MobileClean units consisting of ultrasonic piezoelectrical transducers housed inside a waterproof stainless-steel box. MobileClean units can be installed into existing tanks retrofitting them or included in a brand new newly designed machine to ensure the sensitive cleaning of heavy dirt such as oil, grease, production wastes accumulated on all surfaces of the parts coming out of the production or maintenance line. MobileClean ultrasonic modules work with generators that convert mains voltage to ultrasonic power in a process known as cavitation.