The principle of ultrasonic cleaning is to oscillate at high frequency for 38khz/ minutes by transducer. Convert to high frequency mechanical vibration, spread to water, cleaning articles efficiently. Its working mechanism is to improve the cleaning effect by using cavitation to double or more than ten times. When the water is put into the product sink and the ultrasonic wave is started, because the ultrasonic wave is a kind of dense and radiative high frequency wave in the water, the high speed reciprocating vibration of the water is caused. In the negative pressure region of vibration, due to the lack of time to replenish the surrounding water, millions of tiny cavitation bubbles are produced per second, a large number of bubbles are produced and exploded under the action of mechanical vibration waves produced by high frequency, while in the positive pressure region, the tiny bubbles suddenly close under pressure, and in the process of closing, the strong shock wave can form a instantaneous high pressure of up to thousands of atmospheric pressure due to the collision between water, which acts on the cleaned articles. Adsorption in the cleaning of greasy, impurities in the continuous instantaneous high pressure to quickly break away from the cleaning of the article. In order to achieve the purpose of cleaning. Ultrasonic can clean deep holes, thin seams and irregular hiding places.