Core Overview
The X11MAX is a high-performance power system designed for heavy-duty agricultural drones, with the core positioning of "high thrust, long endurance, and high reliability." The kit integrates 48-inch high-performance carbon fiber folding propellers, an ESC utilizing FOC (Field-Oriented Control) vector control, and motors delivering a maximum thrust of 44kg per axis. It is an excellent match for agricultural drones. At a typical operating point of 20kg load per axis, the system efficiency reaches 7.8g/W, significantly reducing energy consumption, easily achieving long endurance, and meeting the demands for two continuous spray sessions of a 40L agricultural drone. Its design emphasizes reliability, featuring CAN+PWM dual throttle redundancy, IPX6/IPX7 ultra-strong protection, and intelligent fault storage functions, ensuring stable and safe operation in the complex and harsh environments of farmlands.
Core Technology Advantages
Extreme Performance and Efficiency
44kg High Thrust: Provides ample power reserve, ensuring heavy-load takeoff and climbing maneuverability.
7.8g/W Ultra-High Efficiency: Achieved at a standard operating weight of 20kg/axis, directly reducing energy consumption per unit area, extending endurance, and increasing daily coverage.
48-inch Carbon Fiber Propellers: Made of high-performance carbon fiber material, offering high strength, lightweight, good balance, and excellent propulsion efficiency.
FOC Vector Control ESC
Compared to traditional BLDC ESCs, it delivers faster, more linear throttle response.
Improves efficiency by 10% and reduces operating temperature by 10°C, making the system more efficient and durable.
CAN + PWM Dual Redundant Throttle
CAN digital throttle and PWM analog throttle signals can back up and complement each other, ensuring signal quality.
Maintains stable aircraft attitude and achieves smooth flight even in complex electromagnetic environments.
Outstanding Reliability Design
Ultra-Strong Protection: The ESC adopts a fully potted upside-down design, with local protection rating up to IPX7 and overall protection rating of IPX6. It effectively resists pesticide corrosion, dust, gravel, and rain, supporting direct cleaning.
Intelligent Protection: Built-in protection mechanisms such as throttle signal loss, over-current, stall, and voltage protection actively ensure flight safety.
Fault Storage: The ESC has built-in fault storage function. Data can be downloaded and viewed via the DataLink data box, digitizing fault data to aid in rapid problem identification and cause analysis.
Maintainability and Upgradability
Supports firmware upgrades via data connection for continuous performance optimization.
Usage Recommendations
- Strictly Follow Application Scope: This product is designed specifically for agricultural drones. It is strictly prohibited for use in industrial applications (such as firefighting, inspection) or manned aircraft. Relevant applications require purchasing dedicated power systems.
- Precise Matching and Installation: It is recommended to control the takeoff weight between 20-22kg per axis to obtain optimal energy efficiency. During installation, note that the applicable carbon tube outer diameter is 50mm.
- Battery Configuration: Must use 18S (LiPo) batteries, and ensure the battery cells are of high quality to match the system voltage (maximum allowable voltage 78.3V) and ensure safety.
- Make Good Use of Data Tools: Regularly use the DataLink data box to read ESC operation data and fault records for preventive maintenance and performance analysis.
