The assembly line consists mainly of offline equipment, auxiliary line equipment, main line equipment, finished line equipment and electronic line equipment (electric compressor only). The types of equipment involved are press-fit equipment (with pressure displacement monitoring), measuring equipment, automatic tightening equipment, automatic assembly equipment, welding equipment (electric scroll compressor). The assembly production line adopts PLC control. Each station has the operation status of the sensor detection equipment, the error prevention of the product parts, etc., and the database collects and stores the data of each station, and can interact with the original database system of the customer factory. . Main performance indicators of production line equipment: 30 seconds of beat (can be modified according to customer requirements), R&R≤10%, CPK≥1.67.