X3112 900KV Brushless Motor – 1545W for 9" Drone & Fixed-Wing Aircraft
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)
3~6S
0.98
22500
HQ9*5-3R
61.2
15470
1530
12N14P
1545
91
TEST REPORT
Volts (V)
Propeller
Throttle
Amps (A)
Watts (W)
Thrust (G)
Speed (RPM)
Efficiency (G/W)
Motor temperature(℃)
25V
900kv
HQ9*5-3R
60%
17.8
445.0
10550
1936
4.35
55℃
70%
26.5
662.5
11959
2409
3.64
80%
37.8
945.0
13286
3023
3.20
90%
51.0
1277.5
14637
3675
2.88
100%
61.0
1530.0
15469
4050
2.65
OUTLINE DRAWING
X3112 900KV Brushless Motor – 1545W for 9" Drone & Fixed-Wing Aircraft
Ultra-lightweight 900KV design for 9" propellers, aerial drones, fixed-wing UAVs, and high-performance FPV platforms
🏆 Weight: 91g | Max Power: 1545W | Thrust-to-Weight: 44.5:11. Product Overview
The X3112 900KV is a high-performance brushless DC motor designed specifically for 9-inch multi-rotor drones, fixed-wing UAVs, and aerial drone platforms.
With a maximum power of 1545W and a KV rating of 900KV, this motor delivers exceptional thrust (up to 4050g) at an astonishingly low weight of just 91g – achieving a 44.5:1 thrust-to-weight ratio at full throttle.
Built on a 12N14P magnetic design with high-quality materials, this motor delivers smooth rotation, high speed (up to 22,500 RPM no-load), and reliable performance for demanding applications.
At a glance: The X3112 900KV delivers 4050g thrust at 1545W while weighing just 91g – the highest thrust-to-weight ratio in the X31 series.Key Applications:
- 9" aerial photography drones
- Fixed-wing high-speed UAVs
- FPV racing drones (5S-6S high performance)
- Lightweight 3D aerobatic aircraft
- Sub-250g class long-range drones (with appropriate propellers)
2. Technical Specifications
Parameter Value Model X3112 KV Rating 900 KV Voltage Range 3~6S LiPo (up to 25V) No-Load Current 0.98 A No-Load Speed 22,500 RPM Maximum Power 1545 W Maximum Load Current 61.2 A (with HQ9*5-3R propeller) Maximum Thrust 4050 g Recommended Propeller HQ9*5-3R (9x5 three-blade) Motor Configuration 12N14P (12 slots, 14 poles) Motor Weight 91 g Operating Temp (max) ≤55°C under typical load 3. Performance Test Report
Test condition: 25V input (≈6S), HQ9*5-3R three-blade propeller (9x5), ambient temp 25°C
Throttle Amps (A) Watts (W) Speed (RPM) Thrust (G) Efficiency (G/W) Temp (10 min) 60% 17.8 445.0 10550 1936 4.35 55°C 70% 26.5 662.5 11959 2409 3.64 - 80% 37.8 945.0 13286 3023 3.20 - 90% 51.0 1277.5 14637 3675 2.88 - 100% 61.0 1530.0 15469 4050 2.65 - - Peak efficiency of 4.35 g/W at 60% throttle – ideal for cruise flight
- Exceptional high-speed capability: 15,469 RPM at full throttle
- Maximum thrust of 4050g (≈4.1kg) at full throttle – 44.5:1 thrust-to-weight ratio
- Thermal performance: 55°C after 10 minutes at 60% load
4. Key Applications
The X3112 900KV is field-proven for:
- 9" Aerial Drone – 900KV provides responsive control for photography and inspection
- Fixed-Wing Aircraft – High RPM capability (15,469 RPM) for fast cruise speeds
- FPV Racing – Ultra-lightweight 91g design with 1545W power output
- 3D Aerobatic Aircraft – Fast throttle response and high torque
- Sub-250g Long-Range Drones – When paired with lighter propellers and 4S batteries
5. Why Engineers Choose X3112
Feature Benefit 4.35 g/W peak efficiency Good flight time for a high-performance 9" motor 900KV high-speed design 15,469 RPM max speed for fast aircraft Ultra-lightweight 91g 44.5:1 thrust-to-weight ratio – class-leading 12N14P stator design Smooth torque, reduced cogging ≤55°C at 60% throttle Safe for extended continuous operation 3~6S compatible Versatile battery options from 3S to 6S Key takeaway: At just 91g, the X3112 900KV delivers 1545W of power and 4050g of thrust – the highest power density in the X31 series. Perfect for weight-critical 9" fixed-wing and high-performance multi-rotor platforms.6. Quality & Compliance – US/EU Market Ready
- CE / RoHS / REACH certified for EU import
- 100% tested before shipment: no-load current, vibration, insulation resistance, and thermal performance
- Dynamically balanced rotor for smooth flight at high RPM
- 2-year warranty or 1000 operating hours
Built with high-grade Japanese bearings and copper windings, this motor provides durability and consistent performance for demanding applications.
