Unitree A2 — Stellar Explorer
The Unitree A2 is a medium-sized, industrial-grade quadruped robot built for agility, endurance and rapid integration. Weighing approximately 42 kg fully loaded, the A2 walks continuously for over 5 hours and 20 km unloaded, and over 3 hours with a 25 kg payload. Its dual-battery hot-swap system, dual-sided LiDAR perception, wheel-leg option and open development platform make it the industrial choice for logistics, inspection, emergency rescue and any mission demanding a lightweight yet powerful robotic partner.
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Agile & Lightweight — 42 kg, Industrial Capability
At approximately 42 kg fully loaded, the A2 delivers industrial-grade performance in a package light enough to transport and deploy rapidly. Its 12 degrees of freedom, industrial-grade crossed roller bearings and low-inertia high-speed inner rotor PMSM joint motors deliver up to 180 N·m of peak torque — providing the power-to-weight ratio needed to conquer rugged terrain, climb 30 cm steps and traverse slopes up to 45° while remaining nimble and responsive in the field.
Open Industrial Platform — Rapid Secondary Development
The A2 ships as a premium mobile hardware platform fully open for secondary development. An 8-core high-performance CPU handles platform operations while an onboard Intel Core i7 is dedicated entirely to user development — with an optional high-computing-power expansion dock for demanding AI workloads. External interfaces including RS485 ×2, CAN ×2, Gigabit Ethernet ×2, USB3.0-TypeC ×4 and multiple power outputs (12 V / 24 V / BAT) give integrators the connectivity needed to attach custom sensors, arms or control systems without compromise.
Dual-Sided Perception — Zero Blind Spots
The A2-PRO variant equips two industrial LiDARs — one front-facing, one rear-facing — alongside an HD camera and integrated front lighting, eliminating the blind spots that single-sensor platforms leave behind. This 360-degree awareness allows the A2-PRO to detect obstacles and map environments from all directions simultaneously, enabling safe autonomous navigation in complex, crowded industrial spaces. The standard A2 includes one LiDAR and one HD camera for applications where rear coverage is handled by system design.
Wheel-Leg Option — Unleash Greater Performance
The optional wheel-leg configuration transforms the A2 into a hybrid platform that combines the terrain versatility of legged locomotion with the speed and efficiency of wheeled transit. On flat, paved surfaces it rolls quickly and quietly; on stairs, rubble and inclines it walks with full stability. This dual-mode capability is particularly valuable in logistics and inspection scenarios where the robot must transit long corridors at speed, then enter rough-terrain areas without swapping platforms or losing mission time.
Dual Battery Hot-Swap — Unlimited Runtime
The A2’s dual-battery parallel design allows one battery to be swapped while the other continues to power the robot — eliminating downtime entirely. Each battery holds 9,000 mAh (453.6 Wh); running dual batteries gives 18,000 mAh (907.2 Wh) for maximum endurance. A reliable triple power system guarantees stable operation from −20°C to 55°C, ensuring the A2 can sustain continuous missions across the full range of Gulf climate conditions without unplanned stops.
Unitree A2 — Specifications
| Category | A2 | A2-PRO |
|---|---|---|
| Dimensions (standing) | 820 × 440 × 570 mm | |
| Dimensions (lying prone) | 720 × 550 × 220 mm | |
| Material | Aluminium alloy + high-strength engineering plastic | |
| Weight (without battery) | ~35 kg | |
| Weight (with battery) | ~42 kg | |
| Degrees of freedom | 12 | |
| Joint bearings | Industrial-grade crossed roller bearings | |
| Joint motors | Low-inertia, high-speed inner rotor PMSM | |
| Max joint torque | ~180 N·m | |
| Range of motion — body | −58° to +58° | |
| Range of motion — thigh | −134° to 180° / −89° to 225° | |
| Range of motion — shank | −158° to −30° | |
| Supply voltage | 50.4 V | |
| Battery capacity | Single: 9,000 mAh (453.6 Wh) • Dual: 18,000 mAh (907.2 Wh) | |
| Battery type | Hot-swappable dual slots | |
| Connectivity | Wi-Fi 6, Bluetooth 5.2 | |
| Speaker & microphone | Yes (microphone array) | |
| Front light | Yes | |
| Wireless vector follow | Optional | Yes (expanded) |
| GPS | Optional | Yes (expanded) |
| 4G | Optional | Yes (expanded) |
| LiDAR | 1 × LiDAR | 2 × LiDAR (front & rear) |
| Camera | 1 × HD Camera | |
| Computing (platform) | 8-core high-performance CPU | |
| Computing (user dev) | Intel Core i7 (optional: expansion dock) | |
| External interfaces | RS485 ×2, CAN ×2, Gigabit Ethernet ×2, USB3.0-TypeC ×4, 12 V / 24 V / BAT power output | |
| Operating temperature | −20°C to 55°C | |
| Endurance (no load) | >5 h / ~20 km | |
| Endurance (25 kg load) | >3 h / ~12.5 km | |
| Max standing load | ~100 kg | |
| Continuous walking load | ~25 kg (up to ~35 kg) | |
| Max speed | 0–3.7 m/s (up to ~5 m/s) | |
| Slope angle | ~45° | |
| Max step height | 30 cm | |
| Max climb height | ~0.5 m – 1 m | |
| Ingress protection | IP56 | IP56–IP67 (core components IP67) |
| Wheel-leg option | Optional | |
| OTA upgrades | Yes — continuous | |
| Secondary development | Supported | |
| Warranty | 12 months | |
