Unitree A2-W Standard
- Wheeled-Foot Mobility – Advanced wheeled-foot configuration with up to 45° slope climbing, ≥28 cm continuous stair capability, and ≥90 cm single-step climbing height.
- 20–25 kg Payload Capacity – Designed to carry approximately 20–25 kg for industrial inspection, research, and autonomous mobility applications.
- Extended Range & Dual-Battery Power – Delivers approximately 4–5 hours of unloaded operation with up to 20 km range; dual-battery capacity reaches 18,000 mAh (907.2 Wh).
- Dual Computing Architecture – Powered by an 8-core high-performance CPU and Intel Core i7, providing two built-in computing cores for advanced development.
- LiDAR & Vision Perception – Equipped with one LiDAR and a wide-angle camera, expandable to two cameras, for obstacle avoidance and point cloud surround view.
- Advanced Robotics Development – Supports high- and low-level secondary development, robot models, simulation interfaces, and NVIDIA Isaac Sim environments.
- Industrial Connectivity & Smart Features – Features Wi-Fi 6, Bluetooth 5.2, intelligent OTA updates, HD image transmission, lighting, and optional autonomous charging.
- Trusted dealerDirect manufacturer partnership
- Pan-India deliveryInsured shipping, all states
- Post-sale supportTraining + service included
What makes it work
Unitree A2-W
Wheel Shadow — speed across the field. A heavy-load wheeled paradigm combining an industrial-grade mobile platform with high-efficiency wheel-drive architecture: ~180N·m max joint torque, 100kg standing payload, hot-swappable dual batteries, and speeds up to 6m/s.
High-Efficiency Wheel-Drive, Heavy Industrial Payload
The Unitree A2-W combines a high-efficiency wheel-drive architecture with heavy payload capacity and agility, suited for industrial inspection, park logistics, emergency rescue and more. It weighs about 52kg with its battery, running on 16 industrial-grade joint motors with crossed roller bearings that deliver approximately 180N·m of max joint torque — enough for a standing load of about 100kg and a continuous walking load of about 25kg (up to approximately 35kg ideally). It runs unloaded for more than 3.5 hours (about 35km) or over 1.5 hours (about 15km) carrying a 25kg load, powered by a dual-slot, dual-battery system that supports hot-swapping without stopping the mission. This is an all-new, high-quality mobile hardware platform with an open architecture, ready to use for rapid development and efficient deployment.
Four Pillars of the A2-W
Speed Across the Field
Mobile Platform, Adaptability, Perception & Power
Industrial-Grade Mobile Platform — Heavy-Load Wheeled Paradigm
The A2-W's high-efficiency wheel-drive architecture combines payload capacity with agility, purpose-built for industrial inspection, park logistics, and emergency rescue deployments.
Superior Adaptability — Complex Environments Handled With Ease
An all-new, high-quality mobile hardware platform with an open architecture, ready to use out of the box for rapid development and more efficient deployment across varied field conditions.
Dual-Sided Perception — Zero Blind Spots, Greater Accuracy
The standard A2-W carries a single LiDAR with an HD camera and front light to detect the environment ahead. The A2-W Pro steps this up to 2 industrial LiDARs (front and rear) for zero-blind-spot coverage.
Hot-Swappable Dual Batteries · Unlimited Runtime
A dual-battery parallel design lets operators swap batteries without stopping the mission — the eternal heart for extreme deployments. A reliable triple power system guarantees stable operation from -20°C to 55°C.
Unitree A2-W — In the Field
Shared Platform Design — A2-W
The A2-W shares its core computing platform and connectivity foundation with the legged A2, re-engineered with a 16-motor wheel-drive chassis for high-speed, heavy-load field deployment.
A2-W — What's Included
A2-W — Complete Specification
| Specification | Details |
|---|---|
| Mechanical Parameters | |
| Size (Standing) | 900mm × 440mm × 625mm |
| Size (Lying Prone) | 930mm × 685mm × 210mm |
| Tyre Size | Diameter: 190mm · Width: 51mm |
| Material | Aluminium alloy + high-strength engineering plastic |
| Weight (without battery) | About 45kg |
| Weight (with battery) | About 52kg |
| Degrees of Freedom | 16 joint motors |
| 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) |
| Max Joint Torque | About 180N·m |
| Range of Motion | Body: -58°~58° · Thigh: -134°~180° / -89°~225° · Shank: -158°~-30° |
| Electrical Characteristics | |
| Supply Voltage | 50.4V |
| Joint Encoder | Dual encoders |
| Cooling System | Local air cooling |
| Power Supply | Dual slots, dual batteries |
| Battery Capacity | Single battery 9000mAh (453.6Wh) · Dual batteries 18000mAh (907.2Wh) |
| Wi-Fi 6 / Bluetooth 5.2 | Yes |
| Speaker | Yes |
| Microphone | Microphone array |
| Front Light | Yes |
| Wireless Vector Follow Module | Optional |
| GPS | Optional |
| 4G | Optional |
| Sensor | LiDAR ×1 + HD Camera ×1 |
| Control & Compute | Standard: 8-core high-performance CPU (platform) + Intel Core i7 (user development) |
| External Interfaces | RS485 ×2 · CAN ×2 · Gigabit Ethernet ×2 · USB3.0-TypeC (8-Core CPU) ×2 · USB3.0-TypeC (Intel Core i7) ×2 · Power Output: 12V / 24V / BAT |
| Performance Metrics | |
| Operating Temperature | -20°C ~ 55°C |
| Battery Life (No Load) | >3.5 hours continuous walking, approx. 35km |
| Battery Life (25kg Load) | >1.5 hours continuous walking, approx. 15km |
| Max Standing Load | About 100kg |
| Continuous Walking Load | About 25kg (ideally up to approx. 35kg) |
| Slope Walking Capability | About 45° |
| Stair Climbing Capability | Max step height 30cm |
| Max Climb Height | About 0.5–1m |
| Speed | 0–3 m/s (up to ~6 m/s) |
| Ingress Protection Rating | IP56 |
| Other | |
| Smart OTA Upgrade | Continuous upgrades |
| Secondary Development | Supported |
| Warranty | 12 months |
Common Questions — A2-W
How is the A2-W different from the legged A2?
The A2-W replaces the standard legged foot design with a 16-motor wheel-drive architecture (vs 12 motors on the A2) and 190mm tires, reaching higher top speeds of up to 6m/s (vs up to 5m/s on the A2), though its sustained speed range and unloaded runtime differ slightly due to the wheeled design.
How much payload can the A2-W carry?
The A2-W supports a standing load of about 100kg, and can continuously walk while carrying about 25kg (up to approximately 35kg ideally).
How long does the battery last?
Unloaded, the A2-W runs for more than 3.5 hours (about 35km). Carrying a 25kg load, it runs for more than 1.5 hours (about 15km). The dual-battery system supports hot-swapping without stopping the mission.
Are GPS, 4G and the wireless vector follow module included?
No, not on the standard A2-W — these are optional additions. They are included as standard, expanded features on the A2-W Pro.
What is the ingress protection rating?
The standard A2-W carries an IP56 rating. The A2-W Pro steps this up to IP56–IP67, with core components specifically rated IP67.
Does the A2-W support secondary development?
Yes. The A2-W fully supports secondary development and continuous smart OTA upgrades, with an 8-core CPU plus Intel Core i7 included for user development.
The full sheet
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