Manufacturer of high quality equipment for powder coating
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51
Injector G2
Principle of the injector and influence of
supplementary air
If air flows through the nozzle into the cavity, a vacuum is created in the
cavity (see figure below). This vacuum causes powder to be drawn up
the suction tube and into the cavity. A powder/air mixture is created. The
forward air velocity at the nozzle conveys the powder/air mixture through
to the powder hose to the gun.
Conveying air
Supplementary air
Insert sleeve
to the powder gun
Booster nozzle
Powder/air mixture
Vacuum
Powder hopper
Suction tube
Fluidized powder
The concentration of the powder/air mixture, and with it, the powder out-put
depends on the conveying air pressure and supplementary air pres-sure, the
quality of the powder, the length of the powder hose, the diame-ter of the
powder hose, the number of coils in the hose, the difference in the height
between the gun and injector, and the type of nozzle. The