The interest in the cleaning effect is based on the fact that cavitation occurs predominantly at inhomogeneity points, i.e. precisely where impurities adhere to surfaces. In a sense, the dirt itself attracts the cavitation, which eventually detaches it from the surface.
This process is also often referred to as 'micro-scrubbing' or 'electronic brushing'. However, ultrasound is a brush that is as gentle as it is thorough, because the effect of cavitation - applied in the short term - leaves even delicate surfaces intact and unfolds wherever cleaning fluid is present. Ultrasonic cleaning is an ideal method for cleaning blind holes, knurls, crevices and all kinds of cavities that are difficult to access manually. Entire assemblies, such as gearboxes, do not need to be disassembled for cleaning, but can be placed in an ultrasonic cleaning bath as a whole.
Ultrasonic cleaning is also suitable for sensitive parts, e.g. electronic components, printed circuit boards, inaccessible electrostatic filter cells, diesel valves or fine car injection nozzles. In medicine, too, the dirt-removing effect of cavitation is used in hospitals and medical practices to clean and shorten the time required for the chemical disinfection of fine cutting instruments, endoscope parts and especially micro-instruments.