Overview
The LKMTECH MG8008E-i9-V3 Motor is a high-power brushless motor with a high-precision planetary reducer and FOC driver for robotic actuation. It is designed for large output torque and high precision, and supports absolute position feedback via magnetic encoders.
Key Features
- High power brushless motor
- High precision planetary reducer
- High-performance FOC driver
- Drive input voltage: 12-60V
- CAN or RS485 communication
- Main control adopts 170M mainfrequency with 32-bit ARM
- 18bit single ring absolute encoder
- One calibration; zero position never lose; no need to find zero point with power lost
- Encoder configuration: 18 bit (Motor) & 14 bit (Reducer) magnetic encoder
- Dual temperature sensor interface; real-time monitoring of motor and driver temperature
- Supports motor tool software for parameter adjustment, testing, and firmware upgrade
- Supports open source development platforms such as PC, MCU, PLC, ICP, and RPi
Applications
- Humanoid robots
- Robotic arms
- Exoskeletons / wearable robots
- Quadruped robots / robot dog
- AGV vehicles / AGV car
- ARU robots
Specifications
| Parameter | 24V Version | 48V Version |
|---|---|---|
| Item Name | MG8008E-i9-V3 | MG8008E-i9-V3 |
| Rated Voltage | 24V | 48V |
| Max Speed | 112RPM | 220RPM |
| Rated Torque | 9 N.m | 10 N.m |
| Rated Speed | 78RPM | 178RPM |
| Rated Current | 4.6A | 4.9A |
| Max Power | 96W | 330W |
| Max Torque | 20 N.m | 20 N.m |
| Speed constant | 42 rpm/V | 41.4 rpm/V |
| Torque Constant | 0.22 N.m/A | 0.23 N.m/A |
| Turns | 17 | 17 |
| Winding Type | Y | Y |
| Phase Resistance | 0.74 Ω | 0.74 Ω |
| Phase Inductance | 0.59 mH | 0.59 mH |
| Motor Poles | 40 | 40 |
| Rotor inertia | 1550 | 1550 |
| Motor Temperature | YES | YES |
| Reducer Type | PG5509 | PG5509 |
| Reduction Ratio | 1:9 | 1:9 |
| Backlash | ≤6 arcmin | ≤6 arcmin |
| Bearing Rated Load | 1120 N | 1120 N |
| Motor Weight | 570 g | 570 g |
| Recommend Drive | DG60E | DG60E |
| Drive input Voltage | 12-60V | 12-60V |
| Communication | RS485 or CAN | RS485 or CAN |
| Communication Frequency | RS485: 500Hz (115200bps) / CAN: 2KHz (1Mbps) | RS485: 500Hz (115200bps) / CAN: 2KHz (1Mbps) |
| Encoder | 18 bit (Motor) & 14 bit (Reducer) magnetic encoder | 18 bit (Motor) & 14 bit (Reducer) magnetic encoder |
| Encoder Baudrate (RS485) | 9600, 19200, 57600, 115200, 230400, 406800, 1M, 2Mbps | 9600, 19200, 57600, 115200, 230400, 406800, 1M, 2Mbps |
| Baudrate (CAN) | 100K, 125K, 250K, 500K, 1M | 100K, 125K, 250K, 500K, 1M |
| Control Mode | Torque Loop (32KHz) / Speed Loop (8KHz) / Position Loop (4KHz) | Torque Loop (32KHz) / Speed Loop (8KHz) / Position Loop (4KHz) |
| Acceleration curve | Trapeziod acceleration | Trapeziod acceleration |
Interface Definition
| Interface | Note |
|---|---|
| A/H | RS485-A or CAN-H |
| B/L | RS485-B or CAN-L |
| V- | Negative power supply |
| V+ | Positive power supply |
| T | UART transmitter |
| R | UART receiver |
| G | Signal GND |
For product selection and integration support, contact support@rcdrone.top or visit https://rcdrone.top/.
Documents
Details

A compact integrated actuator built for high output torque and precision motion control in robotic joints.

The MG8008E-i9-V3 combines a brushless motor, precision planetary reducer, and FOC driver in one solution.

CAN or RS485 communication with a wide 12–60V input range helps simplify integration across control platforms.

Absolute magnetic encoder feedback supports repeatable positioning without re-homing after power loss.

Clear interface labeling plus dual temperature-sensor support enables reliable wiring and real-time thermal monitoring.

PC-based tool software supports tuning, testing, and firmware updates during development and commissioning.

Ideal for robotic actuation projects such as AGVs, robot arms, quadrupeds, and wearable robotics.
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