About
Description
Unitree Robotics -- Official Robotic Arm
Unitree R1-7a As2 Standard Robotic Arm
R1 Series
7 DOF
As2 Quadruped Ready
No RGB Camera
Left/Right Versions
Official 7-DOF bionic robotic arm specifically configured for seamless integration with the Unitree As2 industrial quadruped robot. The R1-7a As2 Standard combines the high-dexterity manipulation of the R1-7a arm with the dynamic mobility of the As2 platform. Featuring 7 degrees of freedom driven by low-inertia high-speed inner-rotor PMSM motors delivering 44.3 lb·ft (60 N·m) max joint torque, housed in a lightweight 12.1 lb (5.5 kg) metal and engineering plastic body. Includes specialized mounting hardware for the As2 backplate, industrial crossed-roller bearings, dual encoders, and CAN/485 communication. Available in left-arm and right-arm mirror-image versions. No RGB camera included.
7
Active DOF
44.3 lb·ft
Max Torque
12.1 lb
Arm Weight
As2
Quadruped Mount
18.5"
Arm Length
12 mo
Warranty
As2 Standard vs. Standard: The R1-7a As2 Standard includes all core features of the R1-7a Standard arm, but is specifically packaged and configured with the specialized mounting interface and hardware required for direct, stable integration onto the backplate of the Unitree As2 quadruped robot.
No RGB Camera: This model does not include an integrated RGB camera. Visual perception for mobile manipulation tasks must be implemented through the As2 robot's existing vision system or external sensors.
Product Overview
The Unitree R1-7a As2 Standard Robotic Arm is a complete mobile manipulation solution designed to transform the Unitree As2 industrial quadruped into a highly capable, mobile robotic worker. Building on the proven R1-7a platform with its 7 degrees of freedom and 44.3 lb·ft (60 N·m) maximum joint torque, the As2 Standard variant is optimized for dynamic, on-the-move operation.
The arm features low-inertia high-speed inner-rotor PMSM bionic joint motors with high burst output, housed in a lightweight 12.1 lb (5.5 kg) metal body with engineering plastic components to minimize the payload impact on the quadruped's dynamic balance. The package includes the specialized As2 mounting interface and hardware for secure, vibration-resistant attachment to the robot dog's back. Constructed with industrial crossed-roller bearings and featuring dual encoders per joint for precise feedback even during locomotion. Supports flexible end-effector attachment and offers robust CAN/485 communication for seamless integration with the As2's control architecture.
7 DOF & 44.3 lb·ft (60 N·m) Torque
7 independent joints driven by low-inertia high-speed inner-rotor PMSM motors. High burst output enables robust manipulation and dynamic tasks while the quadruped is in motion.
As2 Quadruped Integration
Comes with specialized mounting hardware and interface designed specifically for the Unitree As2 backplate. Ensures stable, vibration-dampened attachment during locomotion.
Lightweight Design (12.1 lb / 5.5 kg)
Optimized metal and engineering plastic construction minimizes weight, preserving the As2 robot's agility, speed, and battery endurance while carrying the arm.
Dual Encoder Per Joint
Each of the 7 motors is equipped with a dual encoder system for redundant, high-resolution position feedback, ensuring precise trajectory tracking even on uneven terrain.
18.5" Arm Length
Extended arm length of 18.5" (470 mm) with a working radius of 25.6" (650 mm) when equipped with a dexterous hand, maximizing the mobile workspace.
CAN/485 Communication
Robust CAN/485 communication interface with SDK/host computer control. Noise-resistant protocol ideal for the electrically complex environment of a mobile quadruped.
Unitree As2 Quadruped Integration
The R1-7a As2 Standard is engineered for seamless synergy with the Unitree As2 industrial robot dog:
Mobile Manipulation Ready
- Specialized Mounting Interface: Precision-machined mounting pattern ensures perfect, rigid alignment with the As2 robot's backplate, eliminating play during dynamic movement.
- Vibration Resistance: Mounting hardware and arm joint bearings are selected to withstand the vibrations and shocks inherent in quadruped locomotion over rough terrain.
- Weight Optimization: At 12.1 lb (5.5 kg), the arm is lightweight enough to allow the As2 to maintain its high speed (>5 m/s) and significant payload capacity (up to 33 lb / 15 kg continuous walking load).
- Unified Power & Data: Designed to integrate cleanly with the As2's power bus and communication network, simplifying cabling and system architecture.
