A2-W Standard: Wheel-Leg Hybrid Quadruped for Extended Range and Dynamic Mobility

The A2-W Standard is a wheel-leg hybrid version of Unitree’s A2 quadruped platform, designed for superior endurance, speed, and terrain versatility. Combining the agility of legged motion with the efficiency of wheel-assisted travel, the A2-W Standard delivers extended range and high payload performance for industrial, research, and field robotics applications.

Powered by an 8-core high-performance CPU and optional Intel Core i7 computing module, it supports both high- and low-level development while maintaining full compatibility with Unitree’s intelligent control and sensing ecosystem. The dual-battery system provides hours of continuous operation, while advanced LiDAR and camera sensors ensure precise perception and navigation.

Key Features of the A2-W Standard

Wheel-Leg Hybrid Mobility:
Integrates powered wheels on each limb, allowing seamless transitions between legged locomotion and wheeled travel for greater speed and energy efficiency.

Extended Endurance:
Operates up to 4–5 hours unloaded (≈ 20 km range) or 2.5–3 hours with a 25 kg payload, maintaining stability and terrain adaptability.

High Load Capacity:
Supports 20–25 kg effective payload while maintaining agile performance and balance during motion and manipulation tasks.

Dual-Battery Power System:
Includes 9,000 mAh batteries (dual = 18,000 mAh / 907.2 Wh) with 1-hour charge time, supporting long-duration deployments and hot-swap operation.

Rugged Performance:
Operates in temperatures from -20 °C to 55 °C, climbs stairs up to 28 cm, single steps up to 90 cm, and slopes up to 45°.

Advanced Sensing and Vision:
Equipped with 1 LiDAR and a wide-angle camera (expandable to 2) for real-time obstacle avoidance, mapping, and situational awareness.

Industrial-Grade Control:
Powered by a dual-processor system (8-core CPU + Intel Core i7) with dual encoders and high-speed, low-inertia rotor motors for smooth, precise movement.

Developer-Ready Ecosystem:
Supports Isaac SIM and high/low-level secondary development with robust API access and modular external interfaces.

Technical Specifications

Configuration:
Wheel-leg hybrid quadruped

Payload Capacity:
20–25 kg

Runtime & Range:
Unloaded: 4–5 hours (≈ 20 km)
Loaded (25 kg): 2.5–3 hours (≈ 12.5 km)

Battery:
Single: 9,000 mAh (453.6 Wh)
Dual: 18,000 mAh (907.2 Wh)
Charge Time: ≈ 1 hour

Operating Temperature:
-20 °C to 55 °C

Mobility:
Max Slope: 45°
Stair Height: 28 cm
Step Height: 90 cm

Computing Power:
8-core CPU + Intel Core i7 (dual-compute system)

Sensors:
1 LiDAR
1 wide-angle camera (expandable to 2)

Connectivity:
Wi-Fi 6
Bluetooth 5.2
RS485 ×2 | CAN ×2 | Gigabit Ethernet ×2 | USB 3.0 Type-C ×4
Power Outputs: 12 V / 24 V / BAT

Additional Features:
Speaker, microphone, lighting lamp
Intelligent OTA upgrade
Stable obstacle avoidance, point-cloud surround view, autonomous charging (optional)

Warranty:
1-year limited warranty

The A2-W Standard delivers a perfect balance of speed, stability, and endurance—offering long-range, high-efficiency performance for inspection, mapping, logistics, and robotics research in both indoor and outdoor environments.