SJ-I is the optimized product produced on the basis of absorbing the advanced equipment in the same industry of both national and international. This machine adopts hot steam as the heat source, heats circulated water for heating medium for heat exchange. Then the material is loaded. The machine has high efficiency in the heating process, gentle and uniform heating for the products, good function for keeping warm, and it is easy to be cleaned, ensuring the effects of sterilization. It also has a low heat expansion rate for the equipment pipe, good stability, U-connection pipe can be opened for inspection. The machine is controlled be PLC computer, operated with touching screen. The system is able to be equipped with frequency speed adjusting for different packaging abilities. It also able to be equipped with CIP or central CIP systems. The machine is suitable for pure or fresh milk, flowered milk, soy bean milk, beverage, condiment, and other liquid food products, even with particle and small pieces like fiber. The machine is also suitable for the process of Pasteurizing to the fresh milk.