New Breakthroughs Achieved by Wanxiang Qianchao in Robotics and Core Components for Low-Altitude Economy

As humanoid robots take more dexterous steps and low-altitude aircraft trace more stable trajectories, the powerful support of numerous precision core components is indispensable. As a global leader in precision bearings and chassis, Wanxiang Qianchao is focusing its forward-looking vision on two strategic frontiers: humanoid robots and the low-altitude economy. It has achieved a series of key technological breakthroughs in core components such as planetary roller screws, universal joints, joint modules, and low-altitude aircraft bearings, injecting strong momentum into the development of China's strategic emerging industries.

Part 1

Planetary Roller Screws

Micron-level Positioning Accuracy, Several-Fold Increase in Service Life

Targeting dexterous hand and high-load joint applications, Wanxiang Qianchao insists on the independent design and precision manufacturing of its entire series of planetary roller screws for humanoid robots, covering the core specification range of 2–8mm lead, maximum load of 20KN, and transmission efficiency ≥80%. Addressing industry challenges such as machining large aspect ratio workpieces, high-consistency manufacturing, and long-life stable operation, the company has systematically overcome key process bottlenecks, achieving micron-level positioning accuracy and a service life several times longer than traditional ball screws. While meeting high dynamic response requirements, this also provides solid support for the overall lightweighting of robots. Currently, this product series has entered the stage of in-depth technical exchanges with leading domestic and international humanoid robot companies, rapidly iterating based on the needs of next-generation screws, laying the foundation for the next stage of industrialization.

Part 2

Universal Joints

Multi-process Composite Machining: A Successful Extension from Traditional Universal Joints

Humanoid robots' wrists, necks, hips, ankles, and other parts require both pitch and yaw movements, and these two movements must be mechanically decoupled. Otherwise, motion coupling errors will lead to decreased positioning accuracy, torque crosstalk will increase energy consumption, and lengthy structures will result in low space utilization, among other problems. Wanxiang Qianchao's newly designed humanoid robot-specific universal joint allows a single joint to perform two degrees of freedom simultaneously, while maintaining a compact structure, high torque, long lifespan, and self-locking capability. In terms of manufacturing processes, addressing the demands for small-size, high-precision, and high-reliability manufacturing, Wanxiang Qianchao's precision shaft project team has constructed a multi-process composite machining system, achieving a precision tolerance within 0.003mm; a roughness below 0.02um; and a surface profile within 0.03. This successfully extends the technology from traditional universal joints to robot joint universal joints, providing a new systematic solution for more flexible, reliable, and longer-lasting humanoid robots.

Part 3

Joint Modules

Broad Peak Thrust Coverage, Perfect Matching for Key Components

Anchoring industry needs, Wanxiang Qianchao uses a reverse planetary roller screw as the core transmission unit, innovatively integrating a high-power-density frameless torque motor, highly integrated driver, high-precision encoder, and force sensor to construct a highly efficient conversion system from rotary motion to linear motion. Leveraging its deep research into precision transmission technology, this series of modules offers a broad peak thrust range of 500N-14000N, exhibiting significant competitive advantages in positioning accuracy, transmission efficiency, thrust density, and impact resistance. It can perfectly match key joints in humanoid robots such as the knee, ankle, elbow, and wrist, providing stable and precise power transmission. This breakthrough will become a crucial technological pillar driving humanoid robots from the laboratory to large-scale commercial application.

Part 4

Low-Altitude Aircraft Bearings

Breakthroughs in Core Technical Indicators, Successful Mass Production

Focusing on key product categories such as deep groove ball bearings, tapered roller bearings, motor bearings, crossed roller bearings, and four-point contact ball bearings, Wanxiang Qianchao has achieved breakthroughs in core technical indicators such as high reliability, long lifespan, low friction, and lightweight design, realizing the commercialization of its low-altitude bearing series products. For example, reliability has been improved to 99.5%, lifespan > 8L10h, and friction torque has been reduced by more than 30% compared to conventional products. Among these achievements, the high-reliability, low-friction bearing for the transmission system, customized for a leading heavy-duty UAV customer, has successfully passed a series of maiden flight tests and achieved mass delivery, providing crucial support for the safe and stable operation of low-altitude aircraft.

Based on Core Components, Empowering the Future of Industry

Wanxiang Qianchao insists on independent research and development of a full range of core components for humanoid robots and bearings for low-altitude aircraft, continuously improving the closed-loop industrial chain of precision high-end manufacturing. With key components as the fulcrum of innovation, Wanxiang Qianchao is committed to becoming an important engine for technological innovation, intelligent manufacturing, standard setting and high-end talent training in the global "mobile and intelligent control" field, and is fully empowering humanoid robots and the low-altitude economy industry to move towards a safer, more efficient and sustainable future.