Overview
MUWEIDU K5028 Motor is a K Series mid-to-high speed brushless DC motor designed as a high-performance FOC servo motor. It features an integrated electric drive design with a built-in driver and magnetic encoder, supporting speed/position control and RS485 or CAN communication for robotics and automation projects.
Key Features
- High-performance FOC servo motor
- Integrated electric drive design (integrated motor + driver)
- Built-in driver and magnetic encoder
- Encoder precision upgraded from 14-bit to 18-bit
- Optimized motor cogging torque
- PWM input supported
- Lightweight design; flat structure with aviation-grade aluminum material
- High torque output; outer rotor paired with neodymium iron boron magnets
- PC-based parameter tuning / testing / firmware upgrade available
- Compatible with open-source development platforms including PC, MCU, PLC, industrial computer and Raspberry Pi
- Multiple control modes: Torque Mode, Speed Mode, Multi-Turn Control Mode, Single-Turn Position + Direction Mode, Incremental Position Mode (modes with speed limit are also provided)
- Multi-layer protection mechanisms
- Brake function reserved; Brake / Brake Release controls available
Specifications
| Model | K5028 (10/35) |
| Rated Voltage | 16V |
| Rated Current | 5.06A / 1.35A |
| Peak Power | 128W / 12W |
| Rated Torque | 0.26 N.m / 0.24 N.m |
| Peak Torque | 0.4 N.m / 0.53 N.m |
| Rated Speed | 2400 rpm / 440 rpm |
| Encoder | 18bit |
| Rotor Inertia | 202 gcm² |
| Motor Temperature Monitoring | YES |
| Control Modes | Speed/Position |
| Communication Protocol | RS485 or CAN |
| Overall Dimensions | Φ49mm×28.9mm |
| Weight | 137g |
Interface Definition
- ID SWITCH
- CAN/RS485
| Interface | Note |
|---|---|
| B/L | RS485-B or CAN-L |
| A/H | RS485-A or CAN-H |
| V- | Negative Power Supply |
| V- | Negative Power Supply |
| V+ | Positive Power Supply |
| V+ | Positive Power Supply |
| T | UART Transmitter |
| R | UART Receiver |
| G | Signal GND |
Applications
- Humanoid Robots
- Robotic Arms
- Exoskeletons
- Quadruped Robots
- AGV Vehicles
- ARU Robots
- Inspection Robot
- Handheld Camera
- LiDAR
- Gimbal Pod
Manuals
For wiring guidance, integration support, or documentation help, contact support@rcdrone.top or visit https://rcdrone.top/.
Details

MUWEIDU K5028 is a compact FOC servo motor with an integrated drive and upgraded 18-bit encoder for precise motion control.

An integrated motor + driver structure helps reduce wiring and keeps the assembly lightweight for robotic joints and gimbals.

Clear labeling for the ID switch and CAN/RS485 interface makes multi-motor setups and bench wiring more straightforward.

PC-based parameter tuning supports multiple control modes for faster setup, testing, and firmware updates during integration.
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