How Do Ultrasonic Cleaning Transducers Work?

Ultrasonic cleaning transducers convert the high-frequency electric signal of an ultrasonic cleaning system to sound waves within the cleaning solution. Ultrasonic cleaning systems are made up of an ultrasonic generator, a transducer and a tank to hold the cleaning solution. Frequencies in the lower range from 20 kHz to 160 kHz effectively clean heavy hard to clean contamination from a robust part, while higher frequencies up 2 MHz are used for gentle cleaning of delicate components.

Ultrasonic Cleaning Transducer Features

Kaijo’s ultrasonic cleaning transducers have to generate an equal and consistent distribution of sound waves in the cleaning solution while withstanding the vibrations, temperature and the cleaning action of the system. Ultrasonic sound waves create high-energy cavitation bubbles in the cleaning solution, which create a scrubbing and cleaning action, dislodging the dirt and contaminants from the surfaces of the parts immersed in the cleaning solution. The cleaning solution may also contain mild detergent and can also be heated for faster cleaning.

The housing of Kaijo’s ultrasonic cleaning transducer is protected by 316L polished stainless steel so that the transducer is not affected by the cleaning solution and can resist the possible pitting from the cavitation bubbles. They are hermetically sealed and can operate in cleaning solutions of up to 100 degrees centigrade. Lower frequency range transducers are provided with power levels of 600 W or 1200 W, and higher frequency units are available at 1200 W.

There are three types of ultrasonic transducers:

• Immersible transducers – these are independent units and are the most flexible in their application. They can be placed into different tanks, or different transducers can be placed in the same tank.
• Bolt-on transducers– they can be semi-permanent placement on a cleaning tank.
• Mounted transducers– they are integrated into the tank.

If you would like additional information, read the complete article entitled “How Do Ultrasonic Cleaning Transducers Work?” You may also contact Kaijo at 408-657-5575 or email info@kaijo-shibuya.com to discuss what kind of ultrasonic transducer and cleaning system should be used for your application. 

Selecting an Ultrasonic Transducer for Your Cleaning Application

An ultrasonic cleaning system consists of a generator, an ultrasonic transducer, and a cleaning tank.

The role of the ultrasonic cleaning transducer is to transform an electrical high-frequency signal from the generator into ultrasonic sound waves in the cleaning solution contained in the tank.

Kaijo's ultrasonic cleaning transducers are made up of an electrical section that receives the electrical high-frequency signal from the generator and a mechanical section that vibrates at a high frequency. Once received, the electric signal is applied across piezoelectric crystals which change the signal into vibrations.

When the transducer is immersed in the liquid or cleaning solution, these vibrations result in corresponding ultrasonic waves in the solution. These ultrasonic waves travel through the liquid as compression peaks and troughs. Cavitation bubbles form in the troughs because of the low pressure, and they collapse again in high-pressure peaks. As bubbles collapse, they release an extremely powerful jet of cleaning solution that dislodges dirt, grime, and other forms of contaminants from the surface of the parts that are being cleaned in the solution.

These bubbles create a fast and effective cleaning action without damaging the underlying surface; they can clean even in the most inaccessible areas of the parts being cleaned. The result is rapid, efficient and thorough cleaning.

Types of ultrasonic cleaning transducers:

• Immersible transducer – A more flexible type of transducer, it can be placed in any tank in the cleaning solution. It can be positioned horizontally or vertically, as long as it is completely submerged in the liquid.
• Bolt-on or mounted transducer – It is permanently installed onto the walls or bottom of the cleaning tank.

For more details read the complete article titled “Selecting an Ultrasonic Transducer for Your Cleaning Application”. If you have questions about Kaijo’s ultrasonic transducers or would like to discuss the specific cleaning requirements for your application call 408-675-5575 or email info@kaijo-shibuya.com.

