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About
Description
Unitree Robotics -- Official Robotic Arm
Unitree R1-7a Professional H Robotic Arm
R1 Series
Professional H
13 DOF (7+6)
RGB Camera
Tactile Sensors
Linker Hand O6
0.82 lb Hand
Left/Right Versions
Official 13-DOF collaborative robotic arm system designed for the Unitree R1 humanoid robot platform. The R1-7a Professional H includes all features of the R1-7a Standard arm and comes equipped with the Linker Hand O6 five-finger dexterous hand (tactile, with RGB camera). With 13 total degrees of freedom (7 arm joints + 6 dexterous hand DOF across 11 joints: 6 active + 5 passive), linkage drive transmission, ultra-lightweight 0.82 lb (370 g) hand with 110.2 lb (50 kg) max load capacity, and <0.008" (<0.20 mm) repeat positioning accuracy, it provides a high-precision, high-strength five-finger manipulation solution with integrated tactile and visual feedback. Available in left-arm and right-arm mirror-image versions.
13
Total DOF
44.3 lb·ft
Max Arm Torque
0.82 lb
Hand Weight
110.2 lb
Max Load
<0.008"
Repeat Accuracy
12 mo
Warranty
Professional H vs. Professional G: The R1-7a Professional H features the Linker Hand O6 Tactile five-finger dexterous hand (with RGB camera), adding integrated tactile sensing to the Professional G configuration. This enables direct contact force measurement, slip detection, texture recognition, and adaptive grip control -- capabilities not available in the non-tactile Professional G variant.
Product Overview
The Unitree R1-7a Professional H Robotic Arm is the most advanced 13-DOF manipulation system in the R1-7a series featuring the Linker hand, designed for the Unitree R1 humanoid robot platform. Building on the proven R1-7a Standard arm with its 7 degrees of freedom and 44.3 lb·ft (60 N·m) maximum joint torque, the Professional H variant adds the Linker Hand O6 five-finger dexterous hand (tactile, with RGB camera) as standard equipment, bringing the total system to 13 degrees of freedom (7 arm joints + 6 dexterous hand DOF distributed across 11 joints: 6 active + 5 passive).
The arm features low-inertia high-speed inner-rotor PMSM bionic joint motors with high torque and high burst output, housed in a lightweight metal body with engineering plastic components. The integrated Linker Hand O6 Tactile dexterous hand features a five-finger architecture with 6 DOF, 11 joints (6 active + 5 passive), linkage drive transmission, <0.008" (<0.20 mm) repeat positioning accuracy, ultra-lightweight 0.82 lb (370 g) construction, 110.2 lb (50 kg) max load capacity, and integrated tactile sensing. The hand includes an integrated RGB camera for visual feedback. Each arm joint utilizes dual encoders for precise feedback. Supports flexible mounting (upright, side, inverted) and offers high-speed 485 communication for the arm.
13-DOF Complete System
7 arm joints plus 6 dexterous hand DOF (6 active + 5 passive joints) deliver a fully integrated five-finger manipulation solution. Linker Hand O6 Tactile with RGB camera included.
Linker Hand O6 Tactile
Five-finger dexterous hand with 6 DOF, 11 joints, linkage drive, 0.82 lb (370 g) weight, 110.2 lb (50 kg) max load, <0.008" accuracy, and tactile sensing.
Integrated Tactile Sensing
Tactile sensors across the hand surface enable direct contact force measurement, slip detection, texture recognition, and adaptive grip control for intelligent manipulation.
44.3 lb·ft (60 N·m) Torque
7 independent joints driven by low-inertia high-speed inner-rotor PMSM bionic joint motors. High burst output enables robust manipulation and dynamic humanoid tasks.
Dual Encoder Per Joint
Each of the 7 arm motors is equipped with a dual encoder system for redundant, high-resolution position feedback and reliable closed-loop control.
High-Speed 485 Communication
High-speed 485 communication protocol for the arm. Robust, noise-resistant protocol suitable for humanoid robot integration and industrial environments.
