The carbon fiber composite makes the D22L--4 both light and strong. And the D22L--4 also adopts a foldable design, which can be folded and disassembled, and the battery and fuel tank can also be quickly attached and detached, which not only makes the replenishment more efficient, but also saves space and cost for transportation. The folding technology makes the drone more convenient to transport. The 20L capacity achieves improved efficiency, making the best balance between effect and efficiency. The D22L--4 can spray 8 hectares per hour, completing a very scientific and efficient spraying operation. D22L--4 spray cans can carry up to 22L, and the spray width has been increased to 4-6m, . Four integrated motor and electrionic governor and eight high pressure nozzles with a maximum spray rate of 3-5L/min, and can achieve even spraying. The high-pressure nozzles make the sprayed pesticides more penetrating, so that the pesticides can penetrate into the crops and soil better, so that the pesticides can play a greater role, thereby saving the cost of pesticides. And also make the spraying more comprehensive and scientific, and make the spraying operation more efficient, thereby saving labor costs and pesticide costs, and completing high-efficiency and high-quality spraying operations.

For the 22L payload, the working efficiency can reach 8 hectares per hour. AB flight mode, intelligent flight plan, automatic flight mode, these intelligent flight modes are more convenient for the continuous spraying function of breakpoints, ensuring that the spraying is safe and reliable without repetition and leakage, AB flight mode, intelligent flight plan, automatic flight mode, these intelligent flight modes are more convenient for breakpoint continuous spraying function, ensuring no repeating, no leakage, safe and reliable spraying, ensuring higher work efficiency, saving more labor costs and pesticides cost. Not only that, the terrain following radar can monitor the surrounding environment in real time, which can make the UAV avoid obstacles in time, reduce unnecessary damage, and ensure the safety of flight. The FPV HD camera will transmit images to the high-definition screen of the intelligent remote control in real time, which can monitor the environment during flight in real time. At the same time, it is equipped with high-brightness spotlights to ensure the safety of night operations. The pesticide barrel of D22L--4 is not only detachable, but also washable and corrosion-resistant, which is very suitable for long-term spraying operations. Sturdy and durable carbon fiber propeller and arm also provide the foundation for longer operations, ensuring more efficient spraying by the drone.

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