The production process of paint coating resin is divided into feeding unit → powder material is divided into three units → grinding unit → paint mixing unit → filling system. In these process processes, due to the processing requirements of products, there will be high accuracy requirements for temperature. If the temperature does not reach a constant temperature, the quality of products will be affected to a certain extent. During the operation of the equipment, there will be certain heat generation that needs to be cooled. Now, it is mainly concentrated on the grinding unit for cooling. In the process of communication with customers, the customer needs a temperature between 8 and 13 ° C. Our company has made a complete set of solutions and refrigeration units for dozens of paint and ink manufacturers.