Unitree Launches A2 Stellar Explorer: Rugged, Agile Quadruped Built for Industry

Unitree Robotics introduces the A2 Stellar Explorer, a formidable quadruped robot designed for industrial-grade missions. Demonstrating unmatched agility and endurance, the A2 represents a leap forward in four-legged robotic capabilities. It’s lighter, stronger, faster—and purpose-built for demanding environments.

Technical Highlights & Performance

Weight & Endurance: The A2 weighs approximately 37 kg with its batteries. It achieves up to 5 hours (or 20 km) of continuous operation when unloaded, and 3 hours (around 12.5 km) under load.
Load Capacity: Supports a 100 kg payload while stationary; during motion, it handles up to 25 kg, with tests showing a 30 kg load maintained across 12 km on a charge.
Mobility & Terrain Handling: Achieves top speeds of 5 m/s (11.2 mph), climbs 30 cm steps, and navigates 45° slopes with ease. It even smashes through glass and swiftly recovers from falls.
Sensing & Resilience: Equipped with dual LiDAR (front and rear), HD camera, and front illumination—ensuring 360° environmental awareness. Built with 12 robust motors, it continues operating effectively after stumbles or impacts.
Power System: Features a hot-swappable dual-battery system (9000 mAh each) and a triple-redundancy power setup, enabling uninterrupted operations in temperatures from –20 °C to 55 °C.
Durability & Connectivity: Crafted from aluminum alloy and high-strength polymers, the A2 boasts IP56 rating (IP67 on critical components), wired and wireless connectivity (Wi-Fi 6, Bluetooth 5.2), optional GPS/4G modules, plus external I/O including USB-C, Gigabit Ethernet, and CAN interfaces.

Industrial Applications & Strategic Impact

Built for real-world challenges, the A2 excels in:

Industrial Inspection in off-road or dangerous environments
Emergency Response and search-and-rescue missions
Logistics & Payload Delivery across varied terrain
Its rugged build and open development platform invite customization, enabling researchers and enterprises to deploy and upgrade it in the field.

Unitree’s Rising Robotics Leadership

Unitree remains at the helm of China’s quadruped robotics industry, accounting for around 60% of the global market and offering significantly more affordable alternatives to competitors like Boston Dynamics’ Spot.
The A2 further cements Unitree’s role in enhancing industrial autonomy and robotics accessibility worldwide.