Unitree A2 Standard Quadruped Robot Dog

Computing

• Main CPU: Standard: 8-Core high-performance CPU (platform) + Intel Core i7 (user development)
• High Computing Power Module: Not supported
• Secondary Development Support: Supported

Hardware

• Dimensions (Standing): 820 × 440 × 570 mm
• Dimensions (Crouching): 720 × 550 × 220 mm
• Weight (with Battery): 37 kg
• Materials: Aluminum alloy and high-strength engineering plastic
• Front Light: Included
• Battery Capacity: Single 9000mAh (453.6Wh); Dual 18000mAh (907.2Wh)
• Power Output: 12V / 24V / BAT
• Supply Voltage: 50.4V
• Battery Life (No Load): >5h continuous walking, ~20km
• Battery Life (25kg Load): >3h continuous walking, ~12.5km

Performance

• Max Standing Load: ~100 kg
• Continuous Walking Load: ~25 kg
• Speed: 0–3.7 m/s (up to ~5 m/s)
• Max Climb Height: 0.5–1 m
• Max Step Height: 30 cm
• Max Slope: 45°
• Operating Temperature: -20℃ to 55℃

Mechanical

• Max Joint Torque: 180 N·m
• Degrees of Freedom (DOF): 12
• Aluminium Knee Joint Motors: 12 sets
• Joint Bearings: Industrial-grade crossed roller bearings (high precision, high load capacity)
• Joint Motors: Low-inertia, high-speed inner rotor PMSM (enhanced response & heat dissipation)
• Joint Encoder: Dual encoders
• Body Rotation: -58° to 58°
• Thigh Rotation: 134°–180° / -89°–225°
• Shank Rotation: -158° to -30°

Cameras & Sensors

• 3D LiDAR: Industrial-grade LiDAR (expandable to 2)
• Front Camera: HD Camera × 1

Audio & Connectivity

• Wi-Fi: Wi-Fi 6
• Bluetooth: Bluetooth 5.2
• 4G Module: Optional
• GPS: Optional
• Wireless Vector Positioning Tracking Module: Optional
• Microphone: Microphone array
• Built-in Speaker: Included
• Voice Function: Supported
• External Interfaces: RS485 ×2; CAN ×2; Gigabit Ethernet ×2; USB3.0 Type-C (8-Core CPU) ×2; USB3.0 Type-C (Intel Core i7) ×2

Features

• OTA Upgrade System: Supported
• RTT 2.0 Picture Transmission: Supported
• Ingress Protection Rating: IP56
• Replace Wheel-leg: Optional
• Warranty: 12 months
• Cooling System: Local air cooling