Linker Hand O6 Tactile Five-Finger Dexterous Hand
The R1-7a Professional H comes equipped with the Linker Hand O6 Tactile five-finger dexterous hand, providing advanced human-like manipulation capability with integrated tactile and visual feedback:
Linker Hand O6 Tactile -- Standard Equipment
- Type: Five-finger dexterous hand (tactile, with RGB camera).
- DOF: 6 active degrees of freedom distributed across the five-finger architecture.
- Joints: 11 total joints (6 active + 5 passive) enabling complex finger articulation and human-like grasping patterns.
- Transmission: Linkage drive -- efficient mechanical force transmission for high load capacity and reliable operation.
- Weight: 0.82 lb (370 g) -- ultra-lightweight design minimizes arm payload requirements.
- Max Load: 110.2 lb (50 kg) -- exceptional load capacity for a dexterous hand of this size.
- Repeat Positioning Accuracy: <0.008" (<0.20 mm) -- high-precision repeatability for consistent manipulation performance.
- Tactile Sensing: Integrated tactile sensors for direct contact force measurement and adaptive grip control.
- RGB Camera: Integrated camera for on-hand visual feedback during manipulation tasks.
Integrated Tactile Sensing
The Linker Hand O6 Tactile dexterous hand features integrated tactile sensors, providing direct contact force feedback across the hand surface:
Tactile Sensing -- Integrated in Dexterous Hand
- Direct Force Measurement: Unlike non-tactile variants that rely on motor current estimation, tactile sensors provide direct, accurate contact force readings at the point of interaction.
- Slip Detection: Real-time tactile feedback enables slip detection and automatic grip adjustment to prevent object dropping during manipulation.
- Texture Recognition: Tactile sensor array supports surface texture analysis for material identification and quality inspection applications.
- Adaptive Grip Control: Force feedback enables closed-loop grip control, adjusting pressure based on object fragility and surface properties for safe handling.
- Contact Localization: Distributed tactile sensors identify contact location and pressure distribution for intelligent manipulation planning.
- Enhanced Safety: Tactile feedback enables safe human-robot interaction by detecting unexpected contact and triggering appropriate responses.
Fingertip Force Specifications
The Linker Hand O6 provides specific force ratings for different grasping configurations:
Fingertip & Grip Force Ratings
- Max Fingertip Force (Thumb): 4.5 lbf (20 N) -- precise force control for thumb-based manipulation and precision pinching.
- Max Fingertip Force (Four Fingers): 5.6 lbf (25 N) per finger -- consistent force delivery across index, middle, ring, and pinky fingers.
- Max Grip Force (Five Fingers): 15.7 lbf (70 N) -- combined five-finger grip force for secure power grasping of heavy objects.
- Force Distribution: Optimized force distribution across all five fingers enables adaptive grasping for various object shapes and sizes.
- Linkage Drive Efficiency: Mechanical linkage transmission ensures efficient force delivery from actuators to fingertips with minimal energy loss.
Integrated RGB Camera
The Linker Hand O6 Tactile dexterous hand features an integrated RGB camera, providing critical visual feedback directly at the point of manipulation:
RGB Camera -- Integrated in Dexterous Hand
- On-Hand Vision: Camera positioned at the dexterous hand provides first-person view of the manipulation workspace, enabling precise object identification and positioning.
- Object Recognition: RGB imagery supports real-time object classification, color detection, and feature identification during manipulation tasks.
- Visual Servoing: Close-proximity camera enables visual feedback control loops for precision grasping, alignment, and placement operations.
- Quality Inspection: High-resolution imagery supports in-process quality checks, defect detection, and verification of manipulation outcomes.
- SDK Integration: Full SDK support for camera control, image processing, and integration with arm control systems for coordinated vision-manipulation workflows.
- Reduced External Dependencies: Integrated camera eliminates the need for separate external vision systems in many applications, simplifying setup and reducing cost.
Five-Finger Architecture
The Linker Hand O6 features a five-finger architecture with 6 active DOF and 5 passive joints across 11 total joints, enabling human-like dexterity and versatile grasping patterns:
Thumb
Opposable thumb design enables precision pinch grasps, power grasps, and complex in-hand manipulation. Critical for human-like dexterity.
