Organization Name: CRRC Zhuzhou Rolling Stock Co., Ltd.

Project introduction:

The mode of production organization of railway freight car industry has the characteristics of“Multi-variety, large quantity, short delivery period and customization”, faced with the problems of labor-intensive, manufacturing discrete, product added value and low per capita output value. CRRC Zhuzhou Rolling Stock Co. , Ltd takes lean management as its guiding ideology, production line automation as its pillar and production information as its foundation, the key technology research and application of Lean digital production line based on the production of railway freight car body steel structure are carried out.

The production line fully considers the foresightedness, platform and lean of the railway freight car body manufacturing, breaks the shackles of the traditional technology, through lean management, production line automation, production information to achieve the improvement of manufacturing level and efficiency,benefit maximization. The main design idea is to realize a flow operation of manufacturing process based on process flow, logistics and value flow, and to reengineer production process with standardization and lean production as the core idea. Reduce labor, reduce production waste, reduce labor intensity, stabilize product quality, improve working environment, improve the essential safety of equipment and working process.The product line design realizes the flexible modularization, the Assembly convenience and the welding automation, promotes the manufacture process management the informationization level.

 At present, the production line has been put into batch production, which realizes the production line balancing and reduces the labor demand. The batch production of X70 container special flat car, C70EH general gondola car, FMG ore gondola car and Royhill ore gondola car has been realized. The use rate of crane is reduced by 87.5% by using RGV transmission trolley instead of crane, and the manual welding tire position adopts Chuck type turn over welding tire, which increases the safety essence.