How do ultrasonic cleaning machines work?

How do ultrasonic cleaning machines work?

Ultrasonic cleaning machines are widely used in various industries to remove dirt, contaminants, and grime from different objects. These machines utilise ultrasonic waves to achieve a deep and thorough cleaning process. Let’s take a closer look at how these machines work.Introduction to ultrasonic cleaning machines

Ultrasonic cleaning machines are devices that generate high-frequency sound waves above the human hearing range. These sound waves create tiny bubbles, known as cavitation bubbles, in a liquid medium such as water or a cleaning solution. These bubbles collapse, producing a cleaning action that reaches into intricate parts and surfaces, providing a superior cleaning result.

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Generating ultrasonic waves

A large ultrasonic cleaner from a specialist such as consists of a transducer, a generator, and a cleaning tank.

The transducer transforms electrical energy from the generator into high-frequency sound waves. The generator produces the electrical signal, typically in the range of 20 to 80 kHz, which is sent to the transducer. The transducer then vibrates at the same frequency, creating ultrasonic waves in the cleaning tank.

Cavitation process

When the ultrasonic waves pass through the cleaning solution, they create high-pressure and low-pressure cycles alternatively. During the low-pressure cycles, the liquid rushes into the areas of low pressure, forming small bubbles.

These bubbles grow until they can no longer absorb the energy from the sound waves. Eventually, they collapse violently, releasing high-energy shock waves and producing microscopic jets.

These intense forces dislodge dirt, grease, and other contaminants from the surfaces of the objects being cleaned.

Cleaning solution

To enhance the cleaning process, a suitable cleaning solution is used in the tank. The cleaning solution helps to reduce surface tension, improve cavitation, and enhance the removal of dirt and contaminants.

Depending on the type of objects being cleaned, different cleaning solutions are used, ranging from mild detergents to specialised solvents.

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Benefits of a large ultrasonic cleaner

A large ultrasonic cleaner is particularly useful for cleaning larger objects or a high volume of smaller objects, making them ideal for a number of different industries, including automotive, aerospace, medical, and electronics manufacturing.

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