DJI Agras

The DJI Agras is a series of multirotor agricultural drones released by the Chinese technology company DJI. It was first released in 2015 with a 10 L (2.6 US gal) pesticide tank. Later models gradually increased tank capacity up to 100 L (26 US gal). The Agras was built for aerial application, and is also used for military applications and disease control.

DJI released the Agras MG-1 in November 2015. The first DJI drone designed for agriculture, the Agras MG-1 is a foldable octocopter (eight-rotor helicopter) with four XR11001 spray nozzles for aerial application and a 10 kg (22 lb) or 10 L (2.6 US gal) pesticide tank. The drone's sealed body features an integrated centrifugal cooling system for the motors with a filter to prevent intake of particles to reduce motor wear. Each spray nozzle is powered by a motor and can coordinate spray intensity with the drone's airspeed. The drone is capable of returning to a saved position after refilling its tank and recharging its battery. The Agras MG-1 is powered by a DJI MG-12000 battery, giving it a hover time of 24 minutes with a 12.5 kg (28 lb) takeoff weight or 10 minutes with a 22.5 kg (50 lb) takeoff weight.

The improved Agras MG-1S was released in November 2016, differing from its predecessor primarily in the addition of a forward/rearward obstacle avoidance system and the capability for both manual and automatic operations. The Agras MG-1S RTK was released alongside the standard MG-1S, differing in that it has a built-in real-time kinematic (RTK) positioning module. The Agras MG-1SA was released in November 2017 with a first-person view (FPV) camera.

The Agras MG-1P and MG-1P RTK were released alongside the MG-1SA in November 2017. The MG-1P series features an FPV camera like the MG-1SA, but also has four XR11001VS spray nozzles and is powered by a DJI MG-12000P battery, giving it a hover time of 20 minutes with a 13.8 kg (30 lb) takeoff weight or 9 minutes with a 23.8 kg (52 lb) takeoff weight.

The Agras T16 was released in December 2018 as the successor to the Agras MG-series. Unlike its predecessor, the T16 is a hexacopter with six motors driving foldable Model R3390 propellers, with its structure being redesigned to conform to the IP67 environmental rating. Tank capacity was increased to 16 L (4.2 US gal), with pesticides being spread via eight XR11001VS nozzles fed by four delivery pumps. The nozzles could also be swapped for the optional XR110015VS model, which increased spray rate from 3.6 L/min to 4.8 L/min. The T16 is capable of satellite navigation with GPS, GLONASS, and Galileo satellites, as well as BeiDou with RTK positioning enabled. The drone also features an FPV camera, an RD2418R digital beamforming (DBF) imaging radar, an obstacle avoidance system, and a 17500 mAh battery giving it a hover time of 18 minutes with a 24.5 kg (54 lb) takeoff weight or 10 minutes with a 39.5 kg (87 lb) takeoff weight.

An enlarged version, the Agras T20, was released in November 2020 with a tank capacity of 20 L (5.3 US gal) and an omnidirectional RD2428R radar. The T20 features eight SX11001VS nozzles with a flow rate of 3.6 L/min as standard, though optional SX110015VS (4.8 L/min flow rate) and XR11002VS (6 L/min flow rate) nozzles were also made available. Battery capacity was increased to 18000 mAh, giving the drone a hover time of 15 minutes with a 27.5 kg (61 lb) takeoff weight or 10 minutes with a 42.6 kg (94 lb) takeoff weight.

Two more models, the Agras T10 quadcopter and Agras T30 hexacopter, were released globally in August 2021 after being made available in China in late-2020. Both drones feature an omnidirectional RD2424R radar, a RD2414U top-view radar, and dual FPV cameras; one forward and one rear. The T30 was the flagship model, and features a 30 L (7.9 US gal) tank capacity and 16 SX11001VS nozzles with a flow rate of 7.2 L/min as standard, with optional SX110015VS nozzles (8 L/min flow rate) being offered as well as TX-VK04 nozzles (3.6 L/min flow rate) for use on fruit trees. The smaller T10 features an 8 L (2.1 US gal) tank capacity as standard, with an optional 10 L (2.6 US gal) tank being made available in some regions, and four XR11001VS nozzles with a flow rate of 1.8 L/min as standard, with optional XR110015VS nozzles (2.4 L/min flow rate) and XR11002VS nozzles (3 L/min flow rate) also being offered. The T30 is powered by a 29000 mAh battery giving it a hover time of 20.5 minutes with a 36.5 kg (80 lb) takeoff weight or 7.8 minutes with a 66.5 kg (147 lb) takeoff weight, while the T10 has a 9500 mAh giving it a hover time of 17 minutes with a 16 kg (35 lb) takeoff weight or 9 minutes with a 24.8 kg (55 lb) takeoff weight.

In November 2021, DJI released two improved models; the Agras T20P quadcopter and Agras T40 octo-quad. Both models are capable of using BeiDou satellites in both GNSS and RTK navigation modes and feature a gimballed FPV camera, a phased array radar system consisting of an omnidirectional RD2484R and backward/downward-looking RD2484B radar, and a pair of LX8060SZ spray nozzles. The T40, which replaced the T30 as the flagship model, features a tank with a 40 L (11 US gal) capacity and is powered by a 30000 mAh battery giving it a hover time of 18 minutes with a 50 kg (110 lb) takeoff weight, 7 minutes with a 90 kg (200 lb) takeoff weight, or 6 minutes with a 101 kg (223 lb) takeoff weight. The T20P has a 20 L (5.3 US gal) and is powered by a 13000 mAh battery, giving it a hover time of 14.5 minutes with a 32 kg (71 lb) takeoff weight, 7 minutes with a 52 kg (115 lb) takeoff weight, or 6 minutes with a 58 kg (128 lb) takeoff weight.