Insert cups made of glass, plastic or stainless steel enable, for example, the simultaneous use of two different preparations without changing the bath (e.g. plaster removal and drill cleaning in the dental practice). The insert beakers hang in a perforated lid and must not stand directly in the bath.
Suspension trays made of plastic or insert cups made of glass, plastic and stainless steel allow cleaning with corrosive cleaning agents that would attack the stainless steel tray of the ultrasonic unit. Under certain conditions, flammable liquids can also be used for cleaning in insert cups.