MYACTUATOR

MYACTUATOR contact details

Head office

599 Yuanchuang Road, Huaqiao District
Kunshan City, Suzhou, Jiangsu Province
China

Website myactuator.com

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Contact details as published by Suzhou Micro Actuator Technology Co., Ltd., checked 2026-10-30. Specify Motion is not affiliated with Suzhou Micro Actuator Technology Co., Ltd..

MYACTUATOR product lines

Who MYACTUATOR is

MYACTUATOR is a Chinese manufacturer of integrated robot joint actuators, trading as the brand of Suzhou Micro Actuator Technology Co., Ltd. Its products put a brushless motor, a reduction stage, a servo driver and encoders into one compact housing, so a robot builder can create a torque-controlled joint with a single power and bus connection. The RMD-X range in particular is widely used in humanoid, legged and research robots, and the company has expanded into harmonic, cycloidal, direct-drive and frameless designs.

History and ownership

MYACTUATOR’s about page says the company was established in 2020 and describes it as a key technology enterprise in Suzhou. It reports 52 technical staff, more than 3,000 square metres of operating space, 28 patents and five major product series covering hundreds of products. It lists recognitions as a Jiangsu Province science and technology small and medium-sized enterprise, a Kunshan City science and technology talent enterprise, a Suzhou City talent innovation enterprise and a High-tech Enterprise. The site does not name founders, investors or a parent company, so we have not stated any.

Product names changed under new naming rules from 20 March 2024. Current RMD-X model codes encode the gear type, ratio and peak torque: the X4-36, for example, is coded RMD-X4-P36-36, which MYACTUATOR decodes as a 36:1 planetary stage and a peak torque of 36.

Product portfolio

Planetary joint actuators (RMD-X)

The RMD-X V4 range runs from the small X2-7 to the X15-450. By the maker’s model codes, the X15-450 pairs a 20:1 planetary stage with 450 Nm peak torque, and intermediate sizes include the X6-60, X8-120 and X12-320. Current V4 models use dual encoders and both EtherCAT and CAN bus. Variants include “L” versions with front and rear mounting and a hollow X10-200. Earlier RMD-X V2/V3 models such as the X6-40, X8-25 and X10-100, with single encoders and CAN bus/RS485, are now marked discontinued on the series page.

Harmonic joint actuators (RH)

The RH Series uses strain-wave gearing in sizes RH-14, RH-17, RH-20, RH-25 and RH-32, with off-axis dual encoders, an integrated driver and EtherCAT plus CAN bus. The RH-14 is offered at 100:1. Harmonic actuators give near-zero backlash and high ratios in a short length, which suits cobot and precision arm joints. The trade-off against planetary QDD designs is lower back-drivability and less shock tolerance. See harmonic vs planetary vs cycloidal.

Other ranges

MYACTUATOR also lists CEM cycloidal actuators, RMD-H and RMD-L direct-drive motors and FL/FLO frameless motors. Those pages could not be loaded when we researched this profile, so we have not added series records for them yet.

Technologies

Across the current range, the common elements are field-oriented control in an integrated driver, dual encoders (off-axis on the RH range), and a choice of CAN bus or EtherCAT for real-time multi-axis control. MYACTUATOR publishes CAN bus motion protocol and EtherCAT control protocol documents, setup software and 2D/3D models on its download pages, and says some performance data comes from dynamometer testing, with test reports available on request.

Detailed rated torque, speed and voltage tables sit in the product manuals and parameter tabs rather than on the series pages, so specifying engineers should work from the manual for the exact model and version (V2, V3, V4 or V4.1), because figures and connectors changed between versions.

Planetary or harmonic: which MYACTUATOR range fits

As a rule of thumb, a planetary RMD-X suits joints that must be fast, back-drivable and tolerant of impacts, such as legs and the shoulders of dynamic robots, because a single low-ratio planetary stage passes external forces back to the motor where current sensing can detect them. An RH harmonic actuator suits joints that must hold position precisely under load with near-zero backlash, such as cobot wrists and elbows or camera positioners, at the cost of lower back-drivability. For either, size on the continuous torque the joint must hold for minutes at a time, check the motor temperature rise at your duty cycle, and confirm output-side encoder resolution for the positioning accuracy you need.

