Unitree A2-W Pro Wheeled Quadruped Robot Dog (A2W-PRO)
In stock
- BRAND:
- UNITREE ROBOTICS
- PART #:
- A2W-PRO
- ORIGIN:
- China
- AVAILABILITY:
- SUBJECT TO AVAILABILITY
- SKU:
- Unitree-A2W-PRO
Unitree A2-W Pro Wheeled Quadruped Robot Dog (A2W-PRO)
Most robots are good on one kind of ground. The Unitree A2-W Pro Wheeled Quadruped Robot Dog (A2W-PRO) is built for the places where the ground changes: a smooth concrete apron that ends at a curb, a service road that meets a flight of steps, a perimeter track that crosses a drainage ditch. It rolls on a wheel at the end of each leg when the surface is easy, and it uses those same legs to climb and step when the surface is not. On top of that platform, the Pro version carries a second LiDAR unit and a wider ingress protection range.
The product is available through this page, by quotation.
Background
Unitree Robotics and the A2 line
Unitree Robotics is a company known for quadruped robots, and its range runs from compact platforms for education and research up to heavier machines meant for industrial work. The A2 family sits in the industrial part of that range. Within it, the A2-W is the wheeled member: an industrial wheeled quadruped built for autonomous inspection, security patrol, logistics and robotics research.
The A2-W is offered in two versions, the A2-W Standard and the A2-W Pro. They share the same body, the same drive hardware and the same battery options. If you are comparing the two, the Unitree A2-W Standard Wheeled Quadruped Robot Dog (A2W-STANDARD) is the place to start. The wider family is gathered in the Unitree A2 category.
Why a wheeled quadruped
A wheeled robot is efficient on flat ground, and a legged robot is capable on broken ground. A wheel-legged design tries to keep both strengths. The A2-W has 16 motorized joints, with a maximum joint torque of approximately 180 N·m, and 190 mm diameter tires that are 51 mm wide. In practice, that means long runs can be covered at travel speed, while the legs remain available for a step of approximately 30 cm or a slope of approximately 45°.
The Pro version adds to this platform in three ways. It carries two LiDAR units and one HD camera, where the Standard carries one LiDAR unit and one camera. It offers a protection rating from IP56 to IP67, with the main components certified IP67, where the Standard is rated IP56. And its expanded configuration includes the GPS, 4G and wireless vector module, which is an option on the A2-W.
Technical Specifications
| Specification | A2-W Standard | A2-W Pro |
|---|---|---|
| Standing dimensions | 900 × 440 × 625 mm | 900 × 440 × 625 mm |
| Prone dimensions | 930 × 685 × 210 mm | 930 × 685 × 210 mm |
| Tire size | 190 mm diameter × 51 mm width | 190 mm diameter × 51 mm width |
| Weight without battery | Approximately 45 kg | Approximately 45 kg |
| Weight with battery | Approximately 52 kg | Approximately 52 kg |
| Degrees of freedom | 16 motorized joints | 16 motorized joints |
| Maximum joint torque | Approximately 180 N·m | Approximately 180 N·m |
| Battery capacity | Single battery: 9,000 mAh / 453.6 Wh; dual batteries: 18,000 mAh / 907.2 Wh | Single battery: 9,000 mAh / 453.6 Wh; dual batteries: 18,000 mAh / 907.2 Wh |
| Supply voltage | 50.4 V | 50.4 V |
| Wireless connectivity | Wi-Fi 6 and Bluetooth 5.2 | Wi-Fi 6 and Bluetooth 5.2 |
| External interfaces | RS485 × 2, CAN × 2, Gigabit Ethernet × 2, USB 3.0 Type-C for 8-core CPU × 2, USB 3.0 Type-C for Intel Core i7 × 2 | RS485 × 2, CAN × 2, Gigabit Ethernet × 2, USB 3.0 Type-C for 8-core CPU × 2, USB 3.0 Type-C for Intel Core i7 × 2 |
| Operating temperature | −20°C to 55°C | −20°C to 55°C |
| No-load endurance | More than 3.5 hours of continuous travel or approximately 35 km | More than 3.5 hours of continuous travel or approximately 35 km |
| Maximum standing payload | Approximately 100 kg | Approximately 100 kg |
| Continuous walking payload | Approximately 25 kg; up to approximately 35 kg under ideal conditions | Approximately 25 kg; up to approximately 35 kg under ideal conditions |
| Speed | 0–3 m/s operating range; up to approximately 6 m/s | 0–3 m/s operating range; up to approximately 6 m/s |
| Slope capability | Approximately 45° | Approximately 45° |
| Maximum step height | Approximately 30 cm | Approximately 30 cm |
| Sensors | LiDAR ×1 + HD camera ×1 | LiDAR ×2 + HD camera ×1 |
| Protection rating | IP56 | IP56 to IP67, main components certified IP67 |
| GPS, 4G and wireless vector module | Optional | Included through expanded configuration |
Specifications as published by the manufacturer; confirmed against the datasheet at quotation.
The manufacturer has not published the ingress rating test standard, the list of included accessories, the charger specification, the maximum wheel speed on slopes, the camera resolution or the LiDAR model; they are confirmed at quotation.
What makes the A2-W Pro different from the A2-W Standard?
