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A few days ago, six U-shaped production lines of the differential shell processing division of the main reducer section of China National Heavy Duty Trucks and Bridges Co., Ltd. were put into use, and their commitment to the second venture was implemented with the lean concept.
According to the series of new product plans, China Heavy-Duty Bridge Box Co., Ltd., in order to ensure the implementation of schedule, high standards and high efficiency to complete the construction of new product lines to achieve stable production under the state of mass production, Bridge Box Company held several meetings, emphasizing each The production unit to promote the second business strategy, the lean production lean management as a business development tactics, the company's main reducer department follows the principle of the shortest move, flow, make full use of the effective space, carry out reasonable planning and design, improve production, and finally A variety of production lines with poor shell production are adjusted to become simple U-shaped production lines, and the input and output ports of the production line are placed in one place. 
After the U-shaped layout of the equipment was adjusted, there was a higher demand for product turnover between processes. In the past, the rolling frame was apt to cause bumps on the contact surface of the product. For this reason, the department adjusted the height of the pedals of the production line uniformly, and Installation of fixing bolts and design of U-shaped production line slides on pedals. In order to reduce the labor intensity of workers, the U-shaped slide product turnover car has a simple design structure and measures to prevent knocking on the product placement surface.
After the U-shaped production line is put into use, the dedicated trolley eliminates the collision between the product and the equipment rack and the mutual collision between the products, effectively improving the quality of the product; the reduction in the number of items on the production line makes it more tidy and visualized; Organized and organized, the shortened turnover of logistics, reduced labor intensity, increased labor productivity, streamlined logistics, and streamlined production; thoroughly implemented 5S and established a quality assurance system. 
China National Heavy Duty Truck Group Jinan Bridge Box Co., Ltd. is a subsidiary of China National Heavy-Duty Truck Group Co., Ltd. Located in the high-tech development zone in Jinan City, the plant covers an area of ​​820,000 m2 and is recognized as a high-tech enterprise by Shandong Province. The leading products are heavy-duty vehicle axle assemblies and forgings. Through several rounds of large-scale technological transformation, Bridge Box has become a modern heavy-duty vehicle that combines the production of forgings, machining, and assembly into a whole, advanced manufacturing technology and equipment, and has a high impact on both domestic and international markets. The bridge production company has an annual production capacity of 600,000 heavy-duty axle assemblies.