Millions of tiny bubbles created by the ultrasonic frequencies perform a kind of scrubbing action that reaches into grooves and hidden parts of products that are immersed into agitated water, solvent, or vapor.
Ultrasonic washers clean items that have come into contact with grease, dirt, wax, lubricants, oil, or other contaminants during the manufacturing process or industrial use and are otherwise difficult and tedious to clean. Though tightly bonded soils, greases, and contaminants cannot always be removed with the use of ultrasonic washers alone, combining aqueous cleaning techniques with ultrasonic cleaning technology has been found to be an effective and environmentally-safe method of cleaning.
Ultrasonic washers are capable of cleaning individual parts as well as multiple items simultaneously and are used in a variety of commercial and industrial applications. The automotive, pharmaceutical, medical, beverage, electronics, marine, sports equipment, and weapons industries all use large capacity ultrasonic systems to clean products like hard drive components, small automotive parts, and process machine components that have a build up of contaminants. Jewelry cleaning, window blind cleaning, and golf club cleaning are achieved with commercial ultrasonic washers.
Ultrasonic washers consist of a cleaning tank, which is usually made of stainless steel, cleaning fluid, which can be hot water or a water-based solvent, agitators, transducers, pumps or pressure generators, nozzles, and reclamation systems. Many also have drying systems.
Larger products are often placed right in the tank, while large amounts of smaller objects are submerged in the ultrasonic cleaning solution in a basket. In order to ensure that every product’s surface, holes, and cavities are cleaned properly, many washers have rotating parts holders, tumbling baskets, or oscillating systems.
Once the products or parts have been immersed in the cleaning solution, ultrasonic sound frequencies cause cavitation, which is the formation and implosion of millions of tiny bubbles in the liquid. When these bubbles implode, a scrubbing action to the product surfaces occurs, ridding them of contaminating substances. Small dirt particles that reside in hard-to-reach crevices are easily purged when using ultrasonic washers.
Ultrasonic washers are faster, require less manual labor and are more environmentally-friendly than chemical solvents or hazardous chemicals. There is a direct connection between the frequency of the sound waves and the number of implosions which allows for a high level of control; high frequencies are ideal for the removal of very small particles without harming the surface of the industrial part.