) (GA02) Automatic powder gun
Structure and function
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17
Spray nozzles
Flat jet nozzle with vented central electrode
The vented flat jet nozzle serves for the atomizing and charging of the
powder. The powder cloud obtains an oval spray pattern by the slot-
shaped opening. The powder is charged by the central electrode. The
high voltage, which is created in the gun cascade, is conducted through
the black contact ring of the nozzle holder to the central electrode.
In order to prevent a powder sintering on the electrode, this is rinsed with
compressed air during spraying procedure. Therefore, the rinsing air is
fed through the small hole in the black contact ring of the nozzle holder
into the electrode attachment. The rinsing air adjustment on the control
module is explained in the corresponding operating manual.
Flat jet nozzle with vented central electrode
Round jet nozzle with vented deflector and
vented central electrode
The vented deflector is used to give to the powder stream emerging from
the gun the form of a powder cloud. The powder is charged by the central
electrode. The high voltage, which is created in the gun cascade, is con-
ducted through the black contact ring of the nozzle holder to the central
electrode.
Since powder can accumulate on the rear side of the deflector, this must
be rinsed with compressed air. The rinsing air is fed through the small
hole in the black contact ring of the nozzle holder into the electrode at-
tachment, and is driven in such a way, that it flows over the surface of the
deflector rear side. The rinsing air strength depends on the powder and
its sintering ability. The rinsing air adjustment on the control module is
explained in the corresponding operating manual.
Round jet nozzle with vented deflector and vented central electrode
High voltage
Rinsing air
High voltage
Rinsing air
