Unitree As2-W X Wheeled Quadruped Robot Dog
In stock
- BRAND:
- UNITREE ROBOTICS
- MODEL:
- AS2-W X
- ORIGIN:
- China
- Warranty:
- 12 MONTHS
- AVAILABILITY:
- SUBJECT TO AVAILABILITY
- SKU:
- Unitree-AS2-W-X
Unitree As2-W X Wheeled Quadruped Robot Dog
Picture the morning round at a substation or a logistics yard: a long stretch of tarmac, a flight of service steps, a gravel bank behind the fence and a steep access ramp down to the loading bay. A purely wheeled inspection unit covers the tarmac briskly and then stops at the first step. A purely walking machine manages the steps and then uses up its battery crossing the car park at a walking pace. The Unitree As2-W X Wheeled Quadruped Robot Dog is designed for routes of this kind, where the ground changes constantly and the robot is still expected to complete its round. Its four articulated legs are fitted with 7-inch powered wheels, so the same machine travels quickly along even surfaces and lifts itself over steps, kerbs and debris when the terrain requires it.
Robots Europa, based in Dublin, supplies the As2-W X to organisations across the European Union and the DACH region of Germany, Austria and Switzerland. Robots Europa prepares each quotation, arranges delivery and customs clearance, and provides support once the robot is in service. Research groups, system integrators and site operators therefore deal with a single European contact from the first enquiry through to deployment.
Background
Unitree Robotics and its quadruped lineage
Unitree Robotics is among the best-known manufacturers of legged robots. Its range runs from compact quadrupeds for education and development to heavier platforms intended for industrial and field work, and it also includes humanoid robots. The As2 family sits within this range as a group of quadrupeds that share a common platform. Some variants walk on legs alone. The As2-W models add powered wheels to each leg, which turns a walking robot into a hybrid machine able to switch between rolling and stepping as the ground changes.
The As2-W X as an open field platform
The As2-W X is the variant for buyers who intend to build their own application on the hybrid chassis. It combines an 8-core main processor, an HD camera and an industrial-grade 64- to 128-line LiDAR with Wi-Fi 6, Bluetooth 5.2, GPS and 4G connectivity. The structure pairs an aluminium alloy with high-strength engineering plastics. The joints deliver a maximum torque of approximately 95 N·m and run on industrial-grade crossed roller bearings. For integration work the robot is compatible with the Unitree SDK and APIs, and it offers Gigabit Ethernet, SBUS and a battery power output for onboard computers, GPUs, cameras and further sensors. The high-performance computing expansion dock and the charging station supplied with the As2-W EDU are not part of the As2-W X package. This keeps the X focused on teams that bring their own computing hardware and charging arrangements.
Technical Specifications
| Specification | Value |
|---|---|
| Locomotion | Four articulated legs combined with 7-inch powered wheels |
| Maximum speed | Approximately 6 m/s |
| Unloaded range | More than 30 km |
| Main processor | 8-core |
| Camera | HD camera |
| LiDAR | Industrial-grade, 64- to 128-line |
| Steps | Up to 30 cm |
| Obstacles | Approximately 40 to 80 cm |
| Slopes | Around 45° |
| Continuous travel payload | Approximately 16 kg |
| Maximum stationary load | Approximately 150 kg |
| Battery | 15,000 mAh long-range battery, 648 Wh |
| Continuous operation | Approximately 3 hours |
| Runtime with 16 kg payload | More than 2 hours |
| Charger | 50.4 V – 7.4 A fast charger, included |
| Materials | Aluminium alloy with high-strength engineering plastics |
| Maximum joint torque | Approximately 95 N·m |
| Joint bearings | Industrial-grade crossed roller bearings |
| Operating temperature | -20 to 55°C |
| Dimensions when standing | 721 × 493 × 521 mm |
| Weight with battery | Approximately 25 kg |
| Connectivity | Wi-Fi 6, Bluetooth 5.2, GPS and 4G |
| Software development | Compatible with the Unitree SDK and APIs |
| Expansion interfaces | Gigabit Ethernet, SBUS, battery power output |
| High-performance computing expansion dock | Not included |
| Charging station | Not included |
| Remote controller | 1 × remote controller |
Specifications are as published by the manufacturer and are confirmed against the datasheet at quotation.
The manufacturer has not published the ingress protection test standard, the camera resolution, the LiDAR range, the onboard storage capacity, the wheel motor power or software update details beyond OTA; Robots Europa confirms these points at quotation.
How does the As2-W X combine wheels and legs?
The As2-W X treats each leg as both a suspension member and a drive unit. On level ground the wheels carry the robot, and this is where its maximum speed of approximately 6 m/s and its unloaded range of more than 30 km apply. When the route reaches a step, a kerb or a pile of debris, the legs take over. The robot negotiates steps up to 30 cm, obstacles from approximately 40 to 80 cm and slopes of around 45°. For a site operator, this means a single route can include a car park, a stairwell and an embankment without a change of vehicle and without a technician stepping in to lift the robot.
