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The world’s first fully automated humanoid robot joint manufacturing line officially began operations yesterday in Shanghai’s Pudong New Area. Located within the Zhangjiang Hi-Tech Park, this cutting-edge facility is initially designed to produce 100,000 robot joints annually, with future plans to increase capacity to 150,000 units. The line is managed by a leading Chinese provider specializing in integrated servo joints.
Spanning multiple stages—including assembly, testing, calibration, and quality inspection—the automated system ensures consistent performance of the joints. It meets the high accuracy and stability standards required for humanoid robots, guarantees a steady raw material supply for large-scale downstream production, and helps lower manufacturing costs.
Since joints are critical components of a robot’s power system and motion control, they directly influence precision and stability. These parts also make up nearly half of the total cost of a humanoid robot.
The company began mass production of robot joints in 2023, with sales reaching 30,000 units in 2024 and expected to hit 95,000 units in 2025. Previously, their joint production lines were semi-automated with manual support, but the new fully automated line is poised to significantly expand capacity.
In October 2024, the company was appointed as the primary supplier for AgiBot’s A2 humanoid robot series. A marketing manager stated that the market demand for robot joints remains strong. He emphasized that automated mass production of these joints is an essential step toward advancing robot applications and commercialization.
According to market research firm TrendForce, the global humanoid robot market is projected to grow at a compound annual rate of 154% from 2024 to 2027, which will further boost demand for robot joints. For example, Tesla’s humanoid robot, Optimus, includes a total of 40 joint actuators.
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