Daily average price
Amounts in USD
Official 7-DOF collaborative robotic arm designed for the Unitree R1 humanoid robot platform. The R1-7a Standard features 7 degrees of freedom driven by low-inertia, high-speed inner-rotor PMSM bionic joint motors with high torque and high burst output, delivering a maximum joint torque of 44.3 lb·ft (60 N·m). Housed in a lightweight 12.1 lb (5.5 kg) metal body with engineering plastic components, it supports a 4.4 lb (2 kg) rated payload (up to 8.8 lb (4 kg) maximum load) and features industrial crossed-roller bearings. Each joint utilizes dual encoders for precise feedback. Supports flexible mounting (upright, side, inverted) and offers CAN/485 communication. Available in left-arm and right-arm mirror-image versions.
The Unitree R1-7a Standard Robotic Arm is a high-performance 7-DOF collaborative robotic arm specifically designed for the Unitree R1 humanoid robot platform. With 7 degrees of freedom and a maximum joint torque of 44.3 lb·ft (60 N·m), the R1-7a achieves human-like dexterity and robust load handling. Constructed with a metal body and engineering plastic components, it features industrial crossed-roller bearings and low-inertia, high-speed inner-rotor PMSM bionic joint motors with high torque and high burst output, ensuring high precision, fast response, and excellent heat dissipation in a lightweight 12.1 lb (5.5 kg) package.
The R1-7a features an extended arm length of 18.5" (470 mm) with a working radius of 25.6" (650 mm) when equipped with a dexterous hand. The unique 180° elbow fold design enables compact storage and flexible workspace configuration. Each joint utilizes dual encoders for precise position feedback. Integrated with CAN/485 communication and SDK/host computer control, it supports flexible mounting in upright, side, or inverted orientations. Operating temperature range of -4°F to 122°F (-20°C to 50°C) ensures reliable performance in diverse environments.
7 independent joints driven by low-inertia, high-speed inner-rotor PMSM bionic joint motors. Maximum joint torque of 44.3 lb·ft (60 N·m) with high burst output enables robust manipulation and dynamic humanoid tasks.
Each of the 7 motors is equipped with a dual encoder system for redundant, high-resolution position feedback. Ensures precise trajectory tracking and reliable closed-loop control.
Extended arm length of 18.5" (470 mm) with working radius of 25.6" (650 mm) when equipped with a dexterous hand. Enables wide workspace coverage for humanoid manipulation tasks.
Unique elbow design folds 180°, enabling compact storage and flexible workspace configuration. Ideal for humanoid robot integration and space-constrained environments.
Supports upright, side, and inverted mounting configurations. Adapts to various humanoid robot body configurations and workspace requirements.
CAN/485 communication interface with SDK/host computer control. Robust, noise-resistant communication suitable for humanoid robot integration and industrial applications.
The R1-7a Robotic Arm is available in left-arm and right-arm versions, specifically designed for bimanual humanoid robot integration:
The R1-7a Arm distributes 7 degrees of freedom across its joints with an ultra-wide motion range optimized for humanoid robot manipulation:
The R1-7a features advanced motor and bearing technology optimized for humanoid robot applications:
The R1-7a Arm provides comprehensive real-time control and flexible integration options for humanoid robot applications:
Supports SDK and host computer control for seamless integration with humanoid robot control systems and research platforms.
CAN/485 communication interface. Robust, noise-resistant protocol suitable for humanoid robot integration and industrial environments.
XT30 power port x1 and CAN/485 x1 (CAN port requires an adapter board). Provides versatile connectivity for power and data integration.
Wide operating range of -4°F to 122°F (-20°C to 50°C). Ensures reliable performance in diverse environmental conditions.
The R1-7a Arm offers efficient power management optimized for humanoid robot integration:
Wide operating range of 24 V to 60 V DC. Ensures compatibility with standard humanoid robot power buses and mobile platforms.
Peak power 700 W; typical power ≤ 50 W. Highly efficient power management for extended humanoid robot operation.
External power supply required. Power must be supplied by user via XT30 port. Power adapter NOT included.
Comes with power & data module accessory kit x1 for immediate integration with humanoid robot power and communication systems.
Each R1-7a Standard 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. |
| Accessory Kit | Power & Data Module Kit (x1) | Power and data module accessory kit for integration with humanoid robot systems. Power must be supplied by the user via the XT30 port. |