The structure is built to suit that dual role. Joints delivering approximately 95 N·m of maximum torque provide the force needed to lift the chassis onto a step or hold a stance on a slope. The crossed roller bearings are an industrial choice for joints that take load from several directions at once. When the robot is stationary it supports a maximum load of approximately 150 kg. Its continuous travel payload is approximately 16 kg, enough for a sensor mast, an additional computer or an inspection kit. With that 16 kg on board, runtime exceeds 2 hours. Unloaded, the 15,000 mAh battery of 648 Wh provides approximately 3 hours of continuous operation, and the included 50.4 V – 7.4 A fast charger recharges it between operating sessions.
What does the As2-W EDU add over the As2-W X?
The two wheeled variants differ in what accompanies the robot. The Unitree As2-W EDU Wheeled Quadruped Robot Dog includes a high-performance computing expansion dock compatible with several modules, as well as a charging station. The As2-W X includes neither. It ships with the robot, its fast charger and one remote controller, and it relies on its Gigabit Ethernet, SBUS and battery power output for any computing hardware the buyer chooses to add.
The choice therefore depends on where the computing comes from. A laboratory that wants a ready-made route to onboard processing and a fixed charging point will find the EDU package more complete. An integrator who already has a preferred onboard computer, GPU or sensor suite, or who is building the robot into a larger system with its own infrastructure, can begin with the As2-W X and specify the remainder to suit the project.
Who is the Unitree As2-W X Wheeled Quadruped Robot Dog for?
The first group consists of operators of large or mixed sites: utilities, industrial plants, ports, logistics centres and campuses, where inspection or patrol routes cross paved areas, stairs and rough ground. For these buyers, the combination of wheeled speed and legged step-climbing is the central argument, and the LiDAR, HD camera and 4G connectivity provide a basis for remote monitoring.
The second group consists of system integrators and robotics companies building their own applications. Compatibility with the Unitree SDK and APIs, together with Gigabit Ethernet, SBUS and a battery power output, allows them to mount their own computer, sensors and software and to deliver a finished solution to their clients.
The third group consists of universities and research institutes working on locomotion, autonomy and navigation in unstructured environments. A research team that would prefer the computing expansion dock and charging station to arrive with the robot is better served by the As2-W EDU. Teams that already have their own computing platform will find the As2-W X a leaner starting point.
What is the As2-W X used for?
- Site inspection: routine rounds across substations, plants and yards, recording conditions with the HD camera and LiDAR.
- Security patrols: covering long perimeters on wheels and climbing steps to reach upper levels without human assistance.
- Mapping and surveying: capturing the surroundings with the 64- to 128-line LiDAR across ground that conventional rovers cannot cross.
- Research and development: testing hybrid locomotion, navigation and autonomy algorithms through the Unitree SDK and APIs.
- Payload transport: carrying sensors or equipment of approximately 16 kg on continuous travel across mixed terrain.
- Outdoor field trials: working through the -20 to 55°C operating range for trials in changing weather and seasons.
Pricing and Availability
Robots Europa supplies the Unitree As2-W X on quotation, so that the offer reflects the configuration, accessories and destination of each order within the EU or the DACH region. Delivery, customs and support are arranged with the quotation. To begin, please use the quotation request available on this page.
Frequently Asked Questions
Can the As2-W X climb stairs?
Yes. Its hybrid architecture negotiates steps up to 30 cm and slopes of around 45°, and it uses its legs to clear obstacles from approximately 40 to 80 cm.
How long does the battery last?
The 15,000 mAh battery, with a capacity of 648 Wh, provides approximately 3 hours of continuous operation. With a 16 kg payload, runtime exceeds 2 hours.
Can I add my own computer and sensors?
Yes. The robot is compatible with the Unitree SDK and APIs, and its Gigabit Ethernet and SBUS interfaces, together with its battery power output, allow an onboard computer, GPU, cameras or other sensors to be added.
Is a charging station included?
No. The As2-W X comes with a 50.4 V – 7.4 A fast charger and one remote controller. The charging station and the high-performance computing expansion dock are included with the As2-W EDU.
In what temperatures can the robot operate?
The As2-W X has an operating temperature range of -20 to 55°C.
How large and heavy is the As2-W X?
When standing, the As2-W X measures 721 × 493 × 521 mm. It weighs approximately 25 kg with its battery fitted.
Where can I buy the Unitree As2-W X Wheeled Quadruped Robot Dog and what does it cost?
Robots Europa supplies the As2-W X across the EU and the DACH region on individual quotation. The quotation sets out the offer for your configuration and includes delivery, customs and support arrangements.
Summary
The morning round at a mixed site exposes the limits of most mobile robots: they are either quick on the flat or capable on the steps, rarely both. The Unitree As2-W X addresses that problem with four articulated legs fitted with 7-inch powered wheels. It travels at approximately 6 m/s across open ground, climbs steps up to 30 cm and carries approximately 16 kg on continuous travel. Its 8-core processor, HD camera, 64- to 128-line LiDAR, Wi-Fi 6, Bluetooth 5.2, GPS and 4G give it the means to see and report. The Unitree SDK and APIs, Gigabit Ethernet, SBUS and battery power output leave room for each project's own computing and sensors. Teams that would like the computing dock and charging station included can consider the As2-W EDU. For those who want the hybrid chassis as an open base, supplied, quoted and supported by Robots Europa across Europe, this page is the starting point.