Index Finger
Independent articulation for pointing, trigger-style manipulation, and fine tactile exploration. Supports precision and power grasp modes.
Middle Finger
Central finger provides stability and force distribution during object manipulation. Key contributor to power grasp envelope.
Ring Finger
Supports power grasp completion and lateral stabilization. Works in coordination with pinky for secure wrapping of large objects.
Pinky Finger
Completes the five-finger architecture for adaptive grasping and in-hand manipulation of complex objects. Enhances grasp security.
11 Joints (6 Active + 5 Passive)
11 joints distributed across five fingers with 6 active and 5 passive degrees of freedom. Linkage drive enables coordinated finger movement.
Left/Right Arm Mirror Configuration
The R1-7a Professional H is available in left-arm and right-arm versions, specifically designed for bimanual humanoid robot integration:
Left-Arm & Right-Arm Mirror Versions
- Mirror-Image Design: Left and right arms are precise mirror images of each other, enabling symmetrical bimanual manipulation for humanoid robot applications.
- Default Right-Arm SKU: For single-arm applications, the default configuration is the right-arm SKU. Specify left-arm when required for your application.
- Bimanual Integration: Designed for seamless integration with the Unitree R1 humanoid robot platform, supporting coordinated dual-arm manipulation tasks.
- Selection Guidance: When left/right distinction is required, select per actual needs. Both versions share identical technical specifications and performance characteristics.
Control System & Interfaces
The R1-7a Professional H provides comprehensive real-time control and flexible integration options for humanoid robot applications:
Arm Communication Protocol
High-speed 485 communication interface for the arm. Robust, noise-resistant protocol suitable for humanoid robot integration and industrial environments.
Total DOF
13 DOF (7 arm joints + 6 dexterous hand DOF across 11 joints: 6 active + 5 passive). Coordinated control of arm and hand through unified communication interfaces.
Control Methods
SDK and host computer control for seamless integration with humanoid robot control systems and research platforms.
Operating Temperature
Wide operating range of -4°F to 122°F (-20°C to 50°C). Ensures reliable performance in diverse environmental conditions.
What's Included (Per Arm)
Each R1-7a Professional H Robotic Arm package contains the following components:
| Arm | R1-7a Robotic Arm Unit | Complete 7-DOF robotic arm assembly with low-inertia high-speed inner-rotor PMSM motors, dual encoders, and industrial crossed-roller bearings. Specify left or right arm version. |
| Hand | Linker Hand O6 Tactile Five-Finger Hand with RGB Camera (x1) | Standard equipment -- Linker Hand O6 five-finger dexterous hand (tactile) with 6 DOF, 11 joints (6 active + 5 passive), linkage drive, 0.82 lb (370 g) weight, 110.2 lb (50 kg) max load, <0.008" (<0.20 mm) accuracy, integrated tactile sensing, and RGB camera. |
| Accessory Kit | Power & Data Module Kit (x1) | Power and data module accessory kit for integration with humanoid robot systems. Power must be supplied by user via XT30 port. |
| Documentation | Development Documentation | Comprehensive development documentation, SDK reference, API documentation, and ecosystem support materials. |
Important Notes
- Left/Right arm selection: The R1-7a comes in left-arm and right-arm versions (mirror images). For single-arm applications, default is right-arm SKU. Specify left-arm when required.
- Linker Hand O6 Tactile: Five-finger dexterous hand (tactile) with 6 DOF, 11 joints (6 active + 5 passive), linkage drive, 0.82 lb (370 g) weight, 110.2 lb (50 kg) max load, and <0.008" (<0.20 mm) repeat positioning accuracy. Includes integrated tactile sensing.
- RGB camera included: The Linker Hand O6 Tactile includes an integrated RGB camera for on-hand visual feedback.
- Power adapter NOT included: Power must be supplied by user via XT30 port (24V-60V). Ensure your power supply can handle the 700W peak load.
