Selecting the Best Frequency for Ultrasonic Cleaning Applications

The success and effectiveness of using industrial ultrasonic cleaners depend on matching the system frequency to the parts to be cleaned, and the type of contaminants being removed. An industrial ultrasonic equipment manufacturer with experience can help companies select the best frequency and ensure their ultrasonic cleaning performance is at an optimal level.
Ultrasonic cleaning depends on the generation of microscopic bubbles in the cleaning solution. The transducers in the ultrasonic cleaning system convert electric high-frequency signals into sound waves that travel through the cleaning bath. These sound waves turn into cavitation bubbles that do the cleaning and scrubbing action on the parts to be cleaned.
Low frequencies - Low frequencies for ultrasonic cleaning are usually below 40 kHz, while typical cleaning frequencies are 26 kHz and 38 kHz. Low-frequency waves produce comparatively large, energetic bubbles that deliver powerful scrubbing action. They deliver high-energy cleaning for robust parts with hard surfaces and for heavy contamination. These frequencies are suitable for metal, glass, or porcelain parts contaminated with oil and grease, uncoated glass components, jewelry coated with production residues, and some medical equipment.
Mid-range frequencies - Mid-range frequencies range from 40 kHz to 200 kHz, with typical frequencies being 78 kHz, 130 kHz, and 160 kHz. Mid-range frequencies produce bubbles that are for cleaning more fragile components, but they can still remove substantial surface dirt. These frequencies are suitable for hard disk drives, solar cells, LCDs, and parts made of ceramic and aluminum.
High frequencies - High frequencies range usually goes beyond 200 kHz, with typical frequencies being 200 kHz, 430 kHz, 950 kHz, and 1/6 MHz. High-frequency waves produce smaller bubbles for cleaning the most fragile and delicate components. The smaller size and the less robust energy of the bubbles ensure that the parts won't be damaged. These frequencies are suitable for cleaning semiconductor components, silicon wafers, LEDs, and delicate medical instruments.
Kaio provides expert help to customers in selecting the right industrial ultrasonic cleaner that meets their specific cleaning application requirements. Learn more by reading the complete article titled "Selecting the Best Frequency for Ultrasonic Cleaning Applications." Contact Kaijo Shibuya at 408-675-5575 or email info@kaijo-shibuya.com for a free consultation or quote.