These parts washers are designed for the spray washing of profiles, tubes and cylinders, using aqueous detergents at a temperature of 70°C maximum. These machines are mainly characterized by a “step-by-step” functioning. All machines are made of AISI 304 stainless steel and they are models for one or two wash treatments. The parts’ washing occurs in 4 phases:1) Internal washing, through moving nozzles, pushed into the tube by pneumatic cylinders, 2) External washing, through upper and lower fixed nozzles, which cover the whole surface, 3) Internal blowing, through blowers and moving nozzles pushed into the tube by pneumatic cylinders, 4) External electric hot air drying.