ULTRASONIC CLEANER

An ultrasonic cleaner uses very high frequency sound waves (inaudible to the human ear, typically ~20-40 kHz or higher) to clean.

The basic principles:

1. Transducer / ultrasonic converter
2. There is a transducer in the bottom (or sides) of the basin. This converts electrical energy into mechanical vibrations.
3. Liquid
4. You fill the basin with water or an aqueous cleaning liquid. Sometimes a mild detergent is added to loosen grease, oil or other contaminants.
5. Cavitation
6. The vibrations cause micro-bubbles to form in the liquid (in the low-pressure phase), which then collapse (in the high-pressure phase). These collapses release small shocks/pulses that loosen dirt, grease, rust, etc. from surfaces — even in hard-to-reach places such as crevices, holes or fine details.
7. Timer & temperature
8. You can usually set the time for how long the cleaner should run, and on some models you can also set the temperature of the liquid (heating helps with stubborn dirt).
9. Safety & use
• Never leave liquid without water (empty), as this can damage the transducers.
• Use a basket or grid so that the object being cleaned does not touch the bottom — otherwise cavitation will be reduced.
• Choose the right cleaning liquid: too aggressive can cause damage, too weak may not be effective enough.
• Rinse the object after cleaning to remove any residual liquid or cleaning agent.

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