Unitree A2 Standard
Unitree A2 Standard
Stellar Explorer
Agile & Swift Lightweight Extended Endurance
Weighs around 42kg, fully loaded can continuously walk 3h / 12.5km
Unloaded can continuously walk 5h / 20km.
Lighter, Faster, Tougher
Industrial-Grade Legged Robot Heavy Payload Standard
Premium mobile hardware platform, open for rapid development
Dual-Sided Perception
Zero Blind Spots Greater Accuracy
2 industrial LiDARs (front & rear) , HD camera + front light to detect the environment ahead
Wheel-Leg Option Available
Unleash Greater Performance
Dual Battery System
Hot-Swappable Dual Batteries · Unlimited Runtime」: Seamless Battery Swap, Uninterrupted Mission
Dual-battery parallel design: swap without stopping, the eternal heart for extreme missions
Reliable triple power system guarantees from -20°C to 55°C
High Power，Smart Control， Multi-Scenario Ready
From logistics, industrial inspection, to emergency rescue — effortlessly navigating extreme and complex environments with confidence
Product Parameters
|
Model |
A2 |
A2-PRO Custom Industry Solutions |
|
Size (Standing) |
820mm x 440mm x 570mm |
820mm x 440mm x 570mm |
|
Size (Lying Prone) |
720mm x 550mm x 220mm |
720mm x 550mm x 220mm |
|
Material |
Aluminum Alloy + High-Strength Engineering Plastic |
Aluminum Alloy + High-Strength Engineering Plastic |
|
Weight (without battery) |
About 35kg |
About 35kg |
|
Weight (with battery) |
About 42kg |
About 42kg |
|
Degrees of Freedom (Joint Motors) |
12 |
12 |
|
Joint Bearings |
Industrial-grade crossed roller bearings (high precision, high load capacity) |
Industrial-grade crossed roller bearings (high precision, high load capacity) |
|
Joint Motors |
Low-inertia, high-speed inner rotor PMSM (enhanced response & heat dissipation) |
Low-inertia, high-speed inner rotor PMSM (enhanced response & heat dissipation) |
|
Max Joint Torque |
About 180 N.m |
About 180 N.m |
|
Range of Motion |
body：-58~58° thigh：-134°~180°/-89°~225° shank：-158°~-30° |
body：-58~58° thigh：-134°~180°/-89°~225° shank：-158°~-30° |
|
Supply Voltage |
50.4V |
50.4V |
|
Joint Encoder |
Dual encoders |
Dual encoders |
|
Cooling System |
Local air Cooling |
Local air Cooling |
|
Power Supply |
Dual slots, dual batteries |
Dual slots, dual batteries |
|
Battery Capacity |
Single Battery 9000mAh（453.6Wh） Dual Batteries 18000mAh（907.2Wh） |
Single Battery 9000mAh（453.6Wh） Dual Batteries 18000mAh（907.2Wh） |
|
Wi-Fi 6, Bluetooth 5.2 |
YES |
YES |
|
Speaker |
YES |
YES |
|
Microphone |
Microphone array |
Microphone array |
|
Front Light |
YES |
YES |
|
Wireless vector follow module |
/ （Optional） |
Expand （Optional） |
|
GPS |
/ （Optional） |
Expand （Optional） |
|
4G |
/ （Optional） |
Expand （Optional） |
|
Sensor |
LiDAR × 1 + HD Camera × 1 |
LiDAR × 2 + HD Camera × 1 |
|
Control & Compute |
Standard: 8-Core high-performance CPU (platform) + Intel Core i7 (user development) |
Standard: 8-Core high-performance CPU (platform) + Intel Core i7 (user development) Optional: high computing power expansion dock |
|
External Interfaces |
RS485 x 2 CAN x 2 Gigabit Ethernet x 2 USB3.0-TypeC(8-Core CPU) x 2 USB3.0-TypeC (Intel Core i7)x2 Power Output：12V / 24V / BAT |
RS485 x 2 CAN x 2 Gigabit Ethernet x 2 USB3.0-TypeC(8-Core CPU) x 2 USB3.0-TypeC (Intel Core i7)x2 Power Output：12V / 24V / BAT |
|
Operating Temperature |
-20℃～55℃ |
-20℃～55℃ |
|
Battery Life |
No Load： >5hours continuous walking, approx. 20km With 25kg Load： >3 hours continuous walking, approx. 12.5km |
No Load： >5hours continuous walking, approx. 20km With 25kg Load： >3 hours continuous walking, approx. 12.5km |
|
Max Standing Load |
About 100kg |
About 100kg |
|
Continuous Walking Load |
About 25kg |
About 25kg |
|
Slope Walking Capability |
About 45° |
About 45° |
|
Stair Climbing Capability |
Max Step Height: 30cm |
Max Step Height: 30cm |
|
Max Climb Height |
About 0.5～1m |
About 0.5～1m |
|
Speed |
0–3.7 m/s (Up to ~5 m/s) |
0–3.7 m/s (Up to ~5 m/s) |
|
Replace Wheel-leg |
Optional |
Optional |
|
Ingress Protection Rating |
IP56 |
IP56–IP67 (Core components rated IP67) |
|
Smart OTA Upgrade |
Continuous Upgrades |
Continuous Upgrades |
|
Secondary Development |
Supported |
Supported |
|
Warranty |
12 Months |
12 Months |
[1] For detailed functions, please refer to the Secondary Development Manual.
[2] For detailed warranty terms, please refer to the Product Warranty Manual.
[3] The above parameters may vary in different application scenarios and different configurations, please contact sales before purchasing.
[4] This quadruped robot has a complex structure and powerful dynamics. Users must keep a safe distance from the robot at all times. Please use with caution.
[5] The product appearance is subject to change. Please refer to the final product.
[6] Some example features shown on this page are under development and testing, and will be made available to users gradually.
[7] This product is a civilian robot. We kindly request that all users refrain from making any dangerous modifications or using the robot in a hazardous manner.
[8] Please visit Unitree Robotics Website for more related terms and policies, and comply with local laws and regulations.
