Overview
The KST DS215MG V8.0 is a coreless digital micro servo motor designed for fast response and compact integration. It supports DC 6.0V–8.4V operation and provides up to 4.0 kgf.cm torque with a rated voltage of DC 7.4V. The servo uses a CNC aluminum alloy case, hardened steel gear train, and dual ball bearings.
Key Features
- Coreless digital micro servo (DS215MG V8.0)
- CNC aluminum case; aluminum alloy housing material
- Hardened steel gears
- Dual ball bearings (2BB)
- Programmable soft-start; function programmability: Yes
- Default travel angle: +/-70 deg (total 140 deg)
Specifications
| Model | DS215MG V8.0 |
| Rated Voltage | DC 7.4V |
| Operating Voltage Range | DC 6.0V - 8.4V |
| Output Torque | 3.1 kgf.cm @ 6.0V; 3.7 kgf.cm @ 7.4V; 4.0 kgf.cm @ 8.4V |
| Rotational Speed (60deg Rotation) | 0.060 sec @ 6.0V; 0.055 sec @ 7.4V; 0.050 sec @ 8.4V |
| Working Frequency | 1520 us / 333 Hz |
| Default Travel Angle | +/-70 deg (Total swing angle: 140 deg) |
| Control Signal Voltage | High level: Min. 3.3V ~ Max. 5.0V; Low level: Min. 0.0V ~ Max. 1.5V |
| Full-Span Control Pulse Width | 800 us - 2200 us |
| Calibrated Pulse Width for Specified Position (-50 / 0 / +50 deg) | 1000 us (-50 deg) / 1500 us (0 deg) / 2000 us (+50 deg) |
| Soft-start Function / Function Programmability | Programmable / Yes |
| Motor Type | Coreless DC Motor |
| Gear Train Material | Hardened Steel |
| Position Sensing Element | Potentiometer |
| Ball Bearing Quantity | 2BB (2 pieces of ball bearing) |
| Housing Material | Aluminum Alloy |
| Enclosure Overall Dimension | 23 mm x 12 mm x 27.5 mm +/- 0.2 mm |
| Unit Weight | 20 g +/- 10% |
| Operating Temperature Range | -10 deg C ~ +65 deg C |
What's Included
- KST DS215MG V8.0 servo motor
- Servo horns/arms (assorted)
- Mounting screws (assorted)
Applications
- Humanoid robots
- Robotic arms
- Exoskeletons
- Quadruped robots
- AGV vehicles
- ARU robots
- Glider elevator & rudder control
- 380-450 class helicopter cyclic & tail rotor control
Manuals
Details

Built for fast, precise control in compact builds, the DS215MG V8.0 combines high speed response with up to 4.0 kgf·cm torque (at 8.4V).

Included hardware makes installation easy: the servo ships with assorted horns/arms and mounting screws for common RC and robotics linkages.

The default travel is ±70° (140° total), ideal for tight mechanical layouts that still need a wide, programmable range of motion.
