Developed by Beijing Inspire Robots Technology Co., Ltd., the RH56DFX Series is a humanoid 5‑finger dexterous hand that balances power and speed with a compact, lightweight design. Available in left‑hand (RH56DFX‑2L) and right‑hand (RH56DFX‑2R) configurations, as well as versions with an integrated 2‑DOF wrist (RH56DFXW‑2L / 2R), the DFX Series delivers reliable gripping performance for a wide range of robotic applications.
Key Features
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Human‑Like Grasping Force – Four‑finger fingertip output force reaches 1 kg each, while the thumb delivers 1.5 kg, enabling secure handling of objects with a natural human‑like grasp.
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Integrated Force and Position Sensing – Absolute position sensors and force sensors are embedded in each finger, providing real‑time force feedback for precise, adaptive gripping – essential for delicate or variable‑weight tasks.
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Power‑Off Self‑Locking – When power is disconnected, the hand maintains its position without drifting or dropping objects. On power‑up, the built‑in absolute encoders eliminate the need for re‑homing or recalibration, significantly reducing start‑up time.
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High‑Speed Articulation – Thumb lateral rotation speed reaches 107°/s, and four‑finger flexion speed reaches 260°/s, enabling rapid, responsive grasping and release actions.
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Lightweight Design – Weighing only 540 g (standard) or 650 g (with wrist), the DFX Series minimizes payload burden on robotic arms, making it ideal for lightweight and mobile platforms.
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Optional Integrated Wrist – The wrist‑equipped version (DFXW) adds 2 degrees of freedom: ±27° yaw and ±22° pitch, with a load torque rating of 2 N·m (excluding hand weight). This expands the hand’s workspace and dexterity without the need for separate wrist actuators.
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Flexible Communication – RS485 interface enables easy integration with a wide range of robotic controllers.
Technical Specifications
| Parameter | RH56DFX-2L / 2R | RH56DFXW-2L / 2R |
|---|---|---|
| Model | LH: RH56DFX-2L / RH: RH56DFX-2R | LH: RH56DFXW-2L / RH: RH56DFXW-2R |
| Degrees of Freedom | 6 | 6 + 2 (wrist) |
| Number of Joints | 12 | 12 (hand) + 2 (wrist) |
| Weight | 540g | 650g |
| Operating Voltage | DC 24V ±10% | DC 24V ±10% |
| Quiescent Current | 0.09A | 0.1A |
| Peak Current | 2A | 2A |
| Repeatability | ±0.20 mm | ±0.20 mm |
| Finger Strength (four fingers) | 15N (approx. 1.5 kg) | 15N |
| Thumb Strength | 10N (approx. 1.0 kg) | 10N |
| Force Resolution | 0.50N | 0.50N |
| Thumb Lateral Rotation Range | >65° | >65° |
| Thumb Lateral Rotation Speed | 107°/s | 107°/s |
| Thumb Flexion Speed | 70°/s | 70°/s |
| Four‑finger Flexion Speed | 260°/s | 260°/s |
| Wrist Yaw Movement | — | ±27° |
| Wrist Pitch Movement | — | ±22° |
| Wrist Load Torque | — | 2 N·m (excluding hand) |
Key Application Scenarios
| Scenario | Application Description |
|---|---|
| Humanoid Robot Integration | Compatible with major humanoid platforms – provides dexterous manipulation for service, research, and demonstration robots |
| Prosthetic & Assistive Robotics | Lightweight and responsive design makes it suitable for prosthetic hands and assistive devices |
| Educational & Research Labs | Ideal for robotics education, grasp planning studies, force control algorithms, and human‑robot interaction experiments |
| Lightweight Industrial Tasks | Small‑part assembly, electronic component handling, precision placement, and laboratory automation |
| Teleoperation & Remote Control | Paired with haptic gloves for remote manipulation in hazardous or hard‑to‑reach environments |
| Agile & Mobile Robots | Low weight (540‑650g) and low power consumption make it perfect for drones, mobile platforms, and legged robots |
Product Highlights
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Human‑like strength – 1.5 kg thumb / 1 kg four‑finger force for natural grasping
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Instant readiness – Power‑off self‑locking with absolute encoders – no homing required
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High speed – 260°/s four‑finger flexion speed for rapid operation
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Compact & lightweight – 540‑650g – ideal for weight‑sensitive platforms
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Integrated force feedback – Real‑time force sensing for precise, adaptive control
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Optional 2‑DOF wrist – Expands workspace with ±27° yaw and ±22° pitch
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RS485 communication – Simple, reliable integration with most control systems
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