Hydraulic system The hydraulic system consists of a hydraulic station, hydraulic cylinders, hydraulic pipelines, and accessories. Each incineration line is equipped with one set of hydraulic stations, and there are also two or three sets of super large incinerators. Each set of hydraulic stations includes: 1 hydraulic tank; oil circuit system with over–speeder; 3 circulating pumps, 2 use and 1 preparation: equalization box; oil cooler and starting oil heater, etc., assembled into one for supply, see Figure 4–20.