For OEM orders, we provide individual test reports and material certificates upon request.
7. Frequently Asked Questions
What propeller is recommended for X3112 900KV?The optimal propeller is HQ9*5-3R (9x5 three-blade). For fixed-wing applications, a 9" folding propeller works well. Two-blade 9x6 or 9x7 props are also compatible. Avoid propellers larger than 9" to prevent over-current.
What battery voltage should I use?Voltage range is 3~6S. For optimal performance, we recommend 4S~6S (14.8V~22.2V). Our test report used 25V (≈6S). Higher voltage increases max RPM and thrust but also increases current draw.
What is the maximum continuous current?For continuous operation (＞10 min), we recommend ≤38A (≈80% throttle). Brief peaks up to 61A are acceptable for takeoff and climbing.
What makes X3112 different from X3115?The X3112 has a shorter stator (12mm vs 15mm on X3115), making it lighter (91g vs 113g). It delivers higher no-load RPM (22,500 vs 21,600) and is optimized for 9" props. X3115 is for 10" props. Choose X3112 for lighter builds and higher RPM requirements.
Is this motor suitable for sub-250g drones?Yes, when paired with a lighter 4S battery and smaller propellers (8x4 or 9x3), the motor itself at 91g leaves room for a lightweight airframe and electronics to stay under 250g. However, for typical racing setups, 250-400g AUW is more common.
How does X3112 compare to other motors in the series?X3112 (900KV) = 9" props, 91g, 1545W, 4.35 g/W peak, 44.5:1 thrust/weight ratio.
X3115 (900KV) = 10" props, 113g, 1416W, 6.89 g/W peak.
X4214 (360KV) = 11" props, 195g, 1312W, 7.57 g/W peak.
X4216 (600KV) = 12" props, 228g, 1560W, 10.3 g/W peak.
X4220 (500KV) = 13" props, 230g, 2899W, 4.9 g/W peak.
X3112 offers the best power-to-weight ratio for 9" applications.Do you provide custom winding (other KV)?Yes. KV can be customized from 600KV to 1200KV for the X3112 stator. MOQ applies for custom KV.
Is there a test report for each motor?We provide batch sample reports. For OEM orders, individual test reports (including RPM, current, thrust, temperature) are available with additional QC fee.
8. Ordering & Customization Options
Option Available Choices KV value 600 / 750 / 900 / 1050 / 1200 KV (900KV is standard) Cable length 200mm / 300mm / 500mm / custom Connector 3.5mm bullet / 4mm bullet / bare wire Propeller adapter 5mm shaft with M5 thread Shaft diameter 4mm / 5mm Hall sensor Optional for FOC control Sample lead time: 3–5 days
Bulk lead time (≥50 units): 15–20 days for stock KV; 25–30 days for custom windings
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