- Mobile Inspection & Interaction: Transforms the As2 from a pure mobility platform into a versatile mobile manipulator capable of opening doors, pressing buttons, and retrieving objects in industrial environments.
Left/Right Arm Mirror Configuration
The R1-7a As2 Standard is available in left-arm and right-arm versions, allowing for flexible single-arm or dual-arm mobile manipulation setups on the quadruped:
Left-Arm & Right-Arm Mirror Versions
- Mirror-Image Design: Left and right arms are precise mirror images, enabling symmetrical bimanual manipulation if two arms are mounted on a custom As2 rig.
- Default Right-Arm SKU: For single-arm mobile manipulation applications, the default configuration is the right-arm SKU. Specify left-arm when required.
- Selection Guidance: When left/right distinction is required, select per actual needs. Both versions share identical technical specifications and performance characteristics.
Ultra-Wide Joint Motion Range
The R1-7a As2 Standard Arm distributes 7 degrees of freedom across its joints with an ultra-wide motion range optimized for mobile manipulation:
- J1 Joint: -156° to 156° | Peak torque 44.3 lb·ft (60 N·m). Provides the primary base rotation for wide workspace coverage from the quadruped's back.
- J2 Joint: 0° to 180° | Peak torque 44.3 lb·ft (60 N·m). Delivers powerful shoulder movement for reaching down to the ground or up to high surfaces.
- J3 Joint: -20° to 200° | Peak torque 44.3 lb·ft (60 N·m). Ultra-wide range enables deep reach and complex spatial positioning around the robot's body.
- J4 Joint: 0° to 180° | Peak torque 44.3 lb·ft (60 N·m). High-speed rotation for rapid orientation changes.
- J5 Joint: -130° to 130° | Peak torque 44.3 lb·ft (60 N·m). Provides precise pitch control for end-effector alignment.
- J6 Joint: -30° to 30° | Peak torque 44.3 lb·ft (60 N·m). Fine-tuned roll adjustment for delicate manipulation tasks.
- J7 Joint: -90° to 90° | Peak torque 44.3 lb·ft (60 N·m). Final joint orientation for exact tool or gripper positioning.
Control System & Interfaces
The R1-7a As2 Standard Arm provides comprehensive real-time control and flexible integration options for mobile robotics applications:
Control Methods
Supports SDK and host computer control for seamless integration with the Unitree As2's onboard compute and research platforms.
Communication Protocol
CAN/485 communication interface. Robust, noise-resistant protocol highly suitable for the electrically noisy environment of a mobile quadruped.
External Interfaces
XT30 power port x1 and CAN/485 x1 (CAN port requires adapter board). Provides versatile connectivity for power and data integration with the As2.
Operating Temperature
Wide operating range of -4°F to 122°F (-20°C to 50°C). Ensures reliable performance in diverse outdoor and industrial environments.
Power & Consumption
The R1-7a As2 Standard Arm offers efficient power management optimized for mobile quadruped integration:
Supply Voltage
Wide operating range of 24 V to 60 V DC. Ensures direct compatibility with the Unitree As2's standard robot power bus.
Power Consumption
Peak power 700 W; typical power ≤ 50 W. Highly efficient power management to preserve the quadruped's battery endurance during mobile manipulation.
External Power Supply
Power is drawn from the host system via the XT30 port. Dedicated arm power adapter is NOT included or required when mounted to the As2.
Power & Data Module Kit
Comes with power & data module accessory kit x1 for immediate, clean integration with the quadruped's power and communication systems.
What's Included (Per Arm)
Each R1-7a As2 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. |
| Mounting Kit | As2 Quadruped Mounting Interface | Specialized mounting hardware and interface plate designed specifically for secure attachment to the Unitree As2 robot dog backplate. |
| Accessory Kit | Power & Data Module Kit (x1) | Power and data module accessory kit for clean integration with the As2's onboard systems. |
| Documentation | Development Documentation | Comprehensive development documentation, SDK reference, API documentation, and As2 integration guidelines. |
Important Notes
- Left/Right arm selection: The R1-7a comes in left-arm and right-arm versions (mirror images). For single-arm mobile applications, default is right-arm SKU. Specify left-arm when required.
- As2 Integration: This package is specifically configured for mounting on the Unitree As2 quadruped robot. Ensure your host platform is compatible.
- No RGB camera: This model does not include an RGB camera. Visual perception must be implemented through the As2 robot's existing vision system or external sensors.