How Ultrasonic Waves Are Produced for Industrial Cleaning Applications

Industrial ultrasonic cleaners deliver cleaning performance that is faster, safer, and more efficient than traditional cleaning methods that use chemicals. Along with being more effective, this method is more environmentally friendly since cleaning doesn't require the use of harsh chemicals or mechanical scrubbing. Tiny cavitation bubbles generated by the ultrasonic system do the removal of impurities from a variety of parts and components, which range robust metal and ceramics to delicate semiconductors.

The three main components of the ultrasonic cleaning system consist of the ultrasonic generator, the transducer, and the cleaning tank.

The cleaning tank holds the cleaning solution as well as parts to be cleaned. It must be heavy and durable enough to withstand the cleaning action of the ultrasonic waves, and big enough to contain the biggest parts to be cleaned.

How doultrasonic cleaners work? The ultrasonic generator produces the electric signal which, in turn, generates the ultrasonic waves via the transducer.

The function of the transducer is to handle the frequency and power produced by the generator to create the ultrasonic waves in the cleaning solution. When the ultrasonic waves travel through the cleaning solution, it creates compression peaks and troughs. The tiny cavitation bubbles form in the troughs where there is low pressure and collapse in the peaks because of high pressure.

When the bubbles collapse, each of them releases a small but powerful jet of liquid, which produce an intense cleaning action on the surfaces of the parts being cleaned. This effectively dislodges any contaminants and any other impurities from the surface of the part being cleaned. The microscopic bubbles can clean even intricate shapes and hard-to-access holes and crevices. Result is fast and thorough cleaning.

Kaijo Shibuya offers a complete line of industrial ultrasonic cleaning equipment. Read the complete article “How Ultrasonic Waves Are ProduceHow Ultrasonic Waves Are Produced for Industrial Cleaning Applicationsd for Industrial Cleaning Applications” to discover how Kaijo Shibuya’s industrial ultrasonic cleaners can be used in your cleaning application. For a free consultation or quote call Kaijo at 408-675-5575 or email info@kaijo-shibuya.com. 

Selecting Ultrasonic Transducers for Industrial Cleaning Applications

Ultrasonic cleaning systems consist of three parts: the ultrasonic generator, the transducer, and the cleaning tank. The generator produces an electric signal and the ultrasonic cleaning transducer converts the signal into compression waves into the cleaning solution. The waves then produce cavitation bubbles that do the scrubbing action of the components to be cleaned.

The role of the transducer is quite crucial for the cleaning of components, parts, and tools. It produces compression waves through the piezoelectric material that expands and contracts when subjected to the electric signal. The transducer changes the height of the piezoelectric material with the help of the electric signal that comes from the ultrasonic generator. That way, the transducer produces compression waves when its metal surface, tightly bonded to the surface, vibrates at a selected frequency.

Ultrasonic cleaning transducers need to be heavy, rugged and durable enough to withstand severe vibrations and immersion in cleaning solutions, as well as to generate powerful compression waves. Their surfaces must also be designed to resist pitting due to the action of cavitation bubbles.

Kaijo offers transducers that are heavy, rugged and durable. They are hermetically sealed in 316L polished stainless steel housing and are designed to withstand immersion in cleaning temperatures up to 100 degrees Centigrade.

Ultrasonic cleaning transducers are available in bolt-on, immersible or mounted versions. Immersible versions are independent units connected to the generator via a cable can be moved and placed anywhere in the cleaning tank. Mounted tranducers are integrated into cleaning tanks and are usually purchased for specially designed cleaning applications. Bolt-on transducers are similar to mounted, but are bolted onto the sides or bottom of cleaning tanks in single or multiple-unit configurations.

Kaijo’s ultrasonic cleaning systems range in frequencies from 26 kHz to 2MHz. Their variable power output has maximums of 600W or 1200W. Kaijo is able to evaluate a customer’s needs and propose the right custom solution. Learn more about the Kaijo ultrasonic transducers by reading “Selecting Ultrasonic Transducers for Industrial Cleaning Applications.” If you have any questions, want a free consultation or quote call at 408-675-5575 or send an email to info@kaijo-shibuya.com.