The principle of all Rotowash models works on the basis of the machine’s own weight, two contra-rotating cylindrical brushes, the application of small amounts of clean water and a discharge drum. The waste water is transported into a waste water tank through adhesion via the drum’s special surface. The mechanical action of the brushes is regulated by the choice of contact pressure and the amount of clean water, to which detergents can be added if necessary. Via the special surface of this drum the dirty water is transported by adhesion into a dirty water tank. The mechanical action of the brushes is regulated by the choice of contact pressure and the amount of fresh water, to which cleaning agents can be added if required.
The models essentially differ in terms of working widths from 20 to 60 cm, single- or two-handed operation and water supply controlled electrically or by gravity. There are also other variables like the volume of the clean water tanks, the engine power and the cylindrical brushes. There are also variables such as the volume of the fresh water tanks, the engine power and the cylinder brushes.