- Hand specifications: Linker Hand O6 Tactile -- 6 DOF, 11 joints (6 active + 5 passive), linkage drive, 0.82 lb (370 g), 110.2 lb (50 kg) max load, <0.008" (<0.20 mm) accuracy.
- Force ratings: Thumb: 4.5 lbf (20 N); Four fingers: 5.6 lbf (25 N) each; Five-finger grip: 15.7 lbf (70 N).
- Communication interfaces: Arm uses high-speed 485. Ensure compatibility with your humanoid robot communication system.
- Technical support: Excellent technical support and comprehensive development documentation provided. Full ecosystem support for humanoid robot integration.
- 12-month warranty: 12-month warranty on the entire unit. Warranty covers manufacturing defects and normal operational use.
Technical Specifications
| Product Name | R1-7a Professional H Robotic Arm |
| Product Series | Unitree R1 Humanoid Robot Arm |
| Arm Version | Left-arm or Right-arm (mirror images, default right-arm for single-arm applications) |
| Total Degrees of Freedom | 13 (7 arm joints + 6 dexterous hand DOF) |
| Arm Joint Motors | Low-inertia high-speed inner-rotor PMSM; bionic joint motor with high torque and high burst output |
| Max Joint Torque | 44.3 lb·ft (60 N·m) |
| Joint Feedback | Dual encoders |
| Hand Model | Linker Hand O6 five-finger dexterous hand (tactile, with RGB camera) |
| Hand DOF | 6 active |
| Hand Joints | 11 (6 active + 5 passive) |
| Transmission | Linkage drive |
| Hand Weight | 0.82 lb (370 g) |
| Max Load | 110.2 lb (50 kg) |
| Repeat Positioning Accuracy | <0.008" (<0.20 mm) |
| Tactile Sensing | Integrated tactile sensors (Tactile variant) |
| Max Fingertip Force (Thumb) | 4.5 lbf (20 N) |
| Max Fingertip Force (Four Fingers) | 5.6 lbf (25 N) per finger |
| Max Grip Force (Five Fingers) | 15.7 lbf (70 N) |
| RGB Camera | Integrated in Linker Hand O6 Tactile Dexterous Hand |
| Arm Communication Protocol | High-speed 485 |
| Mounting Options | Upright, side, inverted |
| Supply Voltage | 24 V to 60 V DC |
| Power Consumption | Peak power 700 W; typical power ≤ 50 W |
| Operating Temperature | -4°F to 122°F (-20°C to 50°C) |
| Accessory Kit | Power & data module accessory kit x1 included |
| Warranty | 12-month warranty on the entire unit |
* Specifications are based on manufacturer data and may vary slightly by production batch.
* The R1-7a Professional H includes all features of the R1-7a Standard arm plus the Linker Hand O6 five-finger dexterous hand (tactile, with RGB camera).
* Left/right arm versions available (mirror images). Default is right-arm SKU for single-arm applications.
* RGB camera and tactile sensing are integrated in the Linker Hand O6 Tactile dexterous hand for on-hand visual and force feedback.
* Power adapter NOT included. Power must be supplied by user via XT30 port (24V-60V). Peak power: 700W.
* Hand specifications: 6 DOF, 11 joints (6 active + 5 passive), linkage drive, 0.82 lb (370 g) weight, 110.2 lb (50 kg) max load, <0.008" (<0.20 mm) repeat positioning accuracy.
* Force ratings: Thumb 4.5 lbf (20 N); Four fingers 5.6 lbf (25 N) each; Five-finger grip 15.7 lbf (70 N).
* Secondary development requires advanced programming skills and familiarity with multi-DOF robotics control.
* Unitree is a registered trademark of Unitree Robotics. Linker is a trademark of Linker Robotics.
