The production process of paint, coating and resin is divided into feeding unit → powder is divided into three units → grinding unit → paint mixing unit → filling system. During these process, due to the high precision requirements of product processing, if the temperature does not reach a constant temperature, it will have a certain impact on the quality of the product. During the operation of the equipment, a certain amount of heat will be generated and needs to be cooled. Now it is mainly concentrated in the grinding unit for cooling. During the communication process with customers, the customer's required temperature needs to be between 8-13℃. Our company has made a full set of solutions and refrigeration units for dozens of paint and ink manufacturers.