- Power integration: Power is supplied via the XT30 port from the host quadruped's power bus (24V-60V). Ensure the As2 power system can handle the 700W peak load during dynamic manipulation.
- CAN port adapter board: CAN/485 communication requires an adapter board for the CAN port. Ensure compatibility with your As2 communication architecture.
- Operating temperature: -4°F to 122°F (-20°C to 50°C). Ensures reliable performance in diverse outdoor and industrial environments.
- Technical support: Excellent technical support and comprehensive development documentation provided. Full ecosystem support for mobile quadruped 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 As2 Standard Robotic Arm |
| Product Series | Unitree R1 Humanoid Robot Arm (As2 Quadruped Configuration) |
| 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, vibration resistant) |
| 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 |
| Mounting Configuration | Specialized interface and hardware for Unitree As2 quadruped robot backplate |
| Supply Voltage | 24 V to 60 V DC |
| Power Consumption | Peak power 700 W; typical power ≤ 50 W |
| Power Supply | Drawn from host quadruped via XT30 port (dedicated 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 |
| RGB Camera | Not included |
| Operating Temperature | -4°F to 122°F (-20°C to 50°C) |
| Accessory Kit | Power & data module accessory kit x1 + As2 mounting hardware 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 As2 Standard includes all features of the R1-7a Standard arm plus specialized mounting hardware for the Unitree As2 quadruped robot.
* Left/right arm versions available (mirror images). Default is right-arm SKU for single-arm applications.
* No RGB camera included. Visual perception must be implemented through the As2 robot's existing vision system or external sensors.
* Power is drawn from the host quadruped via XT30 port (24V-60V). Peak power: 700W. Ensure the As2 power bus can handle dynamic peak loads.
* CAN port requires adapter board for CAN/485 communication.
* Operating temperature: -4°F to 122°F (-20°C to 50°C).
* Secondary development requires advanced programming skills and familiarity with multi-DOF robotics control, CAN/485 communication, and mobile quadruped integration.
* Unitree and As2 are registered trademarks of Unitree Robotics.
Description
Unitree Robotics -- Official Robotic Arm
Unitree R1-7a As2 Standard Robotic Arm
R1 Series
7 DOF
As2 Quadruped Ready
No RGB Camera
Left/Right Versions
Official 7-DOF bionic robotic arm specifically configured for seamless integration with the Unitree As2 industrial quadruped robot. The R1-7a As2 Standard combines the high-dexterity manipulation of the R1-7a arm with the dynamic mobility of the As2 platform. Featuring 7 degrees of freedom driven by low-inertia high-speed inner-rotor PMSM motors delivering 44.3 lb·ft (60 N·m) max joint torque, housed in a lightweight 12.1 lb (5.5 kg) metal and engineering plastic body. Includes specialized mounting hardware for the As2 backplate, industrial crossed-roller bearings, dual encoders, and CAN/485 communication. Available in left-arm and right-arm mirror-image versions. No RGB camera included.
7
Active DOF
44.3 lb·ft
Max Torque
12.1 lb
Arm Weight
As2
Quadruped Mount
18.5"
Arm Length
12 mo
Warranty
As2 Standard vs. Standard: The R1-7a As2 Standard includes all core features of the R1-7a Standard arm, but is specifically packaged and configured with the specialized mounting interface and hardware required for direct, stable integration onto the backplate of the Unitree As2 quadruped robot.
No RGB Camera: This model does not include an integrated RGB camera. Visual perception for mobile manipulation tasks must be implemented through the As2 robot's existing vision system or external sensors.
Product Overview
The Unitree R1-7a As2 Standard Robotic Arm is a complete mobile manipulation solution designed to transform the Unitree As2 industrial quadruped into a highly capable, mobile robotic worker. Building on the proven R1-7a platform with its 7 degrees of freedom and 44.3 lb·ft (60 N·m) maximum joint torque, the As2 Standard variant is optimized for dynamic, on-the-move operation.
The arm features low-inertia high-speed inner-rotor PMSM bionic joint motors with high burst output, housed in a lightweight 12.1 lb (5.5 kg) metal body with engineering plastic components to minimize the payload impact on the quadruped's dynamic balance. The package includes the specialized As2 mounting interface and hardware for secure, vibration-resistant attachment to the robot dog's back. Constructed with industrial crossed-roller bearings and featuring dual encoders per joint for precise feedback even during locomotion. Supports flexible end-effector attachment and offers robust CAN/485 communication for seamless integration with the As2's control architecture.
