Ultrasonic cleaning is a highly efficient cleaning method that is widely used in a variety of industries for removing dirt, grease, and other contaminants from many different surfaces and products. This method uses high-frequency sound waves to generate tiny cavitation bubbles in a cleaning solution. These bubbles then implode, creating a scrubbing action that removes the contaminants from the item being cleaned.

The Principles of Ultrasonic Cleaning

The process of ultrasonic cleaning is based on the principles of cavitation. This is the process of creating tiny bubbles in a liquid using high-frequency sound waves. These bubbles are generated by the mechanical energy of the sound waves, which cause the liquid to rapidly expand and contract.

As the sound waves continue to oscillate, the bubbles grow larger and eventually reach a critical size where they implode. This creates a highly localized area of high pressure, which produces the scrubbing action that is the basis of ultrasonic cleaning.

Advantages of Ultrasonic Cleaning

One of the main advantages of ultrasonic cleaning is its efficiency. Because the cleaning process is based on the air bubbles and the principles of cavitation, it can remove dirt and contaminants from even the smallest crevices and hard-to-reach areas. This makes it an ideal cleaning method for a wide range of surfaces, including metals, plastics, ceramics, and delicate products like complex lumen and robotic surgical instruments.

Another advantage of ultrasonic cleaning is its speed. The constant formation and implosion of the bubbles creates strong vacuum energy that quickly lifts contaminants from the surface. At Ultra Clean Systems, we primarily use titanium rod transducers that sit within the liquid to produce the high-frequency sound waves. They provide a high-energy output distributed more evenly, eliminating cold spots.

The Equipment Used in Ultrasonic Cleaning

The equipment used in ultrasonic cleaning consists of an ultrasonic generator (transducer) and a cleaning tank. The ultrasonic generator is responsible for producing the high-frequency sound waves that generate the cavitation bubbles. The cleaning tank is where the cleaning solution and the items being cleaned are placed.

Choosing the Right Ultrasonic Cleaning Solution

The choice of cleaning solution is important for achieving the best results in ultrasonic cleaning. There are a wide range of cleaning solutions available, including water-based solutions, solvents, and specialized solutions designed for specific types of contaminants. It is important to choose a cleaning solution that is appropriate for the type of contamination being removed and the type of material being cleaned.

Selecting Your Machine

Now that you know how it works, you can determine which ultrasonic cleaner best suits your sterile processing needs. Smaller facilities may need only a tabletop machine, while facilities with multiple operating suites may need a large, freestanding machine with greater capacity. Once you’ve made a selection, use our statistics and downloadable justification memo to convince management of your facility’s need. If you have any questions, please contact us.