X2812 900KV Brushless Motor – 950W for 8" FPV 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)
2~6S
1
10500
9450
40
8000
1350
12N14P
950
50
TEST REPORT
Volts (V)
Propeller
Throttle
Amps (A)
Watts (W)
Thrust (G)
Speed (RPM)
Efficiency (G/W)
Motor temperature(℃)
电压
桨
油门
电流
功率
拉力
转速
力效
电机温度
11.1V
900kv
9450
30%
0.9
10.0
100
2760
10.01
80℃ 10min
50%
3.2
36.0
300
4600
8.45
60%
6.2
69.0
500
5520
7.27
80%
8.0
89.0
600
7360
6.76
100%
10.2
113.0
720
9200
6.36
OUTLINE DRAWING
X2812 900KV Brushless Motor – 950W for 8" FPV Drone & Fixed-Wing Aircraft
Ultra-lightweight 900KV design for 8" propellers, FPV racing drones, fixed-wing UAVs, and lightweight aerial platforms
🏆 Peak Efficiency: 10.01 g/W at 30% Throttle | Weight: 50g1. Product Overview
The X2812 900KV is a compact, high-efficiency brushless DC motor designed specifically for 8-inch multi-rotor drones, FPV racing drones, and fixed-wing UAVs.
With a maximum power of 950W and a KV rating of 900KV, this motor delivers solid thrust (up to 720g) at an ultra-lightweight 50g – achieving a 14.4:1 thrust-to-weight ratio. Most notably, it delivers an exceptional peak efficiency of 10.01 g/W at low throttle, making it ideal for long-endurance lightweight platforms.
Built on a 12N14P magnetic design with high-quality materials, this motor delivers smooth rotation, reliable performance, and excellent efficiency for demanding FPV and fixed-wing applications.
At a glance: The X2812 900KV delivers 720g thrust at 950W while weighing just 50g – with a remarkable 10.01 g/W peak efficiency at low throttle.Key Applications:
- 8" FPV racing drones
- Fixed-wing lightweight UAVs
- Sub-250g long-range drones
- Lightweight aerial photography platforms
- Indoor/outdoor proximity FPV
2. Technical Specifications
Parameter Value Model X2812 KV Rating 900 KV Voltage Range 2~6S LiPo (up to 22.2V) No-Load Current 1.0 A No-Load Speed 10,500 RPM Maximum Power 950 W Maximum Load Current 40 A (with 9450 propeller) Maximum Thrust 720 g Recommended Propeller 9450 (9x4.5) / 8x4 or 8x5 two-blade Motor Configuration 12N14P (12 slots, 14 poles) Motor Weight 50 g Operating Temp (max) ≤80°C under typical load 3. Performance Test Report
Test condition: 11.1V input (≈3S), 9450 propeller (9x4.5), ambient temp 25°C
Throttle Amps (A) Watts (W) Thrust (G) Speed (RPM) Efficiency (G/W) Temp (10 min) 30% 0.9 10.0 100 2760 10.01 80°C 50% 3.2 36.0 300 4600 8.45 - 60% 6.2 69.0 500 5520 7.27 - 80% 8.0 89.0 600 7360 6.76 - 100% 10.2 113.0 720 9200 6.36 - - Exceptional peak efficiency of 10.01 g/W at 30% throttle – ideal for cruising and long-endurance flight
- 8.45 g/W at 50% throttle for balanced performance
- Maximum thrust of 720g at full throttle
- Note: 3S test shows moderate power; using 4S-6S will unlock full 950W potential
4. Key Applications
The X2812 900KV is field-proven for:
- 8" FPV Racing Drone – 900KV provides responsive control with lightweight 50g design
- Fixed-Wing Aircraft – Excellent efficiency (10.01 g/W) for extended flight times
- Sub-250g Long-Range Drones – 50g motor leaves room for battery and electronics under 250g
- Lightweight Aerial Photography – Smooth throttle response and low vibration
- Indoor/Outdoor Proximity FPV – Compact size with reliable power delivery
5. Why Engineers Choose X2812
Feature Benefit 10.01 g/W peak efficiency Industry-leading efficiency for lightweight 8" platforms 900KV high-speed design 9,200 RPM max speed at 3S (higher with 4S-6S) Ultra-lightweight 50g 14.4:1 thrust-to-weight ratio 2~6S wide voltage range Works with 2S for training to 6S for high performance 12N14P stator design Smooth torque, reduced cogging Key takeaway: At just 50g with 10.01 g/W peak efficiency, the X2812 900KV is one of the most efficient motors in the 8" class. Perfect for sub-250g builds, long-range FPV, and lightweight fixed-wing 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-quality bearings and copper windings, this motor provides durability and consistent performance for FPV and fixed-wing applications.
For OEM orders, we provide individual test reports and material certificates upon request.
7. Frequently Asked Questions
What propeller is recommended for X2812 900KV?The test report used 9450 (9x4.5) propeller. For 8" builds, we recommend 8x4 or 8x5 two-blade or 8x4.5 three-blade props. For fixed-wing applications, a folding propeller of similar size works well.
What battery voltage should I use?Voltage range is 2~6S. Our test report used 11.1V (≈3S) for efficiency testing. For maximum power (950W), use 4S~6S (14.8V~22.2V). The motor is very efficient at lower throttle settings regardless of voltage.
What is the maximum continuous current?For continuous operation on 4S-6S, we recommend ≤20A (≈60-70% throttle). Brief peaks up to 40A are acceptable for takeoff and punch-outs.
What makes X2812 different from X3112?The X2812 has a smaller 28mm stator (vs 31mm on X3112), making it lighter (50g vs 91g). It's optimized for 8" props and lower power (950W vs 1545W), ideal for smaller FPV drones and sub-250g builds. X3112 is for 9-10" applications.
Is this motor suitable for sub-250g drones?Yes. At 50g, the X2812 is an excellent choice for sub-250g builds. Paired with a 4S 650mAh battery (≈70g) and lightweight frame (≈50g), you can easily stay under 250g total weight.
How does X2812 compare to other motors in the series?X2812 (900KV) = 8" props, 50g, 950W, 10.01 g/W peak.
X3112 (900KV) = 9" props, 91g, 1545W, 4.35 g/W peak.
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.Do you provide custom winding (other KV)?Yes. KV can be customized from 600KV to 1200KV for the X2812 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 4mm / 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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