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march 12, 2020 - Toyota

Toyota Develops New Paint Atomizer with Over 95 percent Coating Efficiency, Highest in the World

New technologies that achieve high coating efficiency

  1. The tip of the airless paint atomizer features a rotating cylindrical head that optimize the amount of paint sprayed

Electrostatic atomization technology is used in beauty treatment devices and other instruments that spray fine amounts of liquid; here, we applied it to vehicle body painting. Specifically, the tip of the paint sprayer is cylindrical. Approximately 600 special grooves are inserted into the tip, which is rotated to create a centrifugal force, inducing the paint to flow into the grooves and atomize through static electricity. In this way, we developed the world's first technology that paints vehicle bodies with atomized paint particles using static electricity.

  1. Highly accurate current control that makes close-range painting possible

The unevenness of the vehicle body causes the distance between the cylindrical head and the vehicle body to fluctuate, making the electrical current unstable. However, the airless paint atomizer constantly monitors the variations in current and automatically controls the voltage, maintaining a distance of approximately 10 centimeters between the cylindrical head and the vehicle body. Hence, electrostatic atomization and electrostatic painting under a fixed current is rendered possible, in turn preventing variation in the size of the paint particles―the result is high-quality painting.

*As of March 2020, according to #Toyota Motor Corporation.

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