How Ultrasonic Cleaners Are Used for Engine Block Cleaning

Cleaning engine blocks with traditional methods can be difficult and time-consuming. Plus, they do not guarantee thorough cleaning. The use of ultrasonic technology to remove heavy surface grease and dirt from part surfaces is an attractive alternative to these traditional cleaning methods.

Automotive ultrasonic cleaners work by generating microscopic bubbles in the cleaning solution. The bubbles form and collapse in tune with the ultrasonic frequency. When they collapse, they create a tiny but energetic jet that strikes the engine block surface and dislodges deposits.

Low frequencies create comparatively larger cavitation bubbles and correspondingly powerful jets. The bubbles’ powerful cleaning action is suitable for robust parts with hard surfaces such as engine blocks.

Higher frequencies, on the other hand, create smaller cavitation bubbles and a gentler cleaning action. This makes these bubbles suitable for cleaning automotive parts with softer surfaces or delicate surface coatings to avoid pitting.

To clean the large automotive parts such as engine blocks, the parts have to be completely submerged in the cleaning solution. A suitable ultrasonic cleaning tank will hold the engine block with an allowance of several inches to facilitate the proper circulation of the cleaning solution and the cavitation bubbles, which form everywhere the cleaning solution can penetrate, even inside cavities and threaded holes. The complex shapes and surfaces that make an engine block hard to clean with traditional methods are easily cleaned by the cavitation bubbles in the ultrasonic cleaner.

Since automotive ultrasonic cleaners can quickly and efficiently remove heavy deposits from engine blocks and other automotive parts, they can provide significant benefits to automotive restoration and maintenance shops that use them. If they transition to ultrasonic technology, shops can achieve better cleaning performance, reduced costs, increased efficiency and a safer working environment.

For more details read the complete article titled “How Ultrasonic Cleaners Are Used for Engine Block Cleaning”. If you have questions or you would like to set up a free consultation, contact Kaijo via email at info@kaijo-shibuya.com or call 408-675-5575.

Ultrasonics Clean Semiconductor Components for Heart Pacemakers

Implants used in medical procedures are subject to extremely high standards of cleanliness and sterilization.

Traditional cleaning methods including manual cleaning, using parts washers and steam sterilization are often not effective for implants using new technology. Semiconductors are fragile and sensitive to heat; thus, they could be damaged from the traditional cleaning methods or excess heat.

Ultrasonics provide an attractive alternative to the traditional cleaning methods.  Medical ultrasonic cleaners can clean implants with complex shapes and crevices, heat-sensitive semiconductor parts and other medical devices to achieve cleanliness and sterilization standards without damaging fragile components.

Ultrasonic cleaners use the scrubbing action of microscopic cavitation bubbles in the cleaning solution to clean parts quickly and effectively. An ultrasonic generator produces a high-frequency electric signal, and an ultrasonic transducer converts the signal to sound waves in the cleaning solution. As the sound waves travel past the parts to be cleaned, they generate the tiny bubbles. The bubbles form and collapse in tune with the ultrasonic frequency, delivering a powerful scrubbing action against the surfaces of the parts to be cleaned.

While ultrasonic cleaning technology itself removes all traces of contaminants from the parts surfaces, it does not sterilize them. Therefore, a mild disinfectant or solvent can be added to the cleaning solution so that the parts can be cleaned and sterilized in the ultrasonic bath.

Some medical parts are robust with hard surfaces while others may be mechanically fragile or have delicate surfaces. Low frequencies (around 26 kHz) produce comparatively large bubbles with intense cleaning. Higher frequencies, on the other hand, deliver gentler cleaning with smaller bubbles. The frequency used with an medical ultrasonic cleaner needs to be chosen appropriately for the application to produce the right cleaning intensity.  Kaijo works with medical equipment manufacturers to provide expert guidance on using the right frequency and system for the specific application.

Read our newest article, Ultrasonic Clean Semiconductor Components for Heart Pacemakers, to learn more. If you would like to set up a free consultation to discuss your needs, or have questions, contact Kaijo Shibuya at 408-675-5575 or email info@kaijo-shibuya.com.