WUHAN RAJA MECHANICAL MACHINERY CO.,LTD, which is a R & D and manufacturing enterprise focusing on commercial trailer axle assembly and its parts, is located in lianghsan county , hubei Province, The company has an annual production capacity of 600000 sets of trailer axle assembly, 200000 drive axle housing, 3 millionhubs, 2 million brake drums and other supporting parts, with a total investment of 3 billion yuan, covering an area of more than 70 hectares .The company is anaxleintelligent manufacturing plant built by the Group at any cost according to the standard of "Industry 4.0". What’s more, It is a strong base project for manufacturing 2025 in China and an automobile parts manufacturing enterprise with the largest one-time investmentin China.

　　The company has 6 seamless steel tube integral extrusion forming axle (shell) body automatic intelligent production lines with world advanced level and independent intellectual property rights. There are highprecision control extruder, stepping heat treatment line, multi-point straightening machine, shot blasting rust removal, testing and painting system to ensure that the whole line is automatic and intelligent. The company makes full use of the advantages of high utilization rate, short working procedure, strong rigidity, long service life and high accuracy of steel pipes of the Group, carries out finite element analysis on shaft design to make the product lightweight and have stronger bearing capacity.

　　The company always insists on improving the manufacturing process of axle. Its production lines are operated by robots, which is intelligent and automatic, and the production is organized in strict accordance with IATF16949 system. There are many production processes, including rough turning, finish turning, spindle medium frequency quenching, on-line straightening, accurate grinding, robot welding etc. The MarpossS. p. A on-line measurement instrument is used to ensure high accuracy. The main accessories are welded automatically by robots, and three hole boring finish machining is afterwelded brake base plate , which makes sure the axle rigidity, wear resistance and fatigue strength are safe and reliable. Advanced processing equipment and reasonably optimized processing technology make the axle consistency and interchangeability stronger. After installation, the comprehensive performance is better and the life span is longer .

　　In order to ensure the quality of the product, the key components are made by the company, such as hubs, brake drums and brake discs, and the first set of German kW full-automatic molding equipment with 2 sets, 180 cases / h, which is famous all over the world, is introduced. The modeling, core making, casting, conveying, shot blasting, polishing and painting are all operated by intelligent and fully automated equipment. The positive and negative two-way compaction production technology combined with modeling , on-line X-ray inspection and the casting process not falling to the ground can ensure the casting accuracy and safety. Hub, brake drum and brake disc machining manufacturing lines use online dynamic balance detection and make carefully each component to ensure high precision and interchangeability of products.

　　The products are created by professional teams and designed by the high-level European and American teams according to China's national conditions to realize the perfect combination of intelligence and automation of products.The product integrates a number of patent technologies and the assembly lines have high automation. Intelligent torque wrench, automatic grease filling, the whole process of assembly parameters and parts being traced, 100% online detection and automatic distribution of qualified nameplates, which can ensure that assembly quality is  stable and reliable. The products have been verified by a variety of road conditions throughout the country, ensuring the reliability of axle heavy load braking, greatly improving the safety and stability of the axle, and have the characteristics of long service life, long maintenance cycle and convenient maintenance.

　　The company has complete supporting facilities and establishes a  mold center and a testing center. The mold processing equipment is first-class in the industry. CNC machine tools, vacuum gas quenching heat treatment, three-coordinate detection and other advanced equipment have independent design and manufacturing capabilities of various tooling, fixtures, dies and non-standard equipment. The testing center is equipped with electro-hydraulic servo vehicle axle performance test bench and automotive brake torsion fatigue test bench to verify the product accuracy and reliability and complete the entire axle production in the factory.