Chinese robotics company Unitree Robotics has unveiled vAs2, a high-performance quadruped robot built for speed, load strength and advanced autonomous capabilities.
Weighing approximately 18 kg (40 lb) including battery, the robot can exert maximum joint torque of up to 90 N·m and reach running speeds of over 5 meters per second.
The As2 is powered by a 648Wh, 15,000mAh lithium battery, which allows for more than 4 hours of runtime without load and covers a distance of more than 20 km.
Even with a 33-pound load, it remains operational for more than 2.5 hours and provides a walking range of more than 13 km (8.08 miles).
Designed for real-world environments, the robot is IP54 rated and resistant to dust and rain.
It can operate at temperatures ranging from -20°C (-4°F) to 50°C (122°F), making it suitable for use in harsh industrial and outdoor conditions.
Mechanically, the As2 has 12 degrees of freedom driven by a high-speed inner-rotor PMSM motor with low inertia. Built-in industrial grade crossed roller bearings provide high precision and load capacity.
The torque-to-weight ratio is approximately 5N・m/kg, providing powerful and agile movement.
Power, speed and payload balance
Quadrupeds exhibit remarkable maneuverability indicators. It can climb 25 cm stairs, accommodate slopes of up to 40 degrees and can be fitted with vertical platforms up to 50 cm high.
The maximum continuous walking load reaches approximately 15 kg (33.07 lbs), while the EDU version has a standing weight capacity of up to 65 kg (143.30 lbs).
Speeds vary by model. The As2 AIR operates from 0 to 3.0 m/s, while the PRO and EDU versions reach 3.7 m/s, with peak speeds approaching 5 m/s under no-load conditions.
The robot integrates dual encoders for each joint, local air cooling, and supply voltage ranging from 36 V to 50.4 V. All versions also include Wi-Fi 6, Bluetooth 5.2, speakers, microphone, front light, and HD camera.
Smart following, open platform
Top models are equipped with the ISS 3.0 intelligent sidefollow system for centimeter-level positioning and stable tracking. GPS and 4G connectivity are included, but disabled by default and require user approval to activate.
PRO and EDU models also feature industrial-grade 64-128 line LiDAR systems, while the AIR version uses Unitree L2 ultra-wide-angle LiDAR.
At its core, As2 runs on a high-performance 8-core CPU. The EDU version supports secondary development and optional NVIDIA Jetson Orin NX extensions, allowing developers to deploy embedded AI applications and autonomous decision-making systems.
It can integrate Gigabit Ethernet, SBUS, and battery power output ports.
Battery configuration varies by model. The AIR version includes a standard 8000mAh battery, while the PRO and EDU models come with a 15000mAh long-range battery and fast charging support. A charging dock is available on EDU models.
Warranty coverage is 6 months for AIR and 12 months for PRO and EDU models. Pricing has not been disclosed, and the company lists all versions as “Ask your sales representative.”
The company notes that performance data was obtained under laboratory conditions and may vary depending on usage scenario.
It also warns that quadruped robots have complex structures and strong dynamics, and advises users to maintain a safe distance during operation.
