MUWEIDU K9040 Motor K Series Brushless DC FOC Servo Motor 24V 18bit Encoder RS485/CAN Φ89×42mm
MUWEIDU K9040 Motor K Series Brushless DC FOC Servo Motor 24V 18bit Encoder RS485/CAN Φ89×42mm
MUWEIDU
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Overview
MUWEIDU K9040 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, and supports speed/position control for robotics and automation applications.
Key Features
- K Series mid-to-high speed brushless DC motor (servo motors)
- High-performance FOC servo motor
- Integrated electric drive design: built-in driver and magnetic encoder
- Integrated motor + driver design (high integration)
- Encoder precision upgraded from 14-bit to 18-bit; 18-bit single-turn absolute magnetic encoder with one-time calibration (zero position never lost)
- Optimized motor cogging torque
- PWM input supported
- Real-time motor stator temperature monitoring (motor temperature monitoring: YES)
- CAN or RS485 bus communication; supports direct control by PC, MCU, PLC, industrial computer, Raspberry Pi and Arduino
- High-performance 32-bit ARM main control with CORTEX-M4 core
- Full N-channel MOSFET three-phase full-bridge drive with low internal resistance and high current
- Precision current control via high-accuracy, low-temperature-drift alloy resistor sampling
- 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
- Multiple control modes shown: Torque Mode, Speed Mode, Multi-Turn Control Mode, Single-Turn Position + Direction Mode, Incremental Position Mode (including variants with speed limit)
- Brake function reserved (as shown in the PC tool interface)
Applications
- Humanoid robots
- Robotic arms
- Exoskeletons
- Quadruped robots
- AGV vehicles
- ARU robots
- Inspection robot
- Handheld camera
- LiDAR
- Gimbal pod
Specifications
| Model | K9040 (16/35T) |
| Rated Voltage | 24V |
| Rated Current | 7.03A / 3.34A |
| Peak Power | 120W / 55W |
| Rated Torque | 1.63 N.m / 1.67 N.m |
| Peak Torque | 3.4 N.m / 5 N.m |
| Rated Speed | 780 rpm / 290 rpm |
| Encoder | 18bit |
| Rotor Inertia | 3271 gcm² |
| Motor Temperature Monitoring | YES |
| Control Modes | Speed/Position |
| Communication Protocol | RS485 or CAN |
| Overall Dimensions | Φ89mm × 42mm |
| Weight | 660g |
Interface Definition
- ID SWITCH
- CAN/RS485 connector pin notes:
| 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 |
For product selection or integration support, contact support@rcdrone.top or visit https://rcdrone.top/.
Manuals
Details
A compact K Series FOC servo motor built for robotics and automation, with an integrated drive and high-precision encoder.
Integrated motor + driver construction helps simplify wiring and system layout while keeping the package lightweight.
Switch between torque, speed, and position control modes, with CAN/RS485 bus communication and real-time stator temperature monitoring.
Clear interface labeling makes it easy to connect power and CAN/RS485 communication, with an onboard ID switch for multi-node setups.
PC software supports parameter tuning, testing, and firmware upgrades, with multiple control modes and built-in protection options.
Well-suited for compact motion-control systems such as inspection robots, handheld stabilizers, LiDAR platforms, and gimbal pods.
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