Overview
The MyActuator RMD-X8-S2 Motor is a servo actuator motor from the RMD-X V3 Series, designed for compact, high-integration robotic joints and drive modules. The series highlights include small size, light weight, and high integration, with focus points such as multiple protections, low noise, high precision, good quality, and long service life.
Key Features
- Control modes: Servo mode (Torque / Velocity / Position); Motion mode (feedforward torque/velocity/position)
- Communication: CAN bus and RS485 bus (baud rates listed in Specifications)
- Encoder function: Encoder multi-turn angle recording function; reserve data after power off
- Second encoder support: Support install the second encoder (higher control accuracy)
- Protection design: Overtemperature protection / Overcurrent protection / Overvoltage protection / Overspeed protection
- Firmware/updates: Support remote update and update the latest firmware at any time
- Temperature sensing: Support temperature sensor and the temperature can be read in real time
- Mechanical: Double bearing construction; compression resistance; shock resistance; “20% performance increased”
- Environmental design (statement from product material): Fully enclosed waterproof design; waterproof / dustproof / resists corrosion; need to be customized
For pre-sales compatibility questions and technical support, contact https://rcdrone.top/ or email support@rcdrone.top.
Application Scenarios
- Humanoid robots
- Robotic arms / mechanical arms
- Exoskeleton robots
- Quadruped robots
- AGV vehicles / AGV smart truck
- ARU robots
Specifications
| Parameter | Value |
|---|---|
| Item No. | 1033918040 |
| Control mode | Servo mode (Torque / Velocity / Position) Motion mode (feedforward torque/velocity/position) |
| Communication Method & Baudrate | CAN BUS: 500Kbps / 1Mbps RS485 BUS: 115200 / 500K / 1M / 1.5K / 2.5K |
| Input Voltage | 48V |
| No Load Speed | 46RPM |
| Nominal output Speed | 40RPM |
| Nominal current | 3.2A |
| Output nominal power | 110W |
| Nominal torque | 25 N.m |
| Efficiency | 70% |
| Overload coefficient | 2 |
| Wire Resistance | 0.27 Ω |
| Wire inductance | 0.1 mH |
| Motor Speed constant | 33 rpm/v |
| Motor Torque constant | 0.3 N.M/A |
| Axial direction payload | 985 N |
| Radial direction payload | 1250 N |
| Rotor inertia | 2670 gcm² |
| Motor weight | 900 g |
| Reducer ratio | 36:1 |
| Backlash | 15 Arc min |
Manuals / Documents
Details

Use the RMD-X V3 motor‑driver matching table to select compatible drivers and bus options for your control setup.

Part of the RMD‑X V3 Series, built for compact robotic joints where low noise and precision matter.

A fully enclosed housing is available for projects that need waterproof, dustproof, and corrosion‑resistant protection (customization required).


Multi‑turn angle recording helps retain position data after power‑off, with support for adding a second encoder for higher accuracy.

Double‑bearing construction improves shock and compression resistance for demanding mobile and articulated robot platforms.
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