hobbywing
Hobbywing X11 MAX Multi-Rotor Aircraft Power System Kit
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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.
FAQS
1. HOW DO I PLACE MY ORDER?
- Simply choose your style on the product page then click the “Add To Cart” button and follow the simple steps to complete your order.
- We’ll prepare your order and let you know when it's on its way!
2. HOW LONG WILL IT TAKE TO SHIP MY ORDER?
- Orders typically ship within 5 to 10 business days. For international orders, transit will take an additional 1 to 2 weeks.
3. MY TRACKING NUMBER ISN’T WORKING
- Tracking numbers can take 3-5 days to appear in the shipping carrier's system. Occasionally, the shipping carrier can lose an order. If the tracking number is still not working within a few days, please contact the shipping carrier.
4. I NEED HELP WITH A LATE ORDER
- Orders typically ship within 5 to 8 business days. For international orders, transit will take an additional 1 to 2 weeks.
- If your order has not arrived after 10 business days (domestic) and 20 business days (international), please contact our team, we are happy to assist.
- Products that need to be customized, production time is 10-25 days to ship, product details will be announced.
5. We accept the following secure payment methods:
Credit Cards (via Airwallex):
- Visa / Mastercard / American Express
- Secured by Airwallex, a global compliant payment platform
Third-Party Payments:
- PayPal (Personal & Business Accounts)
Bank Transfer:
- Corporate Account Transfer (SWIFT/IBAN Supported)
6. WHEN WILL MY CARD BE CHARGED?
Just after your order has been successfully placed.
7. HOW SECURE IS MY PERSONAL INFORMATION?
- We adhere to the highest industry standards to protect your personal information when you checkout and purchase.
- Your credit card information is encrypted during transmission using secure socket layer (SSL) technology, which is widely used on the Internet for processing payments. Your credit card information is only used to complete the requested transaction and is not subsequently stored.
7.Shopping safety guaranteed
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8.What delivery?
We cooperate with DHL, FedEx, EMS shipping companies, you can choose freely when placing orders;
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- FedEx :https://www.fedex.com/
- EMS:https://www.ems.com.cn/
- Logistics Tracking:https://www.uavmodel.com/apps/17TRACK
9.Refund issue?
Due to the buyer's own reasons, resulting in a refund. This website will not be responsible for the payment of processing fees including returning shipping cost.
Made-to-order products: Once a customer submits an order, the product will immediately go into production. Given its customized nature and the immediacy of production, such orders become binding upon confirmation and no refunds will be accepted.
All products that require production time are classified as customized products.
10、Answer: Customs clearance responsibility depends on trade terms (e.g., EXW, FOB, DDP). Generally:
- Our Default Terms: The customer (consignee) must handle clearance and pay all duties/taxes.
- Exceptions: If your order states "DDP (Delivered Duty Paid)", we will handle clearance.
11、Answer: Typically required documents:
- ID (e.g., passport) or business tax number;
- Commercial invoice (contact us after purchase);
- Tip: Contact your local customs in advance!
12、Answer: Duties are determined by your country’s customs based on product type, value, and regulations. To estimate costs:
- Check your local customs website;
- Use third-party tools (e.g., Avalara, DutyCalculator).
13、Answer:
- Delays: Contact customs directly to submit documents/payments. We can provide tracking numbers or invoices.
- Destruction: Losses due to unresponsive clearance will be borne by the customer.
- Exceptions: If caused by our documentation errors, contact us for support.
14、Answer: You will receive a commercial invoice and packing list via email. For other documents, contact sales@uavmodel.com (response within 24 hours).
15、Answer: The following products may be seized or rejected:
- Prohibited items in your country (e.g., cosmetics with banned ingredients);
- Products without required certifications (e.g., electronics lacking CE marks);
- Under-declared value (may raise tax evasion suspicions).
If you pay by credit card, your payment could be somehow denied at the checkout by our system in defense against possible credit card fraud. It's a good idea to call your credit card company or bank ahead of time to let them know about the purchase so that it doesn't get declined.
Under such circumstance, here are 3 solutions for you:
1. If you have a PayPal account, please try to pay by PayPal.
2. Please switch to your other credit/debit cards.
3. If you do not have a PayPal account, please select PayPal still at the checkout page & click the complete order button. Then you'll be directed to a page with access to both PayPal and Debit/Credit card payment (for the latter option, you don't have to register for PayPal).
As following steps:
Step 1. Select PayPal (even if you don't have a PayPal account)

Step 2. Click on "Pay with Debit or Credit Card".

Step 3. Fill in your credit card info and complete your order.

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Holder Name: Xiamen Gaoteng Trading Co., Ltd.
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UAVMODEL
Ownership:
UAVMODEL CO., LTD.;
ZHANGZHOU YICHENG TECHNOLOGY CO., LTD.;
XIAMEN GAOTENG TECHNOLOGY CO., LTD.
Email:Sales@uavmodel.com
Phone: +8613015671328
313, No.25, Jingxia Road, Wenpu Industrial Park, Jiaomei Town, Taiwan Investment Zone,
Unit 2502-3, No.1110, Jimei North Road, Software Park, Torch High-tech Zone, Xiamen

What we really do?
UAVMODEL is a leading UAV airframe manufacturer. Our UAV platforms serve professional needs in industrial inspection, gas and oil, precision agriculture, mapping, public safety, construction, forestry and defense.
10+ Years of Experience
500+ Successful Cases
12+ Industry Awards
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We are committed to the R&D of medium and large UAVs and specialized UAV technologies for complex environments. Our focus includes design, production, testing, sales, and service, providing comprehensive solutions based on our technology.
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