Heavy Duty Vehicles Wheel Shaft High Frequency Harsh Conditions Mud Resistance

1.Product Description
The automotive high-reliability double universal joint shaft is made of high-strength alloy steel and precision manufacturing processes, designed for demanding applications such as mining vehicles and special-purpose vehicles. With its double cross-joint + reinforced half-shaft structure, it can withstand 11,000 N·m continuous torque and 20,000 N·m instantaneous impact torque while maintaining exceptional performance in high-temperature, high-humidity, and high-dust environments. With a failure rate below 0.01%, it is the ultimate replacement for traditional driveshafts.

2. Key Features

(1) High Durability

Chromium-molybdenum high-strength alloy steel + special heat treatment, increasing fatigue life by 200%

Multi-layered sealing structure with five sealing edges, high resistance to mud and sand

Operates in a wide temperature range of -45°C to +120°C, suitable for extreme environments like polar cold, deserts, and humid heat

(2) Superior Power Transmission

Double-joint structure eliminates speed fluctuations, transmission efficiency ≥97%

Dynamic balance grade G6.3, ensuring smooth high-speed operation

45° large-angle compensation, adapting to complex steering needs

3. Technical Specifications

4. Application Fields

(1) Mining Vehicles

Mining trucks

1,000+ hours of continuous operation with zero failure records

(2) Oilfield Vehicles

Exploration vehicles

Well-logging vehicles

(3) Firefighting Vehicles

Forest fire trucks

Airport fire trucks

5. Quality Commitment
✅ Full-process quality control: 100% magnetic particle inspection and torsion testing for half-shafts
✅ Rapid response: 60-day lead time for new custom prototypes, 15-day delivery for standard orders

Xi'an Xin Sanming Precision Equipment Co., Ltd was established in March 2015. Its predecessor was Xi'an Sanming Auto Parts Co., Ltd which established in 1996. The company's address is adjacent to large automobile production enterprises such as Shaanxi Heavy Duty Truck Co., Ltd. and Shaanxi Hande Axle Co., Ltd. It is surrounded by highways and has convenient transportation. The registered capital of the company is 10 million RMB Yuan, with a factory area of over 10000 square meters and an office area of over 500 square meters. The company currently has nearly 100 employees. The company is mainly committed to the research and development, testing, design, manufacturing, and sales of transmission system components such as automobiles. The company has an intelligent processing line, heat treatment production line, and assembly line with an annual output of 180000 sets of double series universal joints. It currently has more than 150 advanced production and manufacturing equipment such as intelligent manufacturing, and more than 50 high-precision testing equipment. For many years, the company has been supplying double joint universal joint assembly series products to enterprises such as Shaanxi Automobile Heavy Truck, Dongfeng Group, and XCMG Group, and has become a mature and stable cooperative supplier. The double universal joint shaft developed by the company is assembled in off-road vehicles such as Shaanxi Automobile and Dongfeng, and has participated in numerous domestic and international off-road vehicle rally races.

The company has always focused on technological innovation and product research and development, and has honed an excellent and efficient technical team, with more than 10 high-level transmission component engineering and technical research and development talents and complete product testing and verification methods. It can adapt to customers' personalized needs and market development needs, and develop various types of cross axis universal joint shaft products for users. The company has independently developed a series of double universal joint shafts and double centered universal joint shafts with complete intellectual property rights. After comparing the overall performance of similar products from customers with international first-class brands, the conclusion is that the performance is equivalent and can fully meet the needs of equipment with large angles, large torque transmission, and harsh working conditions. The company's products have obtained more than 20 patents and are widely used in various fields such as off-road vehicles, construction machinery, agricultural machinery, shipping, wheeled vehicles, aviation, etc. The company has been awarded the titles of "Shaanxi High tech Enterprise" and "Shaanxi Gazelle Enterprise", For many years, the company has been operating in accordance with the IATF16949-2016 quality system, ensuring controlled product quality.

The company's development goal is to continue to adhere to the business philosophy of "continuous technological innovation and continuous quality improvement", continue to adhere to the service tenet of "customer first", keep up with the development trends of international and domestic automotive, construction machinery, agricultural machinery, shipping, aviation and other fields, constantly experiment and explore the application of new materials and processes in universal joint shaft products, continuously improve technical level, continuously enhance enterprise management level, and strive to build the enterprise into a world-class supplier of transmission machinery components!