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Yuequan Bionics Y-Hand M2 Bionic Dexterous Hand: 38 DOF, 6x Grasp Force, and the Tension-Compression Bionic Architecture

Forum topic · QianXun · 2026-08-23

Summary

At the 2026 World Robot Conference (WRC) parallel forum on bionic embodied intelligence, Yuequan Bionics founder Ren Lei, a professor at the University of Manchester, unveiled the Y-Hand series of bionic dexterous hands, YQ Motors, YQ Muscles artificial muscle modules, and the Quan Engine embodied intelligence model. The flagship Y-Hand M2 offers 38 degrees of freedom, 330N grasp force (over 6x conventional rigid dexterous hands), 0.2s five-finger closure, and 0.04mm fingertip repeatability, achieving 96% task success in complex operations. The lightweight Y-Hand M1 weighs 299.7g with 26 DOF, 200N grip, and 8 thumb DOF. The underlying innovation is the 'bionic tension-compression body' theory, in which rigid components bear compression and flexible components bear tension, mirroring the human musculoskeletal system and providing inherent passive compliance and safety. The lineup also includes the rigid X-Hand M1 for factory work (50kg payload, million-cycle lifespan) and the Y-Bot/W-Bot humanoid robots.

On August 20, at the 2026 World Robot Conference (WRC) parallel forum "Bionic Empowerment, Intelligent Creation of the Future — Bionic Embodied Intelligent Robotics Breakthroughs and Industrial Ecosystem Co-Building," Ren Lei — tenured professor at the University of Manchester, founder of Yuequan Bionics, and executive committee director of the Jilin Provincial Bionic Robotics Innovation Center — released a complete in-house product matrix: the Y-Hand series dexterous hands, YQ Motors, and YQ Muscles artificial muscle modules. Underpinning them all is what Ren Lei calls the "bionic tension-compression body" theory, which rethinks robot design across materials, joint structure, and actuation.

Y-Hand M2: flagship bionic dexterous hand

  • 38 degrees of freedom — among the world's top tier of dexterous hands
  • 330N total grasp force — more than 6x conventional rigid dexterous hands
  • 0.2s five-finger closure — near human-hand reaction speed, 3x faster than rigid hands
  • 0.04mm fingertip repeatability — over 2x the precision of rigid hands
  • These figures break the traditional "force–speed–precision" trilemma: conventional dexterous hands trade off compliance for strength and precision for payload, while the M2 reaches 2–6x rigid-hand performance across all three dimensions simultaneously.

    Y-Hand M1: lightweight variant

    Released in early July, the M1 weighs just 299.7g (less than a can of cola), integrates 26 DOF, achieves 200N five-finger grip, and assigns 8 DOF to the thumb alone — unusual in the industry, since most vendors stack DOF across all five fingers, while fine human manipulations (tip pinch, opposition, envelope grasp) rely mostly on the thumb. At WAIC, the M1 picked up a water bottle, a wrench, and a plush toy; the soft object was grasped without deformation using light fingertip contact plus compliant gripping.

    Supporting stack

  • YQ Motors: 8 series spanning 4–22mm, all core drive components domestically developed — the dedicated "power heart" of the dexterous hands
  • YQ Muscles: artificial muscle modules replicating human skeletal muscle biomechanics, delivering compliant and safe actuation
  • X-Hand M1: a rigid dexterous hand for heavy factory assembly lines — up to 50kg payload and a million-cycle lifespan — complementing the bionic Y-Hand series as a "soft vs. rigid" portfolio
  • The "bionic tension-compression body" theory

    Ren Lei explains: in the human musculoskeletal system, hard tissue primarily bears compression while soft tissue bears tension, working in coordination. Transferred to robotics, this becomes a multi-level integrated system where rigid components take compression and flexible components take tension, coupled rigid-flexibly. Unlike rigid hinge designs that concentrate both motion and load on stiff joints, this architecture sidesteps the deadlock of "high rigidity = high impact, high compliance = low precision."

    A key safety implication: conventional rigid human-robot collaboration depends on force sensors and control algorithms to cap collision forces, whereas the rigid-flex coupling of a tension-compression body provides passive compliance — flexible structures absorb impact before it reaches a person. This matters greatly for home service, medical assistance, and eldercare scenarios.

    Full-stack embodied intelligence

  • Y-Bot series: super-bionic neuromusculoskeletal robots with human-like motor intelligence and bio-level compliance
  • W-Bot 2.0 humanoid: light and agile, aimed at campus education, commercial guidance, and home service
  • "Zhuri" and "Zuiyue" quadrupeds: strong terrain adaptability on uneven and wild ground
  • Quan Engine: an embodied intelligence foundation model for multimodal perception and understanding, closing the loop from cognition to precise action with whole-hand, whole-arm, whole-body active sensing
  • Field data show the Y-Hand M2 maintains a 96% task success rate across repeated complex operations — a rare figure in dynamic, open environments. Yuequan Bionics' full-stack approach — original underlying theory plus in-house core components plus an embodied foundation model — is rare in China's embodied AI sector, where most players either build only models, only hardware, or integrate off-the-shelf foreign motors and drivers.

    Ren Lei stated that "bionic embodied intelligent robots are a core track of China's new productive forces and a strategic high ground of future industries." The same day, Changchun hosted the "Bionic Empowerment, Intelligent Creation of the Future" action-signing ceremony, including agreements on成果转化 and application scenarios, industrial ecosystem cooperation, and overseas expansion — moving bionic robotics from papers to industrial deployment.

    References

  • People's Daily Online, "2026 World Robot Conference releases multiple bionic embodied intelligent robotics achievements," 2026-08-23
  • The Paper (澎湃新闻), "Changchun bionic robots show hard sci-tech strength at WRC," 2026-08-22
  • Guangzhou Daily Dayang Net, "How can robots balance compliance, safety and intelligence? Bionic tension-compression body technology answers," 2026-08-22
  • China.org.cn Sci-Tech, "Bionic Embowerment forum successfully held," 2026-08-21
  • Yuequan Bionics WAIC 2026 public product materials (Y-Hand M1: 299.7g, 26 DOF, 200N grip, etc.)

Tags

#robotics#dexterous-hands#embodied-ai#bionics#humanoid-robots#yuequan-bionics#wrc-2026#artificial-muscles

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