7 DOF & 44.3 lb·ft (60 N·m) Torque
7 independent joints driven by low-inertia high-speed inner-rotor PMSM motors. High burst output enables robust manipulation and dynamic tasks while the quadruped is in motion.
As2 Quadruped Integration
Comes with specialized mounting hardware and interface designed specifically for the Unitree As2 backplate. Ensures stable, vibration-dampened attachment during locomotion.
Lightweight Design (12.1 lb / 5.5 kg)
Optimized metal and engineering plastic construction minimizes weight, preserving the As2 robot's agility, speed, and battery endurance while carrying the arm.
Dual Encoder Per Joint
Each of the 7 motors is equipped with a dual encoder system for redundant, high-resolution position feedback, ensuring precise trajectory tracking even on uneven terrain.
18.5" Arm Length
Extended arm length of 18.5" (470 mm) with a working radius of 25.6" (650 mm) when equipped with a dexterous hand, maximizing the mobile workspace.
CAN/485 Communication
Robust CAN/485 communication interface with SDK/host computer control. Noise-resistant protocol ideal for the electrically complex environment of a mobile quadruped.
Unitree As2 Quadruped Integration
The R1-7a As2 Standard is engineered for seamless synergy with the Unitree As2 industrial robot dog:
Mobile Manipulation Ready
- Specialized Mounting Interface: Precision-machined mounting pattern ensures perfect, rigid alignment with the As2 robot's backplate, eliminating play during dynamic movement.
- Vibration Resistance: Mounting hardware and arm joint bearings are selected to withstand the vibrations and shocks inherent in quadruped locomotion over rough terrain.
- Weight Optimization: At 12.1 lb (5.5 kg), the arm is lightweight enough to allow the As2 to maintain its high speed (>5 m/s) and significant payload capacity (up to 33 lb / 15 kg continuous walking load).
- Unified Power & Data: Designed to integrate cleanly with the As2's power bus and communication network, simplifying cabling and system architecture.
- Mobile Inspection & Interaction: Transforms the As2 from a pure mobility platform into a versatile mobile manipulator capable of opening doors, pressing buttons, and retrieving objects in industrial environments.
Left/Right Arm Mirror Configuration
The R1-7a As2 Standard is available in left-arm and right-arm versions, allowing for flexible single-arm or dual-arm mobile manipulation setups on the quadruped:
Left-Arm & Right-Arm Mirror Versions
- Mirror-Image Design: Left and right arms are precise mirror images, enabling symmetrical bimanual manipulation if two arms are mounted on a custom As2 rig.
- Default Right-Arm SKU: For single-arm mobile manipulation applications, the default configuration is the right-arm SKU. Specify left-arm when required.
- Selection Guidance: When left/right distinction is required, select per actual needs. Both versions share identical technical specifications and performance characteristics.
Ultra-Wide Joint Motion Range
The R1-7a As2 Standard Arm distributes 7 degrees of freedom across its joints with an ultra-wide motion range optimized for mobile manipulation:
- J1 Joint: -156° to 156° | Peak torque 44.3 lb·ft (60 N·m). Provides the primary base rotation for wide workspace coverage from the quadruped's back.
- J2 Joint: 0° to 180° | Peak torque 44.3 lb·ft (60 N·m). Delivers powerful shoulder movement for reaching down to the ground or up to high surfaces.
- J3 Joint: -20° to 200° | Peak torque 44.3 lb·ft (60 N·m). Ultra-wide range enables deep reach and complex spatial positioning around the robot's body.
- J4 Joint: 0° to 180° | Peak torque 44.3 lb·ft (60 N·m). High-speed rotation for rapid orientation changes.
- J5 Joint: -130° to 130° | Peak torque 44.3 lb·ft (60 N·m). Provides precise pitch control for end-effector alignment.
- J6 Joint: -30° to 30° | Peak torque 44.3 lb·ft (60 N·m). Fine-tuned roll adjustment for delicate manipulation tasks.
- J7 Joint: -90° to 90° | Peak torque 44.3 lb·ft (60 N·m). Final joint orientation for exact tool or gripper positioning.
Control System & Interfaces
The R1-7a As2 Standard Arm provides comprehensive real-time control and flexible integration options for mobile robotics applications:
Control Methods
Supports SDK and host computer control for seamless integration with the Unitree As2's onboard compute and research platforms.
