DJI’s Agras T40 is a high‑capacity agricultural drone built around a coaxial twin‑rotor design that supports both precision spraying and granular spreading in a single platform. It combines a 40 L liquid operation box (40 kg operating payload) with a 70 L spreading tank (50 kg internal load), dual‑atomized centrifugal sprinklers for uniform droplet control, and an advanced sensing suite (Active Phased Array Radar plus Binocular Vision) for 360° obstacle awareness and terrain following. Core modules carry an IPX6K protection rating for harsh‑environment durability, while O3 Pro transmission with RTK delivers centimeter‑level positioning for repeatable, data‑driven operations. A dedicated high‑output generator enables rapid battery turnarounds to keep acreage rates high.
Advantages
High throughput for spraying and spreading in one aircraft (40 L spray, 70 L/50 kg spread) to reduce mission swaps and increase productivity.
Dual‑atomized sprinklers produce uniform droplets with a wide 50–500 μm range to match crop, chemical, and drift‑control needs.
Omnidirectional radar plus binocular vision provide 360° awareness, terrain following up to 30° slopes, and enhanced safety around obstacles.
RTK positioning and O3 Pro link support precise, repeatable application paths and robust command/video range for large fields.
Ruggedized design with IPX6K‑rated core modules and magnetic‑drive pump that isolates chemicals for durability.
Fast battery turnarounds (about 9–12 minutes per pack with the dedicated generator) sustain high acreage rates during peak season.
Integrated DJI Terra/RC mapping workflow enables surveying, prescription generation, and execution within the same ecosystem.
Disadvantages
Short endurance at maximum payload (approximately 6–7 minutes per sortie), requiring careful mission planning and multiple batteries.
Large size and mass (up to 90–101 kg TOW) demand ample staging space and trained crews for safe operations.
Modest wind tolerance (about 6 m/s) can limit spraying windows in breezy conditions.
Availability varies by region and channel; many purchases are via authorized dealers rather than direct DJI online sales.
Total system cost can be significant once batteries, charger/generator, and spreading kit are included.
Technical Specs
Spray payload (liquid):40 L operation box; 40 kg operating payload
Spread payload (granular):70 L tank volume; 50 kg internal load; 7 m spread width (scenario‑dependent)
Droplet size (dual‑atomized):50–500 μm
Max effective spray width:Up to 11 m (at ~2.5 m AGL, 7 m/s)
Water pump:Magnetic‑drive impeller, max flow 6 L/min × 2
Sensing suite:Active Phased Array Omnidirectional Radar RD2484R (1.5–50 m, 360° H, ±45° V) + Backward/Downward Radar RD2484B (rear 1.5–30 m; altitude detection 1–45 m) + Binocular Vision (0.4–25 m)
Positioning & link:RTK (GPS L1/L2, GLONASS F1/F2, BeiDou B1/B2, Galileo E1/E5); O3 Pro video/command link up to 7 km (FCC)
Airframe weight:38 kg (without battery); ~50 kg (with battery)
Max takeoff weight:Spraying: 90 kg (sea level); Spreading: 101 kg (sea level)
Rotor/propulsion:8 rotors; 54‑inch props; 4,000 W per rotor motors
Hover time (reference):~18 min no payload (50 kg TOW); ~7 min spraying at full payload (90 kg TOW); ~6 min spreading at full payload (101 kg TOW)
Environmental protection:Core modules IPX6K
Intelligent flight battery:BAX601 30,000 mAh, 52.22 V; ~12 kg
Generator (charging):D12000iE inverter generator; 9–12 min to charge one T40 battery; 30 L fuel tank; up to 12,000 W output; EFI option claims ~15% fuel saving
Controller/display:RC with 7.02‑inch 1920×1200, 1200‑nit screen; Wi‑Fi 6; Bluetooth 5.1; operating temp −20° to 50°C
GNSS/RTK accuracy:With RTK enabled: ±10 cm horizontal/vertical (reference conditions)