2026, the Year of Mass Production for Humanoid Robots, witnesses landmark progress in precision reducers, the "heart of robot joints". Leading domestic manufacturers of harmonic, RV and dedicated cycloidal reducers have realized monthly mass delivery at ten-thousand-unit scale, breaking the long-term monopoly of overseas brands and removing core component barriers for mass production and cost reduction of humanoid robots.

According to Q1 2026 industrial monitoring data from China Academy of Information and Communications Technology, the localization rate of domestic harmonic reducers for humanoid robots has reached 60%-70%. The price of domestic products is only 40%-60% of imported Japanese counterparts, cutting the overall cost of joint transmission solutions by 30%-50% and bringing the cost of domestic humanoid robots down to the RMB 100,000 level.

As the domestic leader of harmonic reducers, GreenHarmony’s self-developed lightweight P-type harmonic series for humanoid robots reaches an accuracy of 5 arcseconds, matching high-end products from Harmonic Drive. It is the only domestic harmonic reducer tier-1 supplier for Tesla Optimus, with mass supply to domestic top OEMs including Unitree, Agibot and Ubtech. Its new 5 million-unit production line for humanoid-specific harmonic reducers was fully launched in July 2026, with long-term orders scheduled until late 2027.

RV reducers for heavy-load scenarios also achieve breakthroughs. Huandong Technology under Shuanghuan Transmission takes the lead in RV reducers for hip, knee and ankle load-bearing joints, with orders exceeding RMB 23 billion deliverable until 2028. Giant Wheel Intelligent’s new XT cycloidal reducer for humanoid robots has passed 3,000-hour durability tests, 50% lighter than traditional products and filling the domestic gap in humanoid-specific cycloidal transmission. Meanwhile, manufacturers including QuanZhiBo and Laifu Harmonic have launched automated integrated joint production lines, finishing one set of reducer-integrated joints within 90 seconds with a pass rate above 96%, supporting stable supply for ten-thousand-unit humanoid robot factories.

Industry statistics show domestic reducer manufacturers have shifted from prototype sampling to long-term bulk supply in 2026, with monthly shipments of leading suppliers exceeding 10,000 units. The booming upstream component supply signals the mass production ramp-up of downstream humanoid OEMs. Domestic reducers keep upgrading in torque density, repeat positioning accuracy and service life, with the self-supply rate of key raw materials such as flexible splines and circular splines rising above 85%, steadily advancing full industrial chain independent R&D and manufacturing.

As a core section of the 3rd Hangzhou International Humanoid Robot & Robotics Technology Exhibition 2027, Robot Components & Technology will showcase a full range of domestic transmission solutions including harmonic reducers, RV reducers and integrated joint modules. Exclusive one-on-one cross-border matchmaking sessions will be held to connect global overseas engineers, procurement specialists and system integrators with domestic core component suppliers. The platform empowers Chinese reducer manufacturers to expand global trade channels and accelerate localization across the worldwide humanoid robot supply chain.