Overview
The MyActuator RMD-X4-3 is a high-precision planetary servo actuator featuring an integrated reducer, compact design, and high torque output. Designed for robotics and automation applications such as exoskeletons, AGV smart trucks, and multi-axis robotic arms, this actuator offers 30W power, 1.5 N·m rated torque, and 200 RPM speed, all within a lightweight 0.3 kg housing. It supports CAN BUS and RS485 communication, making it ideal for precise and responsive control systems.
Key Features
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Integrated planetary reducer for smooth, efficient power transmission
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Lightweight and compact design for space-limited applications
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High-precision brushless motor with silent operation
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Multiple protection systems: over-temperature, over-voltage, over-current, and charge/discharge protection
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Real-time monitoring and tuning with V3.0 debugging software
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High durability with anti-corrosion and long-life construction
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Customization support for IP54 rating or braking system
Technical Specifications
| Parameter | Value |
|---|---|
| Gear Ratio | 6:1 |
| Input Voltage | 24 V |
| Rated Speed | 200 RPM |
| Rated Torque | 1.5 N·m |
| Peak Torque | 3.0 N·m |
| Rated Power | 30 W |
| Rated Current | 2 A |
| Peak Current | 4 A |
| Efficiency | 60% |
| Backlash | 10 arcmin |
| Axial Load | 300 N |
| Radial Load | 550 N |
| Inertia | 1.2 kg·cm² |
| Encoder Resolution | 18-bit |
| Communication | CAN BUS 1M / RS485 (115200/500K/1M/2.5M) |
| Weight | 0.3 kg |
Motor Characteristic Highlights
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High efficiency curve peaking around nominal load
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Smooth torque response across a wide range of speeds
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Stable performance during prolonged operations at rated torque and load
Applications
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Exoskeleton Robots – smooth and precise joint actuation
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AGV Smart Trucks – reliable, high-torque motion control
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Multi-Axis Robotic Arms – accurate and repeatable positioning
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Lightweight Robotics – compact yet powerful drive solution
Package Contents
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1 × MyActuator RMD-X4-3 Planetary Servo Actuator
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1 × User documentation and installation guide
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1 × Standard cable set for power and communication
Advantages
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High reliability and silent operation
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Advanced protections for safe use
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Easy integration with industrial CAN and RS485 systems
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Supports tuning and monitoring with user-friendly software
Details

The RMD-X4 Series offers hollow and non-hollow designs with integrated motor drive, lightweight build, anti-corrosion properties, high precision, long life, customization, low noise, precise control, easy operation, strong load capacity, and brushless motor technology. Built for durability and high performance in demanding applications.

Multiple protection, safe and reliable. Hollow shaft design for easy cable passage. Supports customization and bus current sampling.

High Density Brushless Motor with MC-100 Driver, offering safe, silent, precise control. Features small size, strong power, and V3.0 debugging software for real-time data read and control.

Certification highlights 15 authorized patents and CE/ROHS compliance. Applications include Lidar, 360° camera, pod head, and handheld camera systems for diverse uses.

Planetary Actuator MRC RMD X4 has 6:1 gear ratio, 24V, 200 RPM, 1.5 N.m torque, 30W. Supports CAN BUS and RS485. Weighs 0.3kg with installation drawings and motor curves.
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