Frequently Asked Questions

Answer all your questions related to automated cleaning

1. What are Ultrasonic cleaners?

Ultrasonic cleaners are machines that use ultrasonic waves to clean the dirt or any residue present on the surface of the object. They come in different sizes, varying from compact desktop models to massive industrial machines.

2. How do Ultrasonic Cleaners work?

Ultrasonic cleaners work using ultrasonic waves. The process of how ultrasonic cleaners work is very simple. An object which needs to be cleaned is submerged in the tank of this cleaner and is filled with water ( chemicals or solvents are added if it is necessary ) and then ultrasonic waves of desired frequency are emitted toward the object through the liquid. To eliminate dirt, the agitation produces small cavitation bubbles that expand to a particular size before imploding on the surface of this object. This continuous process results in ultrasonic cleaning.
For a more detailed explanation of ultrasonic cleaners, you can check out this blog!

3. How long does Ultrasonic Cleaning generally take?

A few minutes may be sufficient for a light cleaning operation on a part with hard surfaces. Cleaning may take a lot longer if there are high amounts of deposits of grease or carbon to be removed. It is safe to say the time taken by ultrasonic cleaners to clean an object differs from each other. Ultrasonic cleaners typically clean significantly more quickly and effectively than conventional cleaning techniques, even for the most challenging cleaning tasks.

4. What can you clean using Ultrasonic Cleaners?

A broad spectrum of objects, such as metals, glass, rubber, ceramics, and some hard plastics, can be cleaned with ultrasonic cleaners. When cleaning intricate products with blind holes, fractures, and recesses, an ultrasonic parts cleaner is very helpful for eliminating impurities that are strongly bonded to the surface.

5. How do I know if my cleaner is working right?

Many tests can be performed on one’s own without a professional’s help to determine whether the cleaners are functioning or not.

For instance, a few techniques one can use to assess the effectiveness of ultrasonic cleaners include the foil test, pencil test, and cavitation meter. Feel free to check out this blog by Ralsonics for a detailed explanation.

6. How do I perform the foil test?

Fill the tank with water, take a rectangular piece of aluminum foil, place it in the center of the tank, turn on the ultrasound, sonicate the foil for at least a minute, remove the foil, and if there are visible holes present uniformly then your ultrasonic cleaners work well.

For future reference, it is best to store foil with the test date and serial number. For a detailed process check out this blog!

7. How do I perform the pencil test?

Take a frosted glass and mark a symbol on it with the help of a pencil, place it in your cleaner, and start the machine.

After a few minutes of observing if the mark disappears, the machine works just fine. For a detailed process, you check out this blog!

8. What is the optimum cleaning temperature?

It depends on the aqueous chemical used for cleaning. But if it is not mentioned explicitly, the ideal temperature would be somewhere between 55℃ to 65℃

9. How do I select the frequency?

The frequency completely depends on the product that needs to be cleaned. Frequency ranges from low to high, wherein the high frequency is preferred for objects that need to be cleaned delicately, and on the other end, low frequency is chosen when there’s a requirement for powerful scrubbing.

Engineers at Ralsonics can guide you through the selection of frequency for required results.

10. What is Ultrasonic cavitation?

Ultrasonic cleaning, also known as ultrasonic cavitation, is the process of briefly creating millions of bubbles per second which rapidly burst to create millions of small jets of liquid that gently cleanse the parts that are submerged in the tank.

11. How to check if the parts are cleaned or not?

It is important to run a Foil Test on your Ultrasonic Cleaner if you have any doubts about its effectiveness.

12. What is de-gassing and why is it important?

Degassing is the process of eliminating gases, such as air, that have been dissolved in a cleaning solution. The ultrasonic cleaner’s performance will be impacted by air and other gases dissolved in the cleaning solution. Better results will be obtained from the removal of these gases from the cleaning solution.

13. Do we provide heating?

Yes, Ralsonics provide heating.

14. Do we provide trays?

Yes, Ralsonics do provide trays along with the machine as per the requirement.

15. Do we provide recirculating filtration?

Yes, Ralsonics do provide recirculating filtration for Ultrasonic Cleaners.

16. Do we provide Multi-frequency Ultrasonic cleaners?

Yes, Ralsonics provide Multi-Frequency Ultrasonic cleaners as per the requirement.