| Documentation | Development Documentation | Comprehensive development documentation, SDK reference, API documentation, and ecosystem support materials. |
| Product Name | R1-7a Standard 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) |
| Net Weight | 12.1 lb (5.5 kg) |
| Material | Metal body + engineering plastic |
| Extended Arm Length | 18.5" (470 mm) |
| Working Radius (with dexterous hand) | 25.6" (650 mm) |
| Total Degrees of Freedom | 7 (joint motors) |
| Joint Output Bearing | Industrial crossed-roller bearing (high precision, high load capacity) |
| Joint Motor | 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 |
| Rated Payload | 4.4 lb (2 kg) |
| Max Payload | 8.8 lb (4 kg) |
| Elbow Fold | 180° |
| Mounting Options | Upright, side, inverted |
| Supply Voltage | 24 V to 60 V DC |
| Power Consumption | Peak power 700 W; typical power ≤ 50 W |
| Power Supply | External (power adapter NOT included) |
| Communication | CAN/485 |
| External Interfaces | XT30 power port x1; CAN/485 x1 (CAN port requires adapter board) |
| Control Methods | SDK / host computer |
| Operating Temperature | -4°F to 122°F (-20°C to 50°C) |
| Accessory Kit | Power & data module accessory kit x1 included |
| Technical Support | Excellent technical support; comprehensive development documentation and ecosystem support |
| Warranty | 12-month warranty on the entire unit |
* Specifications are based on manufacturer data and may vary slightly by production batch.
* The R1-7a comes in left-arm and right-arm versions (mirror images). The default is the right-arm SKU for single-arm applications.
* Power adapter NOT included. Power must be supplied by user via XT30 port (24V-60V). Peak power: 700W. Ensure adequate power supply capacity.
* CAN port requires an adapter board for CAN/485 communication.
* Rated payload: 4.4 lb (2 kg). Maximum payload: 8.8 lb (4 kg). Ensure operational loads do not exceed maximum limits.
* Operating temperature: -4°F to 122°F (-20°C to 50°C).
* Comes with power & data module accessory kit x1.
* Secondary development requires advanced programming skills and familiarity with multi-DOF robotics control and CAN/485 communication.
* Unitree is a registered trademark of Unitree Robotics.
Official 7-DOF collaborative robotic arm designed for the Unitree R1 humanoid robot platform. The R1-7a Standard features 7 degrees of freedom driven by low-inertia, high-speed inner-rotor PMSM bionic joint motors with high torque and high burst output, delivering a maximum joint torque of 44.3 lb·ft (60 N·m). Housed in a lightweight 12.1 lb (5.5 kg) metal body with engineering plastic components, it supports a 4.4 lb (2 kg) rated payload (up to 8.8 lb (4 kg) maximum load) and features industrial crossed-roller bearings. Each joint utilizes dual encoders for precise feedback. Supports flexible mounting (upright, side, inverted) and offers CAN/485 communication. Available in left-arm and right-arm mirror-image versions.
The Unitree R1-7a Standard Robotic Arm is a high-performance 7-DOF collaborative robotic arm specifically designed for the Unitree R1 humanoid robot platform. With 7 degrees of freedom and a maximum joint torque of 44.3 lb·ft (60 N·m), the R1-7a achieves human-like dexterity and robust load handling. Constructed with a metal body and engineering plastic components, it features industrial crossed-roller bearings and low-inertia, high-speed inner-rotor PMSM bionic joint motors with high torque and high burst output, ensuring high precision, fast response, and excellent heat dissipation in a lightweight 12.1 lb (5.5 kg) package.
The R1-7a features an extended arm length of 18.5" (470 mm) with a working radius of 25.6" (650 mm) when equipped with a dexterous hand. The unique 180° elbow fold design enables compact storage and flexible workspace configuration. Each joint utilizes dual encoders for precise position feedback. Integrated with CAN/485 communication and SDK/host computer control, it supports flexible mounting in upright, side, or inverted orientations. Operating temperature range of -4°F to 122°F (-20°C to 50°C) ensures reliable performance in diverse environments.
7 independent joints driven by low-inertia, high-speed inner-rotor PMSM bionic joint motors. Maximum joint torque of 44.3 lb·ft (60 N·m) with high burst output enables robust manipulation and dynamic humanoid tasks.
Each of the 7 motors is equipped with a dual encoder system for redundant, high-resolution position feedback. Ensures precise trajectory tracking and reliable closed-loop control.
Extended arm length of 18.5" (470 mm) with working radius of 25.6" (650 mm) when equipped with a dexterous hand. Enables wide workspace coverage for humanoid manipulation tasks.
Unique elbow design folds 180°, enabling compact storage and flexible workspace configuration. Ideal for humanoid robot integration and space-constrained environments.
