Applications of Hofon coreless brushless geared motors in humanoid robots and dexterous hands

Hofon Hollow Cup Brushless Gear Motor: A Domestic Precision Power Solution for Humanoid Robots and Dexterous Hands

Hofon Motor (Shenzhen)2002 Established focuses on the research and development and manufacturing of micro precision motors.Hollow cup brushless geared motorWithMiniaturization, high power density, millisecond response, high precision, long lifespanIts core advantages have made it the mainstream driving choice for domestically produced humanoid robots and dexterous hands, deeply adapting to fingers. / wrist / Fine joints such as the neck support anthropomorphic precision operations.hfmotors.cn。

I. Hofon Core Technologies and Adaptation Advantages (Robots) / (Exclusively for dexterous hands)

1. Core structure and performance (compared to international top-tier standards)

·        Coreless hollow cup rotorCompletely eliminates eddy current losses and cogging effects in the iron core; rotational inertia is only that of a traditional motor.1/10,response **<5ms**<>No delay in start and stop

·        Brushless electronic commutation:life **>10000 Hour **(It's brushed) 3–10 (times), efficiency75–90%Low noise **<35dB (A)**Maintenance-free

·        Precision speed reduction integrationStandard configurationplanet / Harmonic reducerReduction ratio16–512Output torque20–300mN·mAdaptable to all scenarios from fingertips to wrists

·        Miniaturization designOuter diameter6–16mm(mainstream) 8/12mm),weight5–20gLighter than traditional motors of the same power30–50%Perfectly embedded in finger joints

2. humanoid robot / Advantages of dexterous hands

·        Ultimate Space Fitouter diameter in millimeters + Lightweight, can be integrated with a single finger2–3 indivualMotor, release wiring / Sensing / Transmission space

·        Millisecond-level dynamic response：**<5ms**<>Start and stop**0.1s Complete grasping within - release**,support **>120 Second-rate / minute ** High-speed capture and release beat

·        Micrometer-level precision controlGearless +12–14bit encoderRepeatability **±0.02mm**Force control precision **±0.1N**It can safely grab eggs, paper, and chips.

·        High integration and easy deployment:supportmotor + slow down + encoder + driveIntegrated design reduces wiring70%Adaptable to multi-degree-of-freedom distributed control

·        High cost performance of domestic products: Core components are domestically produced, and the cost is lower than that of imports (Maxon/Faulhaber)drop40–60%Shorter delivery time and better servicehfmotors.cn

II. Full-Scenario Applications in Humanoid Robots

1. Core application areas (preferred for delicate joints)

·        Dexterous Hands (Main Battlefield)single-handed carrying6–17 indivual Hofon hollow cup motor, drive 5 refer to 11–21 Degrees of freedom enable anthropomorphic actions such as pinching, twisting, grasping, releasing, rotating, and precise assembly.

·        wrist / elbowLightweight + Rapid response enables precise arm positioning, posture adjustment, and compliant interaction.

·        neck / headMiniaturized head for rotation and pitch, combined with vision for precise tracking and natural interaction.

·        face / EyesUltra-miniature (6mmMotors drive facial muscles and eye movements, enhancing the robot's human-like appearance.

2. Typical Application Case (Benchmark of Domestic Robots)

·        Domestic humanoid robotsDexterous hands / Wrist parts mass-produced using Hofon 8–12mm Hollow cup brushless geared motorIt enables high-speed gripping and force control, supporting precision operations in household chores, service, and industrial applications.

·        research / Educational humanoid robotThe first choice for university laboratories and entrepreneurial teams.6–8mm micro moduleAchieving precise multi-degree-of-freedom actuation at low cost

·        Medical rehabilitation humanoid robotLow noise, high precision, and long lifespan; suitable for rehabilitation training, nursing assistance, and other scenarios, ensuring safe human-computer interaction.

III. The core value in a dexterous hand (bionic hand) “Powerful Heart”）

1. Dexterous Hand Core Components (Hofon Solution)

·        drive unit Hofon Hollow cup brushless motor + Precision Planet / Harmonic reducer(core)

·        Transmission system: tendons / worm gear / Miniature electric cylinders convert rotational motion into finger flexion and extension.

·        Sensor controlBuilt-in encoder + Force sensor,FIREVector control + Force-position hybrid algorithm to achieve adaptive grasping and compliant control

2. Hofon Dexterity Hand Solution (Mainstream Selection)

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3. Solving the three major pain points of dexterous hands

·        Spatial contradictionsMillimeter-level motors are embedded in the finger, freeing up internal space and supporting more sensor and transmission integration.

·        Response bottleneckMillisecond-level start/stop capability overcomes the limitations of slow response in traditional motors, achieving...High speed, smooth, naturalfinger movements

·        Precision problemMicro Newton-level force control + Micrometer-level positioning, supportsfragile / small / alien objectsSecure capture, improving operation success rate

IV. Specifications of Honfon's Core Products (Robots) / (For dexterous hands only)

1. Mainstream models (directly compatible)

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2. Customization capabilities

·        CustomizableDrive and control integrated module(motor) + slow down + encoder + (Driver), further reduced in size30%Plug and play

·        supportSpecial environment adaptation（-40℃~120℃(Dustproof, waterproof) to meet industrial needs / Outdoor scenes

·        supplyForce control closed-loop solutionBuilt-in torque sensor enables compliant interaction and safe collision detection.

V. Domestic Substitution and Market Value

1. Breakthrough in domestic substitution

·        Hofon Hollow Cup Brushless Gear MotorFully benchmarked against international first-tier (Maxon/Faulhaber）With consistent core performance,Cost reduction 40–60%Shorter delivery time50%hfmotors.cn

·        EnteredMultiple domestically produced humanoid robots / Dexterity Hand Manufacturers Supply ChainTo achieve bulk supply and break the overseas monopoly

2. Market size and value

·        Quantity per humanoid robot:one hand 6–17 indivual + arm / neck / arm≈20–30 indivualValue per unit **>8000 Yuan **

·        Industry Forecast:2026 The mass production of humanoid robots drives the market for hollow cup motors.Over 10 billion yuanAs a core domestic supplier, Hofon has experienced explosive growth.

VI. Conclusion

Hofon hollow cup brushless geared motor relies onMiniaturization, high power density, millisecond response, high precision, long lifespan, and high cost-effectivenessIts core advantage has becomeThe preferred drive solution for the fine joints and dexterous hands of domestically produced humanoid robotsIt is the robot from “Active and capable of grasping” arrive “Anthropomorphic fine operation” Key hardware support. With the development of humanoid robots... 2026 Entering its first year of mass production, Hofon will continue to empower the domestic robot industry and promote the popularization and implementation of humanoid robots and dexterous hands.