DJI Agras T40
The DJI Agras T40 has a 40L tank, omnidirectional radar and a spread system for fertilizers. 16 ha/h efficiency, DJI's best-selling ag drone. Specs and prices.
Price (USD)
$22,000
Full Specifications
| Weight | 35.3 kg (loaded with 40L) |
| Flight Time | Payload-dependent |
| Max Speed | 15 m/s (work mode) |
| Obstacle Avoidance | Omnidirectional radar (front + rear + bottom) |
| Wind Resistance | Level 7 (38 mph) |
| GPS | GPS + GLONASS + BeiDou + RTK |
| Payload | 40 L (liquid) or 50 kg (solid) |
| Tank Capacity | 40 L (liquid) / 50 kg (solid) |
| Wingspan | 2,250 mm (arms expanded) |
The DJI Agras T40 is one of the best-selling agricultural drones worldwide, with a price of approximately $22,000 for the base unit. Launched in October 2022, the T40 found the operational balance the agricultural market needed: 40-liter tank, 20-meter spray width, omnidirectional radar for safe operation in obstacle-laden fields, and support for both liquid applications and solid granular spreading.
The T40's payload — its maximum lift capacity — is 40 liters of liquid spray solution, or up to 50 kg of dry granular material when configured for spreading. This 40L/50kg lift capacity, combined with its $22,000 price, positions the T40 as the mid-tier model in DJI's Agras lineup, above the smaller T25 and below the flagship T50 (see comparison below).
For mid-to-large scale farming operations looking to bring drone application in-house rather than contracting third-party services, the T40 represents one of the most balanced cost-efficiency points available.
Spray System: 40L and 20m Width
The T40's spray system delivers approximately 16 hectares per hour of operational efficiency, making it approximately 30–40× faster than manual backpack spraying. The 20-meter effective swath width, achieved with the active phased array radar guiding boom extension, covers more ground per pass than the T25's 9-meter swath, reducing the number of flight lines required to cover a field.
Omnidirectional Radar
Unlike the T25's front-and-rear radar, the T40 has omnidirectional radar coverage including bottom detection. This enables safer operation in fields with terraced borders, irrigation channels, power poles, and other lateral obstacles that the T25's limited detection might miss.
The radar also enables terrain-following mode: the aircraft automatically adjusts altitude to maintain a consistent spraying height above the crop canopy even over undulating terrain, critical for uniform application rates.
Dual Function: Liquid and Granular
With a payload swap, the T40 operates as a granular spreader supporting fertilizers, seeds, and granular pesticides up to 50 kg per load. This dual-function capability extends the drone's utilization beyond just spraying operations.
Agras T40 vs T25 vs T50
| Model | Price | Payload (liquid / solid) | Spray width | Efficiency |
|---|---|---|---|---|
| Agras T25 | ~$13,000 | 25 L / 25 kg | 9 m | ~10–12 ha/h |
| Agras T40 | ~$22,000 | 40 L / 50 kg | 20 m | ~16 ha/h |
| Agras T50 | ~$33,000 | 50 L / 70 kg | 24 m | ~21.6 ha/h |
The T40 sits between the entry-level T25 and the flagship T50 on every metric: price, payload, spray width, and efficiency. For operators managing 200–800 hectares who don't need the T50's maximum throughput but have outgrown the T25's smaller tank, the T40's lift capacity and price point typically deliver the best cost-per-hectare balance. Operations above roughly 1,000 hectares under management tend to justify the T50's higher price with its wider swath and greater hourly efficiency.
Sources: DJI Agriculture: Agras T40