You can see that the light atomization during the spraying process makes it almost impossible for you to see any mist spraying out, and then look at the uniform effect after spraying, so HDA-605 high speed electrostatic spray system is your best choice

Why is it that during the spraying process of liquid electrostatic rotary bell spray gun, there is basically no visible atomization, but the sprayed product effect is so good and uniform?

During the spraying process, the liquid electrostatic rotating bell-shaped atomizer produces almost imperceptible, extremely fine, electrically charged droplets of paint, rather than the coarse, visible spray produced by traditional air-based spray guns. The uniformity of the coating is achieved through the combination of centrifugal forces, electrostatic charges, and the shaping air, with these factors working together to produce a controlled and precise application.

How does this process generate fine mist?

High-speed rotation: The paint is introduced into the center of a rapidly rotating bell-shaped cup, which rotates at extremely high speeds, often in the range of tens of thousands of revolutions per minute (RPM).

Centrifugal force: This high-speed rotation creates a tremendous centrifugal force that disperses the paint into a thin, uniform film, which then flows towards the edges of the bell-shaped container.

Edge atomization: When the paint film reaches the outer edge of the bell-shaped object, the forces and surface tension cause it to break down into extremely fine, uniformly sized fibers or droplets. This process is so effective that the resulting mist is almost imperceptible to the naked eye.

How does this process ensure uniformity on the surface?

Electrostatic charging: High-voltage power supplies charge the bell-shaped cup and the paint flowing through it. When the paint becomes aerosolized, the droplets carry this type of charge.

Mutual repulsion: All charged droplets have the same polarity and repel each other. This mutual repulsion pushes the paint cloud outward, preventing the droplets from clustering together and ensuring a fine and uniform dispersion.

Attraction to the workpiece: The item being painted (the workpiece) has been grounded. The electrically charged paint droplets are strongly attracted to the grounded surface, drawing the paint towards various sides of the object, including recessed areas.

"Surrounding" effect: The electrostatic attraction creates a "surrounding" effect, where the paint is drawn towards the sides and back of the workpiece. This significantly reduces over-spraying and allows for a more complete and uniform coating, even on complex shapes.

Self-limiting deposition: The electrostatic attraction is strongest in areas that are not coated with paint. As the surface is being coated, the electrostatic field weakens, leading to a slower flow of paint. This self-limiting effect helps prevent run-off and achieves consistent film thickness.

Forming air: An additional forming air system aids in controlling the spray pattern, enabling precise spraying even in challenging areas, and assists in directing charged particles towards the target.