The machine automatically controls the temperature, and cools the material at reflux. The multiple tubes structure, with high energy utilization rate and heat exchanging rate, is adopted to completely avoid from products material pasting and wall sticking. Sourcing parts as steam regulating system, valves, pump, and other auxiliary device, are all foreign or domestic famous brands. Stainless steel 304 or 316L material pipeline is adopted to satisfy operating requirements of different products materials, to make sure of satisfying food sanitary requirements and lengthening service life of equipments. To sum up, the machine is suitable to deal with the preheating treatment on products materials with certain viscosity in such industrial fields as food, beverage, paste, mild, etc. Main technical parameter: Production capacity: 3 10T/H Power: 4 5.5 kw Preheating temperature: 90 98°c Temperature control accuracy: ±1°c