Description
Unitree Robotics -- Official Robotic Arm
Unitree R1-7a Professional H Robotic Arm
R1 Series
Professional H
13 DOF (7+6)
RGB Camera
Tactile Sensors
Linker Hand O6
0.82 lb Hand
Left/Right Versions
Official 13-DOF collaborative robotic arm system designed for the Unitree R1 humanoid robot platform. The R1-7a Professional H includes all features of the R1-7a Standard arm and comes equipped with the Linker Hand O6 five-finger dexterous hand (tactile, with RGB camera). With 13 total degrees of freedom (7 arm joints + 6 dexterous hand DOF across 11 joints: 6 active + 5 passive), linkage drive transmission, ultra-lightweight 0.82 lb (370 g) hand with 110.2 lb (50 kg) max load capacity, and <0.008" (<0.20 mm) repeat positioning accuracy, it provides a high-precision, high-strength five-finger manipulation solution with integrated tactile and visual feedback. Available in left-arm and right-arm mirror-image versions.
13
Total DOF
44.3 lb·ft
Max Arm Torque
0.82 lb
Hand Weight
110.2 lb
Max Load
<0.008"
Repeat Accuracy
12 mo
Warranty
Professional H vs. Professional G: The R1-7a Professional H features the Linker Hand O6 Tactile five-finger dexterous hand (with RGB camera), adding integrated tactile sensing to the Professional G configuration. This enables direct contact force measurement, slip detection, texture recognition, and adaptive grip control -- capabilities not available in the non-tactile Professional G variant.
Product Overview
The Unitree R1-7a Professional H Robotic Arm is the most advanced 13-DOF manipulation system in the R1-7a series featuring the Linker hand, designed for the Unitree R1 humanoid robot platform. Building on the proven R1-7a Standard arm with its 7 degrees of freedom and 44.3 lb·ft (60 N·m) maximum joint torque, the Professional H variant adds the Linker Hand O6 five-finger dexterous hand (tactile, with RGB camera) as standard equipment, bringing the total system to 13 degrees of freedom (7 arm joints + 6 dexterous hand DOF distributed across 11 joints: 6 active + 5 passive).
The arm features low-inertia high-speed inner-rotor PMSM bionic joint motors with high torque and high burst output, housed in a lightweight metal body with engineering plastic components. The integrated Linker Hand O6 Tactile dexterous hand features a five-finger architecture with 6 DOF, 11 joints (6 active + 5 passive), linkage drive transmission, <0.008" (<0.20 mm) repeat positioning accuracy, ultra-lightweight 0.82 lb (370 g) construction, 110.2 lb (50 kg) max load capacity, and integrated tactile sensing. The hand includes an integrated RGB camera for visual feedback. Each arm joint utilizes dual encoders for precise feedback. Supports flexible mounting (upright, side, inverted) and offers high-speed 485 communication for the arm.
13-DOF Complete System
7 arm joints plus 6 dexterous hand DOF (6 active + 5 passive joints) deliver a fully integrated five-finger manipulation solution. Linker Hand O6 Tactile with RGB camera included.
Linker Hand O6 Tactile
Five-finger dexterous hand with 6 DOF, 11 joints, linkage drive, 0.82 lb (370 g) weight, 110.2 lb (50 kg) max load, <0.008" accuracy, and tactile sensing.
Integrated Tactile Sensing
Tactile sensors across the hand surface enable direct contact force measurement, slip detection, texture recognition, and adaptive grip control for intelligent manipulation.
44.3 lb·ft (60 N·m) Torque
7 independent joints driven by low-inertia high-speed inner-rotor PMSM bionic joint motors. High burst output enables robust manipulation and dynamic humanoid tasks.
Dual Encoder Per Joint
Each of the 7 arm motors is equipped with a dual encoder system for redundant, high-resolution position feedback and reliable closed-loop control.
High-Speed 485 Communication
High-speed 485 communication protocol for the arm. Robust, noise-resistant protocol suitable for humanoid robot integration and industrial environments.
Linker Hand O6 Tactile Five-Finger Dexterous Hand
The R1-7a Professional H comes equipped with the Linker Hand O6 Tactile five-finger dexterous hand, providing advanced human-like manipulation capability with integrated tactile and visual feedback:
Linker Hand O6 Tactile -- Standard Equipment
- Type: Five-finger dexterous hand (tactile, with RGB camera).
