Overview
The MyActuator RMD-X8-20 Planetary Servo Actuator is a high-performance joint module engineered for MIT robotics projects, including MIT robotic arms, humanoid robots, and quadruped platforms. Featuring a 6:1 gear ratio, 48V input voltage, and 10N·m rated torque, this actuator delivers exceptional power density, high-precision motion control, and long-term durability. Equipped with dual encoders and CAN/RS485 communication, it ensures seamless integration into advanced robotic systems for research, education, and industrial applications.
Key Features
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Optimized for MIT Robotics and Research
Designed to meet the demanding requirements of MIT robotic arms, quadruped platforms, and humanoid systems with precise torque output and control. -
High Torque in a Compact Design
Provides 10N·m rated torque and up to 20N·m peak torque in a lightweight 0.78kg actuator, ideal for compact robotics joints. -
Reliable Protection System
Includes over-temperature, over-current, over-voltage, and over-speed protections for stable performance in dynamic environments. -
Upgradable Firmware and Real-Time Tuning
Supports remote firmware updates and parameter customization for advanced motion profiles and application-specific optimization. -
Environmental Adaptability
IP54 customization offers dustproof, waterproof, and corrosion-resistant protection for industrial and outdoor robotics. -
Precision Dual Encoder System
Dual encoders enable multi-turn angle recording and accurate position feedback, even during power loss, ensuring superior motion precision. -
V3 Control Platform Integration
Real-time waveform monitoring and tuning simplify control setup and performance diagnostics.
Technical Specifications
| Parameter | Unit | Value |
|---|---|---|
| Gear Ratio | – | 6:1 |
| Input Voltage | V | 48 |
| Rated Speed | RPM | 190 |
| Rated Torque | N·m | 10 |
| Rated Power | W | 200 |
| Rated Current | A | 5.2 |
| Peak Torque | N·m | 20 |
| Peak Current | A | 10.5 |
| Efficiency | % | ≥80 |
| Anti-Force Torque | N·m | 0.4 |
| Backlash | Arcmin | 10 |
| Axial Payload | N | 985 |
| Radial Payload | N | 1250 |
| Inertia | Kg·cm² | 29 |
| Encoder Resolution | bit | 14 / 14 |
| Communication Interface | – | CAN 1M / RS485: 115200 / 500K / 1M / 2.5M |
| Weight | kg | 0.78 |
Applications
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MIT Robotic Arms – Optimized for precision tasks and repetitive operation cycles.
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Humanoid Robots – Enables natural, smooth joint movement for advanced locomotion and interaction.
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Quadruped Robots – Delivers robust torque for agile, dynamic walking and stability.
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Exoskeleton Systems – High power density for wearable robotics and assistive devices.
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AGV Smart Carts – Supports high payloads and reliable motion control for automation.
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SCARA & ARU Robots – Suitable for industrial automation, assembly, and research prototypes.
Package Listing
The MyActuator RMD-X8-20 Planetary Servo Actuator package includes:
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Motor Unit ×1 – RMD-X8-20 actuator module
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CAN Cable ×1 Pair – For CAN bus communication
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Power Cable ×1 Pair – For power input connection
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Terminal Resistor ×1 – For CAN bus termination
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Heat Shrink Tubes ×1 Set – For secure cable connections
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CAN Cable Connector ×1 Pair – For reliable CAN wiring interface
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Power Cable Connector ×1 Pair – For secure power cable attachment
Details

Planetary Servo RMD-X8-20 offers 48V input, 190 RPM, 10 N.m torque, 200W power. Dual encoder, CAN BUS/RS485 communication. Supports brake and IP44 customization.
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