Robo-dog Unitree A2 Standard

Unitree A2 Robo-Dog for Logistics and Field Tasks

Unitree A2 is a new generation robo-dog designed for enterprises, R&D laboratories, and engineering teams. The model is developed for inspections, logistical tasks, and autonomous navigation in challenging field conditions. Thanks to its robust construction made of aluminum alloy and engineering plastic with an IP56 protection rating, the device operates stably both indoors and outdoors at temperatures from −20 °C to +55 °C. The robo-dog weighs 42 kg with batteries, has 12 joint PMSM motors with a peak torque of 180 Nm, and reaches speeds of up to 5 m/s. The model supports full secondary development based on the built-in Intel Core i7 computer and is equipped with a dual-slot power system providing up to 5 hours of autonomy.

Main Advantages of Unitree A2

• Working with load. Unitree A2 can carry up to 25 kg while walking, and the maximum static load in a standing position is about 100 kg. This allows for the installation of sensors, cameras, communication modules, computing units, data collection devices, or test equipment for industrial inspection and logistical routes.
• Hot-swappable dual batteries. The robot has two battery compartments, and one battery has a capacity of 9000 mAh, or 453.6 Wh. Two batteries provide a total of 1000 mAh, or 907.2 Wh, and the hot-swap support reduces pauses between work cycles.
• Long routes with and without load. Without a payload, the A2 operates for over 5 hours and covers approximately 20 km. With a 25 kg load, it is claimed to work for over 3 hours and cover a route of about 12.5 km, making the robot suitable for long tests in warehouses, production sites, and fields.
• LiDAR for spatial perception. The basic version of the A2 is equipped with one industrial LiDAR scanner, an HD camera, and front lighting. This configuration helps the robot read obstacles, collect data for mapping, navigate technical passages, and work indoors or in open areas.
• Mechanics for uneven surfaces. The robo-dog has 12 degrees of freedom, joint motors with a maximum torque of about 180 Nm, and industrial cross-roller bearings. Thanks to this, the platform can move up stairs up to 30 cm, slopes of about 45°, and routes where wheeled vehicles struggle to maintain passability.
• Protected body for field conditions. The body is made of aluminum alloy and high-strength engineering plastic. The A2 is rated IP56, which is important for protection against dust, splashes, moisture, and operation outside clean laboratory conditions.
• Interfaces for additional equipment. Unitree A2 has RS485 x2, CAN x2, Gigabit Ethernet x2, USB 3.0 Type-C x4, and power outputs of 12 V / 24 V / BAT. These ports can be used to connect external sensors, controllers, cameras, computing modules, and equipment for applied tests.
• Platform for secondary development. The standard configuration includes an 8-core platform processor and Intel Core i7 for user development. The robot supports OTA updates and secondary development, making it suitable for teams testing their own algorithms for autonomous navigation, mapping, and motion control.

Construction and Movement on Complex Surfaces

Unitree A2 is designed for fieldwork, carrying equipment, and moving along routes where a quadrupedal walking scheme is required. The dimensions of the robo-dog in a standing position are 820 × 440 × 570 mm, and in a folded position, 720 × 550 × 220 mm. The weight without the battery is about 35 kg, and the net weight with batteries is approximately 42 kg.

The mechanical part consists of 12 degrees of freedom and PMSM joint motors with an internal rotor. The maximum torque is about 180 Nm, the range of joint motion covers the body −58°…58°, thigh −134°…180° / −89°…225°, and shin −158°…−30°. The robo-dog moves at speeds of 0–3.7 m/s in certain modes up to 5 m/s, overcomes steps up to 30 cm, slopes of about 45°, and provides climbing heights of approximately 0.5–1 m depending on the scenario.

Navigation and Autonomous Operation

Unitree A2 is equipped with an industrial LiDAR, HD camera, and front light. This configuration is necessary for obstacle detection, spatial orientation, data collection for maps, and movement in areas with complex geometry: between equipment, shelves, technical passages, stairs, ramps, and open areas with uneven surfaces.

Autonomous navigation depends on settings, software stack, map quality, route type, and additional modules. The A2 can be used as an inspection robot, a platform for mapping, or a stand for testing autonomous movement algorithms. For more complex scenarios, GPS, 4G, and wireless vector tracking extensions are available, the availability of which should be clarified when ordering.

Power and Duration of Operation

The power supply of Unitree A2 is based on two battery slots and two batteries. One battery has a capacity of 9000 mAh, or 453.6 Wh, two batteries 18000 mAh, or 907.2 Wh. The system supports hot-swapping of batteries, so the robot can return to the route faster after one of the batteries is discharged.

