Overview
The Kpower EM3 servo motor is an anti-shock, TTL force-controlled robot servo designed for compact robot joints and multi-servo assemblies. It supports TTL serial bus connectivity to simplify wiring and enable precise torque adjustment with real-time feedback.
For customization options such as travel angle, wire length, control type, and position sensor, contact the store customer service team.
Key Features
- Anti-shock design and servo gear clutch anti-impact protection for stable robot joint operation
- TTL bus connectivity: multiple servos on a single interface; simplifies wiring and reduces clutter
- Enables independent control for each servo (TTL serial bus)
- Overload clutch disengagement protection
- Low noise design: ≤65 dB
- Supports multiple feedbacks
- Listed as: dual-axes robotic servo
Technical Specifications
| Model | EM3 |
| Stall torque | 3 kg.cm @ 8.4V (also listed as 3 kg) |
| Rated torque | 0.8 kg |
| No-load speed | 0.08 s/60° @ 8.4V |
| Weight | 9 g |
| Dimensions | 28.5 x 12 x 22.5 mm |
| Wire length | 60 mm |
| Travel angle | 300° (Customizable) (another listing states 120°±5 (Customizable)) |
| Operating voltage | 4.8 ~ 8.4 V |
| Protocol / interface | PWM | TTL | RS-485 (another listing states PWM | TTL) |
| Position sensor | Potentiometer |
| Motor type | DC Brushed |
| Gear material | POM |
| Case material | Plastics |
| Horn gear spline | N/A |
| Spline | N/A |
| Ball bearing | 2BB (another listing shows "/") |
| Working frequency | 50 ~ 333 Hz |
| Operating temperature | -10 ~ 50°C |
| IP rating | IP42 |
| No-load current | 1000 mA |
| Stall current | 1000 mA |
Application Scenarios
- Humanoid robots
- Robotic arms
- Exoskeletons
- Quadruped robots
- AGV vehicles
- ARU robots
- Companion robots
- AI desktop robots
- Wheel-drive robots
- Pet robot toys
- Desktop robots
Manuals
Details
Built for compact robot joints, the Kpower EM3 combines anti-shock protection with TTL force control for stable motion and real-time feedback.
TTL serial bus connectivity lets multiple servos share a single interface, reducing wiring clutter while keeping each servo independently addressable.
Key specs at a glance: 3 kg·cm stall torque at 8.4V, 0.08 s/60° speed, 9 g weight, 4.8–8.4 V operation, and PWM/TTL/RS-485 support.
A lightweight internal build pairs a geartrain with a brushed DC motor and control board to support long-life, quiet servo operation.
Choosing between sizes is straightforward: EM3 focuses on compact 9 g builds, while EM10 targets higher-torque applications.
Typical uses include companion robots, desktop AI robots, wheel-drive robots, and pet robot toys where compact joints matter.
