MyActuator RMD-X6
A sealed, IP-rated integrated servo with a 1:6 to 1:10 planetary stage. Popular for outdoor and industrial-leaning builds where you want a bolt-on joint with a datasheet.
The role it plays
An actuator turns electrical power into motion. The useful unit is never the motor alone — it is motor + reduction + encoder + driver loop, and most of the engineering is in the last three. The number that decides a design is continuous torque at the joint, not the peak figure on the datasheet. Peaks last milliseconds; gravity lasts all day.
Typical use: Robot arms, AGV steering, gimbals, field robots.
What the numbers actually mean
The headline figure is ~12 N·m (peak torque), with ~200 rpm output as the next most load-bearing number (max speed). At $300 in the actuators tier it sits as a capital purchase. At this price you are buying documentation, repeatability and support as much as metal, and the integration cost is usually larger than the part.
How it compares
Same subsystem, closest alternatives. The primary spec column is usually the one that decides it.
| Part | Price | Primary spec | Second spec |
|---|---|---|---|
| MyActuator RMD-X6Integrated servo motor | $300 | ~12 N·m | ~200 rpm output |
| Feetech STS3215Serial-bus servo | $17 | 30 kg·cm (2.94 N·m) @ 7.4 V | ~0.222 s / 60° |
| Feetech SCS0009Micro serial servo | $8 | 9 kg·cm (0.88 N·m) @ 6 V | ~0.1 s / 60° |
| Dynamixel XL430-W250-TSmart servo | $50 | 1.5 N·m @ 12 V | 59 rpm @ 12 V |
| Dynamixel XM430-W350-TSmart servo | $260 | 4.1 N·m @ 12 V | 46 rpm @ 12 V |
Where it shows up
Platforms in this atlas that use something in this class: ANYmal D, Agility Digit, Agrobot field rover.