On the scale and the tape measure, nothing separates them. Both stand 900 × 440 × 625 mm, both weigh approximately 52 kg with a battery, and both offer the same payload, speed, slope and step figures. The differences are in what the robot can perceive, where it can work and how it stays connected.
The first difference is sensing. The Pro carries two LiDAR units and one HD camera, while the Standard carries one LiDAR unit and one HD camera. A second LiDAR unit gives the robot more to work with when it maps its surroundings and plans a route, which matters on patrol and inspection rounds that repeat every shift.
The second difference is protection. The Standard is rated IP56. The Pro is rated from IP56 to IP67, with its main components certified IP67. For a site where heavy rain, wash-down or splashing is part of the working week, that wider range is the reason to look at the Pro first.
The third difference is connectivity. The GPS, 4G and wireless vector module is an option on the A2-W, and the Pro includes it through its expanded configuration. A robot that works outdoors, away from a building network, benefits from a position fix and a mobile data link.
What does the dual battery option change?
The A2-W is specified with either a single battery of 9,000 mAh / 453.6 Wh or dual batteries totaling 18,000 mAh / 907.2 Wh, at a supply voltage of 50.4 V. The no-load endurance is more than 3.5 hours of continuous travel or approximately 35 km. The fact sheet does not tie that endurance figure to a single battery or to dual batteries, so confirm which configuration it describes when you request your quotation.
Payload also shapes planning. The maximum standing payload is approximately 100 kg, and the continuous walking payload is approximately 25 kg, up to approximately 35 kg under ideal conditions. A site that carries instruments or tools should plan around the walking figure, not the standing figure.
Who is the A2-W Pro for?
Industrial inspection teams are the clearest fit: plants, substations, storage yards and port areas, where a gauge, a valve or a fence line has to be checked on a schedule and some of the route is stairs or uneven ground. Security operators with long outdoor perimeters will value the second LiDAR unit and the built-in GPS and 4G module.
Logistics and site-services teams can use the payload and the wheeled travel speed on long, flat stretches between buildings. Universities and research laboratories will find a platform with two Gigabit Ethernet ports, two CAN ports, two RS485 ports and USB 3.0 Type-C connections for both an 8-core CPU and an Intel Core i7, which leaves room for their own computing and sensor hardware.
If your work is indoors or sheltered, if you do not need a second LiDAR unit or the higher protection range, and if you would add GPS only as an option, the A2-W Standard may be the better match. If you need a heavier wheeled platform from the same maker, the Unitree B2-W Wheeled Quadruped Robot is a separate model to review.
What is the A2-W Pro used for?
- Autonomous inspection. Repeated rounds past gauges, pumps, switchgear and pipe racks, using the robot's sensors to follow a set route.
- Security patrol. Night and day circuits along fences, gates and open yards, with GPS and 4G in the Pro configuration.
- Logistics. Carrying loads between buildings, using the payload ratings and the wheeled travel speed.
- Robotics research. A mobile base for navigation, perception and control work, with CAN, RS485, Ethernet and USB 3.0 Type-C interfaces.
- Outdoor site monitoring. Work in wet and exposed conditions, supported by the IP56 to IP67 protection range of the Pro.
- Training and demonstration. Showing teams and students how a wheel-legged robot handles slopes of approximately 45° and steps of approximately 30 cm.
Pricing and Availability
Pricing depends on the configuration, the battery choice and the delivery destination, so it is given by quotation. Send us your site requirements and we will respond with a quotation for the A2-W Pro. Delivery, customs and support are arranged with the quotation. The Unitree A2-W Pro Wheeled Quadruped Robot Dog (A2W-PRO) is available on this page.
Frequently Asked Questions
What is the difference between the A2-W Pro and the A2-W Standard?
The Pro has two LiDAR units where the Standard has one, a protection rating of IP56 to IP67 where the Standard is IP56, and the GPS, 4G and wireless vector module included through its expanded configuration. Body size, weight, payload and speed figures are the same.
How much can the A2-W Pro carry?
The maximum standing payload is approximately 100 kg. The continuous walking payload is approximately 25 kg, and up to approximately 35 kg under ideal conditions.
How fast does it travel and how far?
The operating speed range is 0–3 m/s, with up to approximately 6 m/s. The no-load endurance is more than 3.5 hours of continuous travel or approximately 35 km.
Can it climb stairs and slopes?
The maximum step height is approximately 30 cm and the slope capability is approximately 45°. Confirm the stair dimensions at your site with us when you request a quotation.
What temperatures can it work in?
The operating temperature range is −20°C to 55°C.
Which connections does it offer?
It has Wi-Fi 6 and Bluetooth 5.2, plus RS485 × 2, CAN × 2, Gigabit Ethernet × 2, USB 3.0 Type-C for 8-core CPU × 2 and USB 3.0 Type-C for Intel Core i7 × 2.
Where can I buy the Unitree A2-W Pro and what does it cost?
You can request it through this page, by quotation. The cost depends on the configuration and destination, and it is given in the quotation together with delivery, customs and support arrangements.
Summary
The Unitree A2-W Pro is a robot for sites where the ground keeps changing: smooth for stretches, then steps, slopes and weather. It shares its body, payload, speed and battery figures with the A2-W Standard, and adds a second LiDAR unit, an IP56 to IP67 protection range and GPS, 4G and wireless vector module through its expanded configuration. If your inspection, patrol, logistics or research work crosses that kind of ground, this page is the starting point.