- DOF: 6 active degrees of freedom distributed across the five-finger architecture.
- Joints: 11 total joints (6 active + 5 passive) enabling complex finger articulation and human-like grasping patterns.
- Transmission: Linkage drive -- efficient mechanical force transmission for high load capacity and reliable operation.
- Weight: 0.82 lb (370 g) -- ultra-lightweight design minimizes arm payload requirements.
- Max Load: 110.2 lb (50 kg) -- exceptional load capacity for a dexterous hand of this size.
- Repeat Positioning Accuracy: <0.008" (<0.20 mm) -- high-precision repeatability for consistent manipulation performance.
- Tactile Sensing: Integrated tactile sensors for direct contact force measurement and adaptive grip control.
- RGB Camera: Integrated camera for on-hand visual feedback during manipulation tasks.
Integrated Tactile Sensing
The Linker Hand O6 Tactile dexterous hand features integrated tactile sensors, providing direct contact force feedback across the hand surface:
Tactile Sensing -- Integrated in Dexterous Hand
- Direct Force Measurement: Unlike non-tactile variants that rely on motor current estimation, tactile sensors provide direct, accurate contact force readings at the point of interaction.
- Slip Detection: Real-time tactile feedback enables slip detection and automatic grip adjustment to prevent object dropping during manipulation.
- Texture Recognition: Tactile sensor array supports surface texture analysis for material identification and quality inspection applications.
- Adaptive Grip Control: Force feedback enables closed-loop grip control, adjusting pressure based on object fragility and surface properties for safe handling.
- Contact Localization: Distributed tactile sensors identify contact location and pressure distribution for intelligent manipulation planning.
- Enhanced Safety: Tactile feedback enables safe human-robot interaction by detecting unexpected contact and triggering appropriate responses.
Fingertip Force Specifications
The Linker Hand O6 provides specific force ratings for different grasping configurations:
Fingertip & Grip Force Ratings
- Max Fingertip Force (Thumb): 4.5 lbf (20 N) -- precise force control for thumb-based manipulation and precision pinching.
- Max Fingertip Force (Four Fingers): 5.6 lbf (25 N) per finger -- consistent force delivery across index, middle, ring, and pinky fingers.
- Max Grip Force (Five Fingers): 15.7 lbf (70 N) -- combined five-finger grip force for secure power grasping of heavy objects.
- Force Distribution: Optimized force distribution across all five fingers enables adaptive grasping for various object shapes and sizes.
- Linkage Drive Efficiency: Mechanical linkage transmission ensures efficient force delivery from actuators to fingertips with minimal energy loss.
Integrated RGB Camera
The Linker Hand O6 Tactile dexterous hand features an integrated RGB camera, providing critical visual feedback directly at the point of manipulation:
RGB Camera -- Integrated in Dexterous Hand
- On-Hand Vision: Camera positioned at the dexterous hand provides first-person view of the manipulation workspace, enabling precise object identification and positioning.
- Object Recognition: RGB imagery supports real-time object classification, color detection, and feature identification during manipulation tasks.
- Visual Servoing: Close-proximity camera enables visual feedback control loops for precision grasping, alignment, and placement operations.
- Quality Inspection: High-resolution imagery supports in-process quality checks, defect detection, and verification of manipulation outcomes.
- SDK Integration: Full SDK support for camera control, image processing, and integration with arm control systems for coordinated vision-manipulation workflows.
- Reduced External Dependencies: Integrated camera eliminates the need for separate external vision systems in many applications, simplifying setup and reducing cost.
Five-Finger Architecture
The Linker Hand O6 features a five-finger architecture with 6 active DOF and 5 passive joints across 11 total joints, enabling human-like dexterity and versatile grasping patterns:
Thumb
Opposable thumb design enables precision pinch grasps, power grasps, and complex in-hand manipulation. Critical for human-like dexterity.
Index Finger
Independent articulation for pointing, trigger-style manipulation, and fine tactile exploration. Supports precision and power grasp modes.