Product Parameters
Basic Specifications
| Category | Parameter Item | Detailed Specification |
|---|---|---|
| Basic Parameters | Product Name | X11 Max |
| Maximum Thrust | 44kg/axis (70V, sea level) | |
| Recommended Takeoff Weight | 20-22kg/axis (70V, sea level) | |
| Recommended Battery | 18S (LiPo) | |
| Operating Environment Temperature | -20 ~ 50 ℃ | |
| Power System Weight | 2800g (including propellers) | |
| Protection Level | IPX6 | |
| Rated Input Power | 3100W | |
| Rated Output Power | 2670W | |
| Motor | KV Value | 60 rpm/V |
| Stator Size | 111 * 22mm | |
| Applicable Carbon Tube Outer Diameter | 50mm | |
| Bearings | Imported Waterproof Bearings | |
| ESC | Supported Battery | 18S (LiPo) |
| PWM Input Signal Level | 3.3V/5V | |
| Compatible Signal Frequency | 50-500Hz | |
| Working Pulse Width | 1050-1950us (Fixed throttle, does not support calibration) | |
| Maximum Allowable Voltage | 78.3V | |
| Maximum Allowable Current | 150A (Non-enclosed environment temperature <60℃) | |
| BEC | None | |
| Propeller | Diameter * Pitch | MFC 48x17.5 |
Test Data Table
| Throttle (%) | Thrust (g) | Current (A) | Input Power (W) | RPM | Efficiency (g/W) | Torque (N·m) | Output Power (W) | Motor Temp. (℃) |
|---|---|---|---|---|---|---|---|---|
| 33% | 7,475 | 9.0 | 622.6 | 1,273 | 12.0 | 4.16 | 555.3 | |
| 35% | 8,415 | 10.6 | 732.4 | 1,348 | 11.5 | 4.62 | 652.1 | |
| 37% | 9,405 | 12.4 | 856.5 | 1,424 | 11.0 | 5.11 | 761.1 | |
| 39% | 10,350 | 14.2 | 982.4 | 1,493 | 10.5 | 5.58 | 871.5 | |
| 42% | 11,830 | 17.2 | 1,192.7 | 1,595 | 9.9 | 6.32 | 1,055.4 | |
| 45% | 13,305 | 20.5 | 1,416.7 | 1,691 | 9.4 | 7.06 | 1,250.9 | |
| 48% | 14,975 | 24.4 | 1,686.0 | 1,792 | 8.9 | 7.91 | 1,485.0 | |
| 51% | 16,750 | 28.8 | 1,988.8 | 1,893 | 8.4 | 8.81 | 1,746.8 | |
| 54% | 18,580 | 33.5 | 2,317.8 | 1,989 | 8.0 | 9.74 | 2,029.0 | |
| 57% | 20,345 | 38.3 | 2,650.8 | 2,077 | 7.7 | 10.63 | 2,311.9 | |
| 60% | 21,920 | 42.8 | 2,961.2 | 2,151 | 7.4 | 11.42 | 2,573.0 | |
| 63% | 24,020 | 49.1 | 3,395.2 | 2,244 | 7.1 | 12.48 | 2,933.3 | |
| 66% | 25,765 | 54.6 | 3,774.7 | 2,318 | 6.8 | 13.36 | 3,243.7 | |
| 69% | 27,780 | 61.3 | 4,236.3 | 2,400 | 6.6 | 14.39 | 3,615.2 | |
| 72% | 29,930 | 68.8 | 4,759.7 | 2,484 | 6.3 | 15.48 | 4,027.7 | |
| 75% | 31,800 | 75.9 | 5,243.8 | 2,555 | 6.1 | 16.45 | 4,400.5 | |
| 78% | 33,630 | 83.1 | 5,746.7 | 2,623 | 5.9 | 17.40 | 4,777.7 | |
| 81% | 35,500 | 91.1 | 6,293.1 | 2,690 | 5.6 | 18.37 | 5,175.1 | |
| 84% | 37,405 | 99.7 | 6,887.2 | 2,756 | 5.4 | 19.37 | 5,590.0 | |
| 87% | 39,395 | 109.3 | 7,551.6 | 2,823 | 5.2 | 20.40 | 6,030.4 | |
| 90% | 41,710 | 121.4 | 8,386.0 | 2,895 | 5.0 | 21.58 | 6,543.0 | |
| 100% | 44,890 | 139.7 | 9,648.5 | 2,983 | 4.7 | 23.11 | 7,219.0 |
Test Conditions: Operating Voltage 70V (18S LiPo), Propeller MFC 48x17.5.
Frequently Asked Questions (FAQ)
Q: Can this kit be used for non-agricultural drones or manned aircraft?
A: No. This product is designed and tested specifically for agricultural drones. Industrial applications (such as firefighting, inspection) and manned applications require purchasing dedicated power systems. Otherwise, there are significant safety risks.
Q: What is the difference between IPX6 and IPX7 protection levels?
A: IPX6 can withstand strong water jet cleaning, IPX7 can be immersed in water for a short time (here refers to the ESC locally). This means the entire power system can handle splashes, rain, and even scenarios requiring cleaning in agricultural operations, but prolonged submersion is not recommended.
Q: How to troubleshoot if the ESC malfunctions?
A: You can use the dedicated DataLink data box to connect to the ESC and download the internal fault storage records. Digitized fault information (such as over-current, stall records) can help quickly identify whether the problem is with the power supply, signal, motor, or mechanical issues, greatly improving maintenance efficiency.
Q: Can the maximum payload exceed the recommended 20-22kg/axis?
A: The official recommended takeoff weight is based on the comprehensive optimum of endurance, temperature rise, and system lifespan. Short-term overload can be used for emergencies or special maneuvers, but long-term overload operation will significantly increase power consumption, cause overheating, severely shorten component life, and endanger flight safety. It is not recommended for regular use.
