In recent years, this type of machine has entered with force in the automotive, aeronautic, hydraulic and general mechanical engineering sectors. Increasingly sought after, in these applications, are washing machines that are integrated in the automated island process with the characteristics of mechanical precision, versatility of interface with the surrounding automation systems and high production and quality efficiency in order to meet the ever more stringent cleaning requirements. The rotary table is the combination of all these features together in a small space and therefore it is easily incorporated in the lay-out. The operating principle calls for a table in multiple positions (typically 4-6-8) that moves in cadenced angular fractions, leading the pieces to be washed to as many stations equipped to perform a sequence of treatments. The table, worked by machine tools, is moved by an intermittent enveloping cam which is high speed and has decimal precision, in each of the positions; the table has equipment for holding pieces that can be euro pallets or normal pallets, or a device with pneumatic clamp, or a device capable of imparting rotation. The loading and unloading of the pieces can take place in one position or in two adjacent positions and may be carried out manually or by robots. Inside, within the various stations, is the washing equipment, which can operate with pressures up to 400 bar and can be of a high flow generic type, or of a calibrated type with predetermined masks, or even of an automated type. The process may be a simple washing and drying, but may also be performed with rinses, demineralised water, etc.