BLDC MotorHobbywing XRotor multirotor / agricultural motors · Ø87.1 mm

XRotor M8108 Light 150KV

Name: XRotor M8108 Light 150KV
Brand: Hobbywing

8108 150 KV drone motor from Hobbywing for 6S LiPo: up to 5500 g thrust.

Manufacturer datasheet: Hobbywing · XRotor M8108 Light 150KV ↗ (checked 2026-10-18)Maker profile & contacts →

Figures are copied from the maker’s published datasheet; curves are calculated from them. Confirm with the manufacturer before ordering. Not stated on the datasheet, estimated from it: rated point (estimated from KV, voltage and maximum current), inductance, rotor inertia, insulation class, IP rating.

Applications:Drones & UAV

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How this motor is made

Full manufacturing overview: 70 mm Outer-rotor BLDC Motor →

Ø87.1 mm frame; built with the same process as the 70 mm outer-rotor reference series.

Assembly steps: 12
Equipment types: 14
BOM lines: 13
PRD suppliers: 85

1. Stator lamination stamping & interlocking
2. Stator powder coating
3. Outer-stator winding
4. Terminal soldering
5. Stator in-process test
6. Trickle impregnation (optional)
7. Stator mounting & Hall board
8. Rotor cup assembly
9. Magnetizing
10. Rotor balancing
11. Final assembly
12. End-of-line test

Export certification: Low-voltage motor without electronics

Rated power: 328 W
Rated torque: 1 N·m
Rated speed: 3,116 rpm
Rated efficiency: 85.9 %

Performance curves

Right axis:

SpeedEfficiency (right axis)

Calculated with the linear DC-motor model (constant 22.2 V supply, ignoring resistance rise with temperature).

Full specifications

General

Motor type: BLDC Motor
Series: Hobbywing XRotor multirotor / agricultural motors
Frame / flange: Ø87.1 mm

Rated Values

Rated voltage: 22.2 V
Rated power: 328 W
Rated torque: 1 N·m
Rated speed: 3,116 rpm
Rated current: 17.2 A

Performance

Stall torque: 17 N·m
No-load speed: 3,312 rpm
Rated efficiency: 85.9 %
Peak efficiency: 86 %

Electrical

Torque constant Kt: 0.0637 N·m/A
Back-EMF constant Ke: 6.67 V/krpm
Resistance: 0.0828 Ω
Inductance: 0.124 mH
No-load current: 1.41 A
Stall current: 268 A
Poles: 42
Electrical time constant: 1.5 ms
Mechanical time constant: 0.452 ms

Mechanical

Rotor inertia: 221 g·cm²
Body length: 25.4 mm
Weight: 0.243 kg
Power density: 1,351 W/kg
Insulation class: B
Protection: IP40

Compatible drivers

All drivers →

Drivers whose supply voltage covers this motor and whose continuous current is at least its rated current; drivers from the same maker first. Confirm Hall/encoder type and settings with the maker.

Model	Maker	Motor type	Supply	Cont. / peak current	Feedback
BLDA0401A1	Motion Control	BLDC	12–55 V DC	18 A
PSDB-4031A1	Motion Control	BLDC	12–55 V DC	18 A
NU-BL5020-01	Nuelectronics	BLDC	18–50 V DC	20 A / 25 A	Hall sensors, Sensorless, Open loop, Closed loop
NU-BL5020-02	Nuelectronics	BLDC, Servo	18–50 V DC	20 A	Hall sensors, Incremental encoder
DCPC-09030-OPE	ZP Motors	BLDC, Servo	18–90 V DC	21 A / 42 A	Hall sensors, Incremental encoder
ZM-BL24Z30S	Zeming	BLDC	18–32 V DC	30 A	Hall sensors, Sensorless