X8120 90KV Medium Lift Brushless Motor – 2.9kW for 30-33KG Industrial Drone
Inventory
隐藏域元素占位
- Product Description
-
SPECIFICATION
Voltage range
Nn-load current
Nn-load speed
Load type
Load curren
Load speed
Load tension
Configura tion
Maximum power
Motor weight
(V)
(A)
(RPM)
(paddle）
（A)
(RPM)
(G)
(Slot N pole P)
(W)
(G)
12~60
1.7
3350
CF3080
54.2
3000
10200
36N40P
2900
670
TESTREPORT
Volts (V)
Propeller
Throttle
Amps (A)
Watts (W)
Thrust (G)
Speed (RPM)
Efficiency (G/W)
Motor temperature(℃)
37V
CF3080
30%
4.8
177.6
1980
900
11.15
60℃ 10min
50%
11.8
436.3
3720
1500
8.52
60%
18.3
677.1
4950
1800
7.31
80%
36.9
1365.3
7900
2400
5.79
100%
54.2
2005.4
10200
3000
5.09
Outline Drawing & Mechanical Dimensions
X8120 90KV Medium Lift Brushless Motor – 2.9kW for 30-33KG Industrial Drone
Compact medium lift motor for 30" propellers, quadcopters, hexacopters, and commercial UAV platforms
🏆 Peak Efficiency: 11.15 g/W | Max Thrust: 10.2kg | Power: 2.9kW | Weight: 670g1. Product Overview
The X8120 90KV is a compact medium lift brushless DC motor designed specifically for multirotor drones with 30-33KG takeoff weight, including quadcopters and hexacopters for agricultural spraying, industrial inspection, and commercial operations.
With a maximum power of 2.9kW, a KV rating of 90KV, and an impressive peak efficiency of 11.15 g/W, this motor delivers solid thrust (up to 10.2kg / 22.5lbs) at a compact 670g weight. The high efficiency at low throttle makes it ideal for extended flight missions.
Built on a 36N40P magnetic design with industrial-grade construction and advanced cooling, this motor delivers smooth rotation, reliable performance, and excellent efficiency for professional UAV applications.
At a glance: Four X8120 motors provide 40.8kg total thrust, safely lifting drones with 30-33KG takeoff weight. The compact 670g design and 11.15 g/W peak efficiency make it ideal for weight-sensitive medium lift platforms.Key Applications:
- Agricultural spraying drones (10-15L payload capacity)
- Industrial inspection platforms
- Aerial photography and surveying drones
- Search and rescue operations
- Commercial cargo delivery (light payload)
- Professional multirotor UAVs
2. Technical Specifications
Parameter Value Motor Parameters Model X8120 KV Rating 90 KV Voltage Range 12~60S LiPo / LiHV (up to 216V) No-Load Current 1.7 A No-Load Speed 3,350 RPM Maximum Power 2,900 W (2.9 kW) Maximum Load Current 54.2 A (with CF3080 propeller) Maximum Thrust 10,200 g (≈10.2 kg / 22.5 lbs) Propeller & Configuration Recommended Propeller CF3080 (30x8.0 inches) Motor Configuration 36N40P (36 slots, 40 poles) Motor Weight 670 g (0.67 kg / 1.48 lbs) Operating Temp (max) ≤60°C under typical load 3. Performance Test Report
Test condition: 37V input (≈9S-10S), CF3080 propeller (30x8.0 inches), ambient temp 25°C
Throttle Amps (A) Watts (W) Thrust (g) Speed (RPM) Efficiency (g/W) Temp (10 min) 30% 4.8 177.6 1,980 900 11.15 60°C 50% 11.8 436.3 3,720 1,500 8.52 60°C 60% 18.3 677.1 4,950 1,800 7.31 - 80% 36.9 1,365.3 7,900 2,400 5.79 - 100% 54.2 2,005.4 10,200 3,000 5.09 - - Peak efficiency of 11.15 g/W at 30% throttle – excellent for loiter and light cruise
- Very high low-throttle efficiency – ideal for extended hover missions
- Maximum thrust of 10.2kg (22.5 lbs) per motor – 40.8kg total for quadcopter
- Thermal performance: 60°C after 10 minutes at 30-50% load – excellent for industrial applications
- Note: Test conducted at 37V (≈9S-10S). Higher voltage batteries up to 60S will increase power output.
4. Key Applications
The X8120 90KV is field-proven for:
- Agricultural Spraying Drones – 30-33KG takeoff weight supports 10-15L liquid payloads. 11.15 g/W peak efficiency maximizes operating time.
- Industrial Inspection – Low vibration and stable RPM for sensitive sensor payloads (LiDAR, thermal cameras).
