How to check your ultrasonic cleaner cavitation ?

For successful ultrasonic cleaning, sufficient energy level is necessary to induce cavitation responsible for the mechanical cleaning effects. A test to monitor the ultrasonic energy therefore has to indicate positive parameters for cavitation. A simple and easy to perform test to make sure sufficient cavitation exists in the ultrasonic cleaning tank is to perform the “Aluminum Foil Test”.

Ultrasonic Cavitation Test
Aluminium Foil Dipped in Ultrasonic Tank

Cut a small piece of aluminum foil (the one you get in your grocery store to cover foods) of size 4” x 4”. Take a simple cutting plier to hold the foil within the ultrasonic cleaner without dropping it in the tank. With liquid/water in the ultrasonic cleaner tank, switch the ultrasonic and then slowly dip the aluminum foil using the cutting plier. Hold the aluminum foil dipped into the liquid (water) for few minutes. After few minutes ( 3 to 5 min) pull out the aluminum foil and hold up the aluminum foil against sunlight / tube light to see if ultrasonic cleaner was able to pierce through the aluminum foil and create holes on the aluminum foil paper. If you see small holes on the aluminum foil paper, then it means your ultrasonic cleaner is generating cavitation (mechanical engery) to clean components effectively.

Holes on Aluminium Foil due to ultrasonic cavitation
Holes on Aluminium Foil due to ultrasonic cavitation

Click Here to see a video of this process we made for you.

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