Parallel monorail system is used in the spraying workshop of the factory. The biggest advantage of this KBK monorail system here is that it can integrate the different needs of the end customers into one production line to meet them. In some companies, such as surface treatment companies, different customers have different requirements for products, including cleaning, spraying or galvanizing, etc.When the production capacity reaches a certain amount and there is more than one production line, this application can greatly reduce the layout of tracks on the production line, reduce the cost of laying tracks, and greatly improve the utilization rate of tracks. This application can also be applied to other similar production lines.