Product overview
The HOBBYWING M8108 Light is a propulsion component for industrial multirotor UAVs. Its outer rotor construction combines a CNC-machined 7075 aluminium support with a treated seamless steel housing and a laminated silicon steel core. The integrated support and shaft reduce the number of separate parts, while three M2.5×8 fasteners and washers secure the shaft tail. For installation planning, the motor occupies a diameter of 87.1 mm and a height of 25.4 mm, with separate mounting patterns for the aircraft structure and propeller.
Electrical selection depends on the winding version: the 85KV and 100KV motors use 12S LiPo, while the 150KV motor uses 6S LiPo. Each has 100 mm, 16 AWG leads, with weight including leads ranging from 237.4g to 242.8g. Recommended integration uses MSC propellers and the XRotor Pro H60A 14S controller, with an application thrust range of 2.5~3.5kg per axis. Maximum current ratings apply in a non-enclosed environment at ambient temperatures no higher than 25°C; the motor carries an IPX5 rating.
Specifications
| Specification | Value & conditions |
|---|---|
| Earlier name | M8108 ULListed for M8108 Light |
| Battery | 12S LiPoSpecified for M8108 Light |
| Recommended thrust | 2.5~3.5 kg/rotorManufacturer recommendation per rotor; listed with 12S LiPo and 85KV/100KV options |
| Product model | M8108 Light |
| Product application | Industrial multirotor drone motorManufacturer's stated application. |
| KV versions | 85KV; 100KV; 150KVDistinct versions listed in the M8108 Light basic specifications; performance figures must be matched to the relevant version and configuration. |
| Support and shaft design | Integrated support and shaftDesign described for the M8108 Light. |
| Magnetic circuit | Revised design addressing back electromotive force harmonicsManufacturer's design description. |
| Product | HOBBYWING M8108 Light industrial multirotor UAV motor |
| KV options | 85KV; 100KV; 150KV |
| Motor dimensions | Diameter 87.1 × height 25.4 mm |
| Stator dimensions | Diameter 81 mm |
| Stator construction | High-quality silicon steel laminations with rust prevention treatment and coating resistant to 180°C |
| Enamelled wire temperature grade | 200°C |
| Magnet temperature grade | 180°C |
| Winding insulation test | 500V ACAC withstand-voltage test. |
| Ingress protection | IPX5 |
| Slots and poles | 36 slots; 42 poles |
| Dynamic balancing standard | ≤10mgComplete motor. |
| Bearings | High-quality waterproof bearings |
| Output shaft diameter | / |
| Propeller mounting holes | 4×M3@D20mm+4×M4@D23mm |
| Motor mounting holes | 4×M4@D36mm |
| Rated battery configuration | 12S LiPo; 12S LiPo; 6S LiPo85KV; 100KV; 150KV, respectively. |
| No-load current | 0.91A; 1.19A; 1.41A85KV; 100KV; 150KV, respectively. |
| Maximum current | 20.8A; 33.8A; 27.8A85KV; 100KV; 150KV, respectively; non-enclosed environment at ambient temperature ≤25°C. |
| Maximum thrust | 7.2kg; 9.2kg; 5.5kg85KV; 100KV; 150KV, respectively. |
| Phase-to-phase resistance | 239.5 mΩ; 165.2 mΩ; 82.8 mΩ85KV; 100KV; 150KV, respectively. |
| Lead wire specification | 16 AWG |
| Lead length | 100 mm |
| Motor weight | 237.4g; 238.3g; 242.8gIncluding leads; 85KV; 100KV; 150KV, respectively. |
| Rated output power | 280.5WMaximum continuous output. |
| Propellers | MSC 28x9.2; MSC 29x9.5; MSC 30x9.8Recommended application pairing. |
| Electronic speed controller | XRotor Pro H60A 14SRecommended application pairing. |
| Application thrust range | 2.5~3.5kgRecommended single-axis application. |
| Maximum takeoff weight range | 10~14kgRecommended four-rotor application. |
| Support, shaft and retention | Integrated support and shaft; shaft tail secured with three M2.5×8 fasteners and washers |
| Rotor and core materials | Precision CNC-machined 7075 aluminium rotor support; outer rotor housing made from No. 20 seamless steel tubing with nickel plating and electrophoretic treatment; flexible silicone leads; core stamped from 0.2mm low-loss silicon steel |
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