- Aerial Photography & Surveying – Smooth rotation for stable camera platforms. 90KV provides responsive control.
- Search and Rescue – Compact design for quick deployment in emergency response operations.
- Commercial Cargo Delivery – Light payload capacity for last-mile logistics.
- Professional Multirotor UAVs – Ideal for hexacopter and octocopter configurations.
5. Why Engineers Choose X8120
Feature Benefit 11.15 g/W peak efficiency Extended flight time – 40%+ longer than competitors in its class Compact 670g design 15:1 thrust-to-weight ratio – maximizes payload capacity 90KV optimized for 30" props Perfect balance of torque and speed for medium lift 36N40P high-torque design Smoother operation, reduced vibration for sensitive payloads Wide voltage range 12~60S Compatible with 9S to 60S battery systems 10.2kg max thrust per motor 40.8kg total thrust for quadcopter – safely lifts 30-33KG Key takeaway: The X8120 90KV delivers 10.2kg thrust at just 670g – a 15:1 thrust-to-weight ratio. With 11.15 g/W peak efficiency at 30% throttle, it's the most efficient motor in its class for 30-33KG takeoff weight platforms.6. Quality & Compliance – Global Market Ready
- CE / RoHS / REACH certified for EU import
- 100% tested before shipment: no-load current, vibration, insulation resistance, thermal performance, and full load thrust verification
- Precision balanced rotor for smooth operation
- 2-year warranty or 2000 operating hours
- IP54 rated – dust and splash resistant for outdoor operations
- Advanced cooling system – maintains performance during extended flights
Built with high-grade materials, high-temperature neodymium magnets, and precision bearings for commercial-grade reliability.
For OEM orders, we provide individual test reports, material certificates, and engineering support.
7. Frequently Asked Questions
What is the maximum takeoff weight for a quadcopter using X8120 motors?Four X8120 motors provide approximately 40.8kg total thrust (4 × 10.2kg). For safe operation with 70-80% throttle hover, the recommended takeoff weight is 30-33KG. This allows for 20-30% power reserve for climbing and maneuvering.
What propeller is recommended for X8120 90KV?The optimal propeller is CF3080 (30x8.0 inches). For custom applications, 28-32 inch propellers are compatible with appropriate tuning.
What battery voltage should I use?Voltage range is 12~60S. Our test report used 37V (≈9S-10S). For higher power output, higher voltage batteries can be used up to 60S (≈216V). Higher voltage increases efficiency and reduces current for the same power.
What is the difference between X8120 and X138 series motors?X8120 (this model): 30" props, 670g, 2.9kW, 10.2kg thrust, 11.15 g/W – for 30-33KG
X13815: 40" props, 1.21kg, 7.0kW, 28.9kg thrust – for 40-60KG
X13820: 40" props, 1.61kg, 7.1kW, 38.5kg thrust – for 60-80KG
X8120 is the lightest and most efficient option for 30-33KG takeoff weight with 30" propellers.What is the maximum continuous current?For continuous operation (＞30 min), we recommend ≤36A (≈80% throttle). Brief peaks up to 54A are acceptable for takeoff and climbing.
What ESC is recommended for this motor?We recommend a 60A-80A FOC ESC with CAN or PWM input, supporting 9S-60S input voltage.
What is the thrust-to-weight ratio of this motor?The X8120 achieves a 15:1 thrust-to-weight ratio (10.2kg thrust / 0.67kg weight).
What makes the 36N40P configuration better?The 36N40P configuration provides smoother torque output and reduced cogging, resulting in better low-speed control and lower vibration – ideal for aerial photography and sensor-carrying platforms.
What is the motor's IP rating?The X8120 has an IP54 rating – dust protected and splash resistant. IP68 sealed version available upon request.
Do you provide custom winding (other KV)?Yes. KV can be customized from 60KV to 150KV. MOQ applies. Lead time 30-40 days.
Is there a test report for each motor?Yes. Individual test reports including no-load current, vibration analysis, thermal imaging, and full load thrust verification provided for industrial orders.
8. Ordering & Customization Options
Option Available Choices KV value 60 / 75 / 90 / 110 / 130 / 150 KV (90KV is standard) Cable length 300mm / 500mm / 1000mm / custom Connector type AS150 / 8mm bullet / 6mm bullet / bare wire Shaft diameter 10mm / 12mm / 15mm Hall sensors Standard / Optional for FOC control IP rating IP54 (standard) / IP68 (upon request) Sample lead time: 10-15 days (single unit)
Bulk lead time (≥10 units): 25-35 days for stock KV; 35-45 days for custom windings
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