Unitree B2-W. Review and price.
Unitree B2-W is the wheeled variant of the B2 industrial-grade quadruped robot from Unitree Robotics. It combines powerful leg actuation with detachable or hybrid wheels for superior efficiency on flat surfaces (higher speeds and longer range) while retaining strong all-terrain capabilities for stairs, slopes, and obstacles. It is designed for industrial inspection, security, logistics, exploration, and heavy-payload tasks.
Key Technical Specifications
- Dimensions: Standing ≈ 1098 mm × 550 mm × 758 mm; Prone/Lying ≈ 950 mm × 550 mm × 450 mm.
- Weight: ≈ 75–85 kg (including battery, depending on configuration).
- Degrees of Freedom (DOF): 12 (leg joints) + wheeled foot modules.
- Max Speed: Up to 15 km/h (≈ 4.2 m/s) on wheels/flat terrain (higher speeds possible in special configurations; safety-limited in practice). Legged mode retains high dynamic performance similar to B2.
- Wheel Specs: Diameter 225 mm; Max wheel torque 40 N·m; Max wheel speed 50 rad/s.
- Payload Capacity: Standing load ≥ 120 kg; Continuous walking/moving load > 40 kg.
- Terrain Capabilities: Max obstacle crossing and stair climbing (20–25 cm steps, up to 40 cm forward in some modes); Slope angle > 45°; Excellent adaptability on grass, gravel, slippery, or uneven surfaces.
- Battery: > 2 kWh (typically 45 Ah / 2250 Wh), 58 V; Quick-swap capable.
- Endurance: Unloaded ≈ 25–30 km; With 40 kg load ≈ 25 km (significantly improved efficiency on flat/hybrid terrain compared to pure legged B2).
- Operating Temperature: -20°C to 55°C.
- Ingress Protection: IP67 (dust and water resistant).
- Computing: Standard Intel Core i5 (platform) + Intel Core i7 (user development). Optional upgrades (additional i7 or NVIDIA Orin NX modules).
- Sensing: Typically includes 3D LiDAR, depth cameras, and optical cameras (varies by config, e.g., 32-channel LiDAR option).
- Interfaces: Multiple 1000M Ethernet, USB 3.0, power outputs (12V, 5V, 24V, BAT).
- Other Features: Hybrid wheel-leg mobility, strong joint torque (≈ 360 N·m), continuous OTA updates, full SDK support, and high terrain adaptability.
Price
- Official Unitree pricing is typically listed around $100,000 USD (contact sales for negotiated/actual pricing and customization).
- Authorized resellers often offer it from approximately $93,300 USD and up, depending on configuration (LiDAR options, computing, accessories, etc.).
Prices vary with options such as extra batteries, advanced sensors, or software. Contact Unitree or distributors for current quotes.
- Available directly from the official Unitree shop and authorized resellers worldwide.
- Standard configurations are often ready to ship or have lead times of 30–60 days (or more for heavy customization).
- Primarily targeted at businesses, research institutions, and industrial users. Global shipping supported (buyer responsible for duties, taxes, and customs).
This is a civilian robot—comply with local laws and use responsibly.