Middle Finger
Central finger provides stability and force distribution during object manipulation. Key contributor to power grasp envelope.
Ring Finger
Supports power grasp completion and lateral stabilization. Works in coordination with pinky for secure wrapping of large objects.
Pinky Finger
Completes the five-finger architecture for adaptive grasping and in-hand manipulation of complex objects. Enhances grasp security.
11 Joints (6 Active + 5 Passive)
11 joints distributed across five fingers with 6 active and 5 passive degrees of freedom. Linkage drive enables coordinated finger movement.
Left/Right Arm Mirror Configuration
The R1-7a Professional H is available in left-arm and right-arm versions, specifically designed for bimanual humanoid robot integration:
Left-Arm & Right-Arm Mirror Versions
- Mirror-Image Design: Left and right arms are precise mirror images of each other, enabling symmetrical bimanual manipulation for humanoid robot applications.
- Default Right-Arm SKU: For single-arm applications, the default configuration is the right-arm SKU. Specify left-arm when required for your application.
- Bimanual Integration: Designed for seamless integration with the Unitree R1 humanoid robot platform, supporting coordinated dual-arm manipulation tasks.
- Selection Guidance: When left/right distinction is required, select per actual needs. Both versions share identical technical specifications and performance characteristics.
Control System & Interfaces
The R1-7a Professional H provides comprehensive real-time control and flexible integration options for humanoid robot applications:
Arm Communication Protocol
High-speed 485 communication interface for the arm. Robust, noise-resistant protocol suitable for humanoid robot integration and industrial environments.
Total DOF
13 DOF (7 arm joints + 6 dexterous hand DOF across 11 joints: 6 active + 5 passive). Coordinated control of arm and hand through unified communication interfaces.
Control Methods
SDK and host computer control for seamless integration with humanoid robot control systems and research platforms.
Operating Temperature
Wide operating range of -4°F to 122°F (-20°C to 50°C). Ensures reliable performance in diverse environmental conditions.
What's Included (Per Arm)
Each R1-7a Professional H Robotic Arm package contains the following components:
| Arm | R1-7a Robotic Arm Unit | Complete 7-DOF robotic arm assembly with low-inertia high-speed inner-rotor PMSM motors, dual encoders, and industrial crossed-roller bearings. Specify left or right arm version. |
| Hand | Linker Hand O6 Tactile Five-Finger Hand with RGB Camera (x1) | Standard equipment -- Linker Hand O6 five-finger dexterous hand (tactile) with 6 DOF, 11 joints (6 active + 5 passive), linkage drive, 0.82 lb (370 g) weight, 110.2 lb (50 kg) max load, <0.008" (<0.20 mm) accuracy, integrated tactile sensing, and RGB camera. |
| Accessory Kit | Power & Data Module Kit (x1) | Power and data module accessory kit for integration with humanoid robot systems. Power must be supplied by user via XT30 port. |
| Documentation | Development Documentation | Comprehensive development documentation, SDK reference, API documentation, and ecosystem support materials. |
Important Notes
- Left/Right arm selection: The R1-7a comes in left-arm and right-arm versions (mirror images). For single-arm applications, default is right-arm SKU. Specify left-arm when required.
- Linker Hand O6 Tactile: Five-finger dexterous hand (tactile) with 6 DOF, 11 joints (6 active + 5 passive), linkage drive, 0.82 lb (370 g) weight, 110.2 lb (50 kg) max load, and <0.008" (<0.20 mm) repeat positioning accuracy. Includes integrated tactile sensing.
- RGB camera included: The Linker Hand O6 Tactile includes an integrated RGB camera for on-hand visual feedback.
- Power adapter NOT included: Power must be supplied by user via XT30 port (24V-60V). Ensure your power supply can handle the 700W peak load.
- Hand specifications: Linker Hand O6 Tactile -- 6 DOF, 11 joints (6 active + 5 passive), linkage drive, 0.82 lb (370 g), 110.2 lb (50 kg) max load, <0.008" (<0.20 mm) accuracy.