Supports upright, side, and inverted mounting configurations. Adapts to various humanoid robot body configurations and workspace requirements.
CAN/485 communication interface with SDK/host computer control. Robust, noise-resistant communication suitable for humanoid robot integration and industrial applications.
The R1-7a Robotic Arm is available in left-arm and right-arm versions, specifically designed for bimanual humanoid robot integration:
The R1-7a Arm distributes 7 degrees of freedom across its joints with an ultra-wide motion range optimized for humanoid robot manipulation:
The R1-7a features advanced motor and bearing technology optimized for humanoid robot applications:
The R1-7a Arm provides comprehensive real-time control and flexible integration options for humanoid robot applications:
Supports SDK and host computer control for seamless integration with humanoid robot control systems and research platforms.
CAN/485 communication interface. Robust, noise-resistant protocol suitable for humanoid robot integration and industrial environments.
XT30 power port x1 and CAN/485 x1 (CAN port requires an adapter board). Provides versatile connectivity for power and data integration.
Wide operating range of -4°F to 122°F (-20°C to 50°C). Ensures reliable performance in diverse environmental conditions.
The R1-7a Arm offers efficient power management optimized for humanoid robot integration:
Wide operating range of 24 V to 60 V DC. Ensures compatibility with standard humanoid robot power buses and mobile platforms.
Peak power 700 W; typical power ≤ 50 W. Highly efficient power management for extended humanoid robot operation.
External power supply required. Power must be supplied by user via XT30 port. Power adapter NOT included.
Comes with power & data module accessory kit x1 for immediate integration with humanoid robot power and communication systems.
Each R1-7a Standard 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. |
| Accessory Kit | Power & Data Module Kit (x1) | Power and data module accessory kit for integration with humanoid robot systems. Power must be supplied by the user via the XT30 port. |
| Documentation | Development Documentation | Comprehensive development documentation, SDK reference, API documentation, and ecosystem support materials. |
| Product Name | R1-7a Standard 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) |
| Net Weight | 12.1 lb (5.5 kg) |
| Material | Metal body + engineering plastic |
| Extended Arm Length | 18.5" (470 mm) |
| Working Radius (with dexterous hand) | 25.6" (650 mm) |
| Total Degrees of Freedom | 7 (joint motors) |
| Joint Output Bearing | Industrial crossed-roller bearing (high precision, high load capacity) |
| Joint Motor | 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 |
| Rated Payload | 4.4 lb (2 kg) |
| Max Payload | 8.8 lb (4 kg) |
| Elbow Fold | 180° |
| Mounting Options | Upright, side, inverted |
| Supply Voltage | 24 V to 60 V DC |
| Power Consumption | Peak power 700 W; typical power ≤ 50 W |
| Power Supply | External (power adapter NOT included) |
| Communication | CAN/485 |
| External Interfaces | XT30 power port x1; CAN/485 x1 (CAN port requires adapter board) |
| Control Methods | SDK / host computer |
| Operating Temperature | -4°F to 122°F (-20°C to 50°C) |
| Accessory Kit | Power & data module accessory kit x1 included |
| Technical Support | Excellent technical support; comprehensive development documentation and ecosystem support |
| Warranty | 12-month warranty on the entire unit |
* Specifications are based on manufacturer data and may vary slightly by production batch.
* The R1-7a comes in left-arm and right-arm versions (mirror images). The default is the right-arm SKU for single-arm applications.
* Power adapter NOT included. Power must be supplied by user via XT30 port (24V-60V). Peak power: 700W. Ensure adequate power supply capacity.
* CAN port requires an adapter board for CAN/485 communication.
* Rated payload: 4.4 lb (2 kg). Maximum payload: 8.8 lb (4 kg). Ensure operational loads do not exceed maximum limits.
* Operating temperature: -4°F to 122°F (-20°C to 50°C).
* Comes with power & data module accessory kit x1.
* Secondary development requires advanced programming skills and familiarity with multi-DOF robotics control and CAN/485 communication.
* Unitree is a registered trademark of Unitree Robotics.
Price history
One data point per day, averaged by observation date.
Amounts in USD
Averages are computed per UTC day from every recorded offer price.

Unitree · Austin, US
$2,409

Unitree · Hangzhou, CN
from $1,650

Unitree · Barcelona, ES
$2,100

Unitree · Austin, US
$2,639

Unitree · Austin, US
$2,839

Unitree · Austin, US
$2,789

Unitree · Barcelona, ES
$2,925

Unitree · Austin, US
$2,989

Unitree · Bordeaux, FR
1,497.60 €

Unitree · Barcelona, ES
$1,240

Unitree · Barcelona, ES
$1,250

Unitree · Barcelona, ES
$1,200
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