Without a payload, the robot operates for over 5 hours and covers approximately 20 km. With a 25 kg load, it is claimed to work for over 3 hours and cover approximately 12.5 km of the route. In practice, these values depend on the mass of installed modules, speed, frequency of stops, temperature, type of surface, slope, stairs, and control mode.

Applications of Unitree A2

• Inspection of industrial facilities. The robo-dog moves through workshops, closed warehouses, and outdoor sites, carrying cameras and measuring instruments for equipment monitoring.
• Automatic logistics. The device delivers loads weighing up to 25 kg along routes with uneven floors, thresholds, stairs, or transitions between indoor and outdoor areas.
• Robotics research. The platform allows for the study of walking mechanics, drive operation, body stabilization systems, and interaction with real obstacles.
• Testing autonomous algorithms. The model is used to test autopilot, obstacle avoidance, self-orientation in space, and the connection of additional developer computing boards.
• Territory patrolling. The robot conducts regular rounds of enterprises, technical zones, and engineering sites, collecting information using cameras and scanners.
• 3D mapping. The built-in LiDAR and camera collect accurate data for space digitization, passage analysis, and navigation map setup.
• Presentations and demonstrations. The complex is suitable for showcasing technological solutions at exhibitions, media events, and for a visual demonstration of modern robotics capabilities.
• Educational laboratories. The device is integrated into practical university courses on mechatronics, computer vision, autonomous systems programming, and sensorics.

Compatibility and Extensions

Unitree A2 has a set of wired interfaces for connecting external equipment: RS485 x2, CAN x2, Gigabit Ethernet x2, USB 3.0 Type-C for 8-core processor x2, USB 3.0 Type-C for Intel Core i7 x2, as well as power outputs 12 V / 24 V / BAT. This is important for engineering teams planning to connect their own sensors, controllers, cameras, or computing units.

For wireless communication, Wi-Fi 6 and Bluetooth 5.2 are declared. As extended modules, GPS, 4G, and wireless vector tracking are noted. The computing part includes an 8-core platform processor and Intel Core i7 for the developer. Secondary development is fully supported, so Unitree A2 can be flexibly adapted to individual scenarios.

Package Contents

Unitree A2 is delivered as a ready-made development and industrial configuration for working with complex engineering missions and autonomous navigation.

• Unitree A2 robo-dog — 1 pc.
• Lithium batteries 9000 mAh — 2 pcs.
• Charging station — 1 pc.
• Handheld control remote — 1 pc.
• Built-in Intel Core i7 computing system for user tasks.
• Integrated sensors: 1 × LiDAR, 1 × HD camera, matrix microphone, speaker.
• Technical materials and manuals for the developer.

Note: The exact package contents, as well as the availability of optional modules (GPS, 4G, Wheel-leg chassis), should be clarified before ordering, as available accessories may vary depending on supply.

Technical Specifications of Unitree A2

Application Recommendations

• Consider the coverage area of the basic LiDAR. Since the basic model of Unitree A2 is equipped with one LiDAR, autonomous movement routes should be designed considering its viewing angles. Avoid blind spots during reverse movement or turns in narrow passages.
• Analyze operating conditions. Evaluate the work area in advance: the presence of stairs with step heights up to 30 cm, slope angles of slopes and ramps (up to 45°), type of flooring (concrete, soil, grass), temperature range from −20 °C to +55 °C, as well as the level of dust and moisture to meet the IP56 protection class.
• Plan the timing of autonomous missions. Note that a walking duration of over 5 hours is possible only without a load, and under a maximum load of 25 kg, it is over 3 hours. For continuous operation at the site, schedule battery replacement in advance, using the advantages of the dual-slot hot-swap system.
• Design the integration of third-party equipment. Check the compatibility of your sensors, custom cameras, or manipulators with the onboard interfaces RS485, CAN, Gigabit Ethernet, and USB 3.0 Type-C. Also, check compatibility with power lines: the robot provides 12 V, 24 V, or direct battery output (BAT).
• Clarify the exact supply configuration. The composition of the basic set may change depending on the batch. Before ordering, be sure to agree on the availability and necessity of additional accessories, navigation and communication modules GPS and 4G, as well as compatibility with the hybrid wheel-leg chassis.

Buy Unitree A2

To buy Unitree A2 Standard, get the current price and price list for the required configuration, leave a request on the product page or contact the manager. You can order Unitree A2 Pro in the EU for an enterprise, laboratory, or engineering project, the robo-dog is available for inspection, logistics, mapping, and autonomous navigation tasks.