
Overview
The Kpower DM090W is a PWM servo motor for RC models and position-controlled mechanisms in water-exposed equipment. It combines metal gears, a potentiometer position sensor and an IP67-rated plastic case. At 6 V, it delivers 10.5 kg·cm stall torque and a no-load speed of 0.08 s/60°. Its 4.8–8.4 V operating range and 40.7 × 19.8 × 37.7 mm dimensions support electrical and mechanical integration planning.
Features
- Metal gear transmission driven by a DC brushed motor.
- PWM control with potentiometer position feedback and a working frequency of 50–333 Hz.
- IP67-rated plastic housing with two ball bearings (2BB).
- 25T, Ø6 mm horn spline; the output shaft has a central threaded hole.
- Slotted mounting tabs for securing the servo to a mounting structure.
- 120°/180° travel angle range, customizable.
Specifications
| Parameter | DM090W |
|---|---|
| Stall torque | 10.5 kg·cm at 6 V |
| Rated torque | 2.5 kg |
| No-load speed | 0.08 s/60° at 6 V |
| Weight | 60 g |
| Dimensions | 40.7 × 19.8 × 37.7 mm |
| Travel angle range | 120°/180° (customizable) |
| Operating voltage | 4.8–8.4 V |
| Horn gear spline | 25T, Ø6 mm |
| Gear material | Metal |
| Motor | DC brushed |
| Protocol | PWM |
| No-load current | 1800 mA |
| Position sensor | Potentiometer |
| Case material | Plastic |
| Ball bearings | 2BB |
| Working frequency | 50–333 Hz |
| Operating temperature | −10 to 50 °C |
| IP rating | IP67 |
| Output and mounting details | Splined output shaft with a central threaded hole; slotted mounting tabs |
Applications
- RC models: actuate positioning linkages using PWM control, with 0.08 s/60° no-load movement at 6 V.
- Underwater drones and underwater robots: position mechanisms in water-exposed assemblies using the IP67-rated housing. The IP rating does not establish a continuous-submersion depth or duration.
- Electric surfboards: actuate position-controlled mechanisms where the IP67-rated enclosure is relevant to water exposure.
- Robot floor cleaners and smart bidets: move positioning mechanisms using potentiometer feedback and a water-resistant enclosure.
- Sparkling soda water machines: drive controlled-position mechanisms with PWM input and metal gears.
- Smart car signals: move signal-positioning mechanisms using PWM control and potentiometer feedback.
Documents
- Kpower DM090W Drawing — Drawing (PDF)
- OCservo OCS D9501 Drawing — Ocservo Ocs D 9501 Drawing (PDF)
- OCServo OCS D9501 