.a2-spec-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(360px,1fr)); gap:34px; } .a2-spec-table { width:100%; border-collapse:collapse; table-layout:fixed; } .a2-spec-table th, .a2-spec-table td { vertical-align:top; } .a2-spec-table th:first-child, .a2-spec-table td:first-child { width:34%; } @media (max-width:700px) { .a2-spec-grid { grid-template-columns:1fr !important; gap:26px !important; } .a2-spec-table, .a2-spec-table thead, .a2-spec-table tbody, .a2-spec-table tr, .a2-spec-table th, .a2-spec-table td { display:block !important; width:100% !important; box-sizing:border-box !important; } .a2-spec-table { table-layout:auto !important; } .a2-spec-table thead { display:none !important; } .a2-spec-table tr { border-bottom:1px solid #d1d5db !important; } .a2-spec-table tr:last-child { border-bottom:0 !important; } .a2-spec-table td { border-bottom:0 !important; overflow-wrap:anywhere !important; word-break:normal !important; } .a2-spec-table td:first-child { padding:15px 16px 8px !important; background:#f7f7f7 !important; font-weight:700 !important; } .a2-spec-table td:nth-child(2), .a2-spec-table td:nth-child(3) { padding:10px 16px 16px !important; background:#ffffff !important; } .a2-spec-table td:nth-child(2)::before { content:"A2 (Standard)"; display:block; margin-bottom:4px; font-size:12px; font-weight:700; letter-spacing:.8px; text-transform:uppercase; color:#6b7280; } .a2-spec-table td:nth-child(3)::before { content:"A2-PRO"; display:block; margin-bottom:4px; font-size:12px; font-weight:700; letter-spacing:.8px; text-transform:uppercase; color:#6b7280; } } Industrial-Grade Quadruped Robot Unitree A2 Overview Built for Industry, Research, and Resilient Field Tasks Meet the Unitree A2, the next generation in quadruped robotics tailored for industry, research, and resilient field tasks. Weighing approximately 37 kg (82 lb) with dual hot-swappable batteries—and about 31 kg without them—this robot balances payload capability, elite mobility, and developer flexibility. Why It's a Game-Changer Superior Load & Endurance Supports up to 100 kg stationary, carries up to 25 kg while walking, and achieves up to 20 km (5 h) range unloaded or 12–13 km (3 h) when loaded. Unmatched Agility Speeds reach up to 5 m/s (11 mph). Capable of scaling 1-meter obstacles, negotiating 30 cm steps, and traversing inclines up to 45°, even under dynamic loads. Full 360° Perception Equipped with front and rear 3D LiDAR, an HD camera with front lighting, and AI-powered vision for real-time terrain awareness and navigation. Rugged & Weather-Ready Built from aluminum alloy and engineering plastics with an IP56 chassis and IP67-sealed critical components—operational in temperatures ranging from –20 °C to 55 °C. High-Power Actuation Features 12 precision joints driven by high-speed PMSM motors delivering up to 180 N·m torque, enabling dynamic moves like jumps, flips, and balancing under stress. Developer-Ready Platform Combines an 8-core onboard CPU with an optional Intel i7 expansion, full ROS/ROS 2 SDK support, OTA updates, and interfaces including CAN, RS-485, Ethernet, USB‑C, Wi‑Fi 6, and Bluetooth 5.2. Official Introduction Unitree Introducing | Unitree A2 Stellar Explorer Unitree A2 Quadruped Robot is Perfect For Autonomous inspection and security patrols Rugged logistics and payload deployment Emergency rescue and field reconnaissance Robotics R&D, developer experimentation, and ROS-based innovation Model Comparison A2 Standard vs A2-PRO Mechanical Parameter A2 (Standard) A2-PRO Size (standing) 820 × 440 × 570 mm 820 × 440 × 570 mm Size (lying) 720 × 550 × 220 mm 720 × 550 × 220 mm Material Aluminum alloy + high-strength engineering plastic Same Weight (no battery) ≈31 kg ≈31 kg Weight (with battery) ≈37 kg ≈37 kg DoF (motors) 12 12 Joint bearings Industrial crossed-roller Same Joint motors Low-inertia, high-speed inner-rotor PMSM Same Max joint torque ≈180 N·m ≈180 N·m Range of motion body −58°~58°; thigh −134°~180° Same Electrical Parameter A2 (Standard) A2-PRO Supply voltage 50.4 V 50.4 V Encoders Dual encoders Dual encoders Cooling Local air cooling Local air cooling Power slots Dual slots, dual batteries Dual slots, dual batteries Battery capacity Single 9000 mAh (453.6 Wh); Dual 18000 mAh (907.2 Wh) Same Connectivity & I/O Parameter A2 (Standard) A2-PRO Wireless Wi-Fi 6, Bluetooth 5.2 Same Audio Speaker; microphone array Same Lights Front light Front light Optional modules Vector-follow (optional), GPS (optional), 4G (optional) Vector-follow (optional), GPS (optional), 4G (optional) Interfaces RS485×2, CAN×2, GbE×2, USB-C (CPU)×2, USB-C (i7)×2; power out 12V/24V/BAT Same Sensing & Compute Parameter A2 (Standard) A2-PRO Sensors 1× LiDAR + 1× HD camera 2× LiDAR + 1× HD camera Onboard compute 8-core high-perf CPU (platform) + Intel Core i7 (user dev) Same (high-compute dock optional) Performance Parameter A2 (Standard) A2-PRO Operating temp −20 °C ~ 55 °C −20 °C ~ 55 °C Endurance / range (no-load) >5 h no-load (~20 km) >5 h no-load (~20 km) Endurance / range (25 kg) >3 h with 25 kg (~12.5 km) >3 h with 25 kg (~12.5 km) Max standing load ≈100 kg ≈100 kg Continuous walking load ≈25 kg ≈25 kg Slope capability ≈45° ≈45° Stairs Max step height 30 cm 30 cm Max climb height ≈0.5–1 m ≈0.5–1 m Speed 0–3.7 m/s (up to ~5 m/s) Same Wheel-leg kit Optional Optional Protection & Support Parameter A2 (Standard) A2-PRO Ingress rating IP56 IP56–IP67 (core components IP67) Updates & SDK Smart OTA; secondary development supported Same
