What is the reason for the popularity of Airless paint sprayer?

The Airless paint sprayer relies on a high-pressure pump in a closed container to pressurise the paint, increasing the paint itself to a high pressure (15-30 MPa) and feeding it into the spray gun via a hose. When the high-pressure paint enters the atmosphere through the nozzle, it immediately expands violently and atomises into very fine particles that are sprayed onto the painted surface.

• What technology does the Airless paint sprayer use?

• What is the reason for the popularity of Airless paint sprayer?

• How does the Airless paint sprayer work?

What technology does the Airless paint sprayer use?

Airless paint sprayer is to pressurize the paint to a pressure of 9.8MPa- 29.4MPa by a pressure pump, and then spray it out through a special olive-shaped nozzle hole. When the high-pressure paint flow rushes out of the nozzle and enters the atmosphere, it will crack and expand immediately. And it is broken into very fine paint mist and sprayed directly on the surface of the workpiece. Because the paint is pressurized to high pressure by a high-pressure pump, and the paint itself is not mixed with compressed air, which is completely different from the air spraying that uses compressed air to atomize paint, so it is called airless spraying.

What is the reason for the popularity of Airless paint sprayer?

1) High coating efficiency: The efficiency of Airless paint sprayer can be 3 times higher than that of air spraying and more than 10 times higher than that of brushing, especially suitable for spraying large workpieces and large-area workpieces. Airless spraying can obtain thicker coating film, reduce spraying times and improve coating efficiency.

(2) The quality of the coating film is good: the airless spray paint mist does not contain compressed air, which prevents the water, oil and dust in the compressed air from entering the coating film and improves the quality of the coating film.

(3) The pollution to the environment is greatly reduced: Airless paint sprayer does not use air atomization, the paint mist splashes less, and there is no need to add thinner or only a very small amount of thinner in the paint, which greatly reduces VOC emissions and is beneficial to the environment. protection of.

(4) Wide adaptability to paint viscosity: Airless paint sprayer can be used to spray ordinary paint with lower viscosity, as well as high viscosity paint and thick build paint, which is more suitable for the latter.

How does the Airless paint sprayer work?

The Airless paint sprayer applies high pressure (usually 11MPa-25MPa) to the paint to spray the paint from the nozzle. The moment the paint leaves the nozzle, it collides with the air at a high speed of up to 100m/s, breaking the paint into particles. Before the speed of the paint particles is attenuated, they continue to collide with the air for many times, and the paint particles are continuously crushed, so as to realize the atomization of the paint and adhere to the surface of the workpiece.

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