Communication Protocol
CAN/485 communication interface. Robust, noise-resistant protocol highly suitable for the electrically noisy environment of a mobile quadruped.
External Interfaces
XT30 power port x1 and CAN/485 x1 (CAN port requires adapter board). Provides versatile connectivity for power and data integration with the As2.
Operating Temperature
Wide operating range of -4°F to 122°F (-20°C to 50°C). Ensures reliable performance in diverse outdoor and industrial environments.
Power & Consumption
The R1-7a As2 Standard Arm offers efficient power management optimized for mobile quadruped integration:
Supply Voltage
Wide operating range of 24 V to 60 V DC. Ensures direct compatibility with the Unitree As2's standard robot power bus.
Power Consumption
Peak power 700 W; typical power ≤ 50 W. Highly efficient power management to preserve the quadruped's battery endurance during mobile manipulation.
External Power Supply
Power is drawn from the host system via the XT30 port. Dedicated arm power adapter is NOT included or required when mounted to the As2.
Power & Data Module Kit
Comes with power & data module accessory kit x1 for immediate, clean integration with the quadruped's power and communication systems.
What's Included (Per Arm)
Each R1-7a As2 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. |
| Mounting Kit | As2 Quadruped Mounting Interface | Specialized mounting hardware and interface plate designed specifically for secure attachment to the Unitree As2 robot dog backplate. |
| Accessory Kit | Power & Data Module Kit (x1) | Power and data module accessory kit for clean integration with the As2's onboard systems. |
| Documentation | Development Documentation | Comprehensive development documentation, SDK reference, API documentation, and As2 integration guidelines. |
Important Notes
- Left/Right arm selection: The R1-7a comes in left-arm and right-arm versions (mirror images). For single-arm mobile applications, default is right-arm SKU. Specify left-arm when required.
- As2 Integration: This package is specifically configured for mounting on the Unitree As2 quadruped robot. Ensure your host platform is compatible.
- No RGB camera: This model does not include an RGB camera. Visual perception must be implemented through the As2 robot's existing vision system or external sensors.
- Power integration: Power is supplied via the XT30 port from the host quadruped's power bus (24V-60V). Ensure the As2 power system can handle the 700W peak load during dynamic manipulation.
- CAN port adapter board: CAN/485 communication requires an adapter board for the CAN port. Ensure compatibility with your As2 communication architecture.
- Operating temperature: -4°F to 122°F (-20°C to 50°C). Ensures reliable performance in diverse outdoor and industrial environments.
- Technical support: Excellent technical support and comprehensive development documentation provided. Full ecosystem support for mobile quadruped 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 As2 Standard Robotic Arm |
| Product Series | Unitree R1 Humanoid Robot Arm (As2 Quadruped Configuration) |
| 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, vibration resistant) |
| 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 |
| Mounting Configuration | Specialized interface and hardware for Unitree As2 quadruped robot backplate |
| Supply Voltage | 24 V to 60 V DC |
| Power Consumption | Peak power 700 W; typical power ≤ 50 W |
| Power Supply | Drawn from host quadruped via XT30 port (dedicated 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 |
| RGB Camera | Not included |
| Operating Temperature | -4°F to 122°F (-20°C to 50°C) |
| Accessory Kit | Power & data module accessory kit x1 + As2 mounting hardware 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 As2 Standard includes all features of the R1-7a Standard arm plus specialized mounting hardware for the Unitree As2 quadruped robot.
* Left/right arm versions available (mirror images). Default is right-arm SKU for single-arm applications.
* No RGB camera included. Visual perception must be implemented through the As2 robot's existing vision system or external sensors.
* Power is drawn from the host quadruped via XT30 port (24V-60V). Peak power: 700W. Ensure the As2 power bus can handle dynamic peak loads.
* CAN port requires adapter board for CAN/485 communication.
* Operating temperature: -4°F to 122°F (-20°C to 50°C).
* Secondary development requires advanced programming skills and familiarity with multi-DOF robotics control, CAN/485 communication, and mobile quadruped integration.
* Unitree and As2 are registered trademarks of Unitree Robotics.
Unitree
by
Unitree
Unitree R1-7a As2 Standard Robotic Arm
SKU:
R1-7A-AS2-STANDARD-ARM
- Regular price
- $2,409.00
- Sale price
- $2,409.00
- Regular price
-
Shipping calculated at checkout.
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