- Force ratings: Thumb: 4.5 lbf (20 N); Four fingers: 5.6 lbf (25 N) each; Five-finger grip: 15.7 lbf (70 N).
- Communication interfaces: Arm uses high-speed 485. Ensure compatibility with your humanoid robot communication system.
- Technical support: Excellent technical support and comprehensive development documentation provided. Full ecosystem support for humanoid robot integration.
- 12-month warranty: 12-month warranty on the entire unit. Warranty covers manufacturing defects and normal operational use.
Technical Specifications
| Product Name | R1-7a Professional H Robotic Arm |
| Product Series | Unitree R1 Humanoid Robot Arm |
| Arm Version | Left-arm or Right-arm (mirror images, default right-arm for single-arm applications) |
| Total Degrees of Freedom | 13 (7 arm joints + 6 dexterous hand DOF) |
| Arm Joint Motors | Low-inertia high-speed inner-rotor PMSM; bionic joint motor with high torque and high burst output |
| Max Joint Torque | 44.3 lb·ft (60 N·m) |
| Joint Feedback | Dual encoders |
| Hand Model | Linker Hand O6 five-finger dexterous hand (tactile, with RGB camera) |
| Hand DOF | 6 active |
| Hand Joints | 11 (6 active + 5 passive) |
| Transmission | Linkage drive |
| Hand Weight | 0.82 lb (370 g) |
| Max Load | 110.2 lb (50 kg) |
| Repeat Positioning Accuracy | <0.008" (<0.20 mm) |
| Tactile Sensing | Integrated tactile sensors (Tactile variant) |
| Max Fingertip Force (Thumb) | 4.5 lbf (20 N) |
| Max Fingertip Force (Four Fingers) | 5.6 lbf (25 N) per finger |
| Max Grip Force (Five Fingers) | 15.7 lbf (70 N) |
| RGB Camera | Integrated in Linker Hand O6 Tactile Dexterous Hand |
| Arm Communication Protocol | High-speed 485 |
| Mounting Options | Upright, side, inverted |
| Supply Voltage | 24 V to 60 V DC |
| Power Consumption | Peak power 700 W; typical power ≤ 50 W |
| Operating Temperature | -4°F to 122°F (-20°C to 50°C) |
| Accessory Kit | Power & data module accessory kit x1 included |
| Warranty | 12-month warranty on the entire unit |
* Specifications are based on manufacturer data and may vary slightly by production batch.
* The R1-7a Professional H includes all features of the R1-7a Standard arm plus the Linker Hand O6 five-finger dexterous hand (tactile, with RGB camera).
* Left/right arm versions available (mirror images). Default is right-arm SKU for single-arm applications.
* RGB camera and tactile sensing are integrated in the Linker Hand O6 Tactile dexterous hand for on-hand visual and force feedback.
* Power adapter NOT included. Power must be supplied by user via XT30 port (24V-60V). Peak power: 700W.
* Hand specifications: 6 DOF, 11 joints (6 active + 5 passive), linkage drive, 0.82 lb (370 g) weight, 110.2 lb (50 kg) max load, <0.008" (<0.20 mm) repeat positioning accuracy.
* Force ratings: Thumb 4.5 lbf (20 N); Four fingers 5.6 lbf (25 N) each; Five-finger grip 15.7 lbf (70 N).
* Secondary development requires advanced programming skills and familiarity with multi-DOF robotics control.
* Unitree is a registered trademark of Unitree Robotics. Linker is a trademark of Linker Robotics.
Unitree
by
Unitree
Unitree R1-7a Professional H Robotic Arm
SKU:
R1-7A-PROFESSIONAL-H-ARM
- Regular price
- $4,049.00
- Sale price
- $4,049.00
- Regular price
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Providing the best new Tech Experience, Energy Independence and Robotics Ways of Optimisation
Providing the best new Tech Experience, Energy Independence and Robotics Ways of Optimisation
Packaging note:
Equipment is being supplied in a manufacturer packaging
Price history
Average price history
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$4,049
Averages are computed per UTC day from every recorded offer price.
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