China Suppliers Factory Sale: 22L Automatic UAV Drones for Agriculture Spraying with Enhanced Precision and Efficiency
Product Introduction
Over the farmland, agricultural drones are like intelligent painters equipped with "electronic eagle eyes", completing spraying operations with millimeter-level control accuracy that is comparable to surgical operations. Its RTK differential positioning system can achieve centimeter-level positioning, and with binocular visual obstacle avoidance radar, it can scan the height of crop canopies in real time during flight, so that the nozzle and the leaf surface always maintain the optimal atomization distance of 0.8-1.2 meters - this distance can ensure the uniform adhesion of droplets and avoid the drift and waste of liquid medicine.
With high-precision sensors and intelligent navigation systems, agricultural drones can accurately sense farmland topography, crop growth conditions and other information, thereby achieving precise quantitative spraying of pesticides and fertilizers. It can adjust the dosage and range of spraying according to the needs of crops in different regions, avoiding problems such as missed spraying and repeated spraying that may occur in traditional spraying methods, which not only improves resource utilization efficiency but also reduces environmental pollution.
Specification parameters
| Parameter | Value |
|---|---|
| Model | AL4-22 |
| Pesticide Tank | 22L |
| Structure | Umbrella foldable |
| Net weight | 19.5 kg |
| Take-off weight | 55 kg |
| Battery capacity | 14s 22000 mAh*1pc |
| Spray speed | 0-10 m/s |
| Spray width | 7-9 m |
| Nozzle No. | 8 pcs |
| Spray flow | 3.5-4 L/min |
| Spray efficiency | 9-12 hectares/h |
| Wind resistance | 10m/s |
| Drone Spread size | 2025*1970*690 mm |
| Drone Folded size | 860*730*690 mm |
High pressure nozzle operation mode
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High-pressure nozzle
The high-pressure nozzle relies on a plunger pump or a diaphragm pump to pressurize the liquid medicine to 0.5-2MPa, and sprays it out at high speed through a nozzle with a tiny aperture (0.3-1mm), forming a high-kinetic energy penetrating mist flow. Its core advantage lies in the efficient coverage of complex scenes.
-

Centrifugal nozzle
The centrifugal nozzle generates centrifugal force through the high-speed rotating impeller, which throws out the liquid medicine and breaks it into uniform droplets. The core advantage lies in the precise and controllable atomization effect and the uniform droplet size (50-200μm). By adjusting the impeller speed (usually 3000-10000 rpm), the droplet size can be accurately controlled to avoid the uneven droplet problem caused by pressure fluctuations in traditional high-pressure nozzles.
Centrifugal nozzle operation

Suitable for a variety of scenarios, efficient and convenient work
Choose our brand to meet your needs for smart agriculture
Final inspection before shipment


Customers Feedback

Frequently Asked Questions
Q1: What is the positioning accuracy of the agricultural drone?
A1: The drone utilizes an RTK differential positioning system to achieve centimeter-level positioning accuracy, ensuring high-precision flight paths.
Q2: How does the binocular visual obstacle avoidance radar work?
A2: The radar scans the height of crop canopies in real time during flight, allowing the drone to maintain the optimal atomization distance and safely bypass obstacles.
Q3: What is the optimal spraying distance from the crop canopy?
A3: The nozzle and the leaf surface should maintain an optimal atomization distance of 0.8 to 1.2 meters to ensure uniform droplet adhesion and prevent drift.
Q4: What are the main differences between high-pressure and centrifugal nozzles?
A4: High-pressure nozzles pressurize liquid to 0.5-2MPa for high-kinetic energy penetration in complex scenes. Centrifugal nozzles use rotating impellers (3000-10000 rpm) to break liquid into uniform droplets (50-200μm) for precise and controllable atomization.
Q5: What is the efficiency and capacity of the AL4-22 drone model?
A5: The AL4-22 model features a 22L pesticide tank, has a spray width of 7-9 meters, and operates at a spraying efficiency of 9-12 hectares per hour.
Q6: How does the drone handle wind resistance during operation?
A6: The drone is designed with high wind resistance of up to 10m/s, ensuring stable flight and consistent spraying performance under challenging weather conditions.