Industries served

MYACTUATOR focuses on integrated intelligent servo actuators for robotics. Its products are aimed at humanoid and legged robots, robot arms and research platforms. Our robotics and cobots page sets out how joint actuators are specified for production machines, and frameless motor sizing for robot joints covers the build-your-own alternative.

Global and UK presence

MYACTUATOR is based in Kunshan, in Suzhou prefecture, Jiangsu. The pages we read do not list overseas offices or a UK distributor. UK engineers buying for production should confirm CE/UKCA documentation, lead time, firmware and protocol versions, and the support route before committing.

What to send when specifying a joint actuator

State continuous and peak joint torque, speed, duty cycle and supply voltage; the bus (EtherCAT or CAN); whether you need output-side absolute position and a brake; backlash and stiffness limits; mass and envelope; and environment.

Specify Motion is independent of MYACTUATOR. Our engineers can help source MYACTUATOR products or propose equivalents from our supply network on published figures; see find a replacement or the servo and stepper motors hub.

MYACTUATOR history: key dates

1. 2020Suzhou Micro Actuator Technology Co., Ltd. established
2. 2024New product naming rules take effect on 20 March 2024

MYACTUATOR harmonic actuators

Integrated robot joint actuator

RMD-X V4

Planetary robot joint actuators with integrated driver, dual encoders and EtherCAT plus CAN bus, from the X2-7 to the X15-450; by the maker's naming the largest gives 450 Nm peak through a 20:1 planetary stage.

Harmonic actuator

RH Series

Strain-wave (harmonic) geared joint actuators in sizes RH-14 to RH-32 with off-axis dual encoders, integrated driver and EtherCAT plus CAN bus; the RH-14 is offered at 100:1.

Integrated robot joint actuator · discontinued

RMD-X V2/V3 (earlier models)

Earlier RMD-X planetary joint actuators with single encoders and CAN bus/RS485 (for example X6-40, X8-25 and X10-100), now marked discontinued on MYACTUATOR's series page.

Frequently asked questions

What is the MYACTUATOR website?

MYACTUATOR's official website is myactuator.com. It lists the RMD-X planetary, RH harmonic, CEM cycloidal, RMD-H and RMD-L direct-drive and FL/FLO frameless product series, with model pages, downloadable 2D/3D files, manuals and communication protocols for CAN bus and EtherCAT.

What is MYACTUATOR's phone number and email?

The MYACTUATOR pages we could read do not publish a general phone number or sales email, and its contact page could not be loaded when we checked, so we have not listed either. The download page gives a staff email for test reports, which we do not reproduce; use the website's contact page.

Where is MYACTUATOR based?

MYACTUATOR's website gives its address as 599 Yuanchuang Road, Huaqiao District, Kunshan City, Suzhou, Jiangsu Province, China. Its about page says it is a technology enterprise in Suzhou with an operating area of more than 3,000 square metres.

Who owns MYACTUATOR?

MYACTUATOR is the brand of Suzhou Micro Actuator Technology Co., Ltd., established in 2020. Its about page does not name a parent company, founders or investors, so we have not stated any.

Does MYACTUATOR have a UK distributor?

The MYACTUATOR pages we read do not list a UK office or UK distributor. Specify Motion is independent of MYACTUATOR and can help source its actuators or propose equivalents with industrial support from our supply network.

What does MYACTUATOR make?

MYACTUATOR makes integrated servo actuators for robot joints: RMD-X planetary actuators, RH harmonic actuators, CEM cycloidal actuators, RMD-H and RMD-L direct-drive motors and FL/FLO frameless motors. Current RMD-X and RH models combine motor, gearing, driver and dual encoders with EtherCAT and CAN bus.

Sources

1. MYACTUATOR: Home page
2. MYACTUATOR: About us
3. MYACTUATOR: RMD-X planetary motor series
4. MYACTUATOR: V4 X4-36 details
5. MYACTUATOR: Downloads, X series
6. MYACTUATOR: RH harmonic motor series
7. MYACTUATOR: RH-14 details
8. MYACTUATOR: Product news

Figures are summarised from the sources above and from manufacturers' published data on the date shown. Always confirm against the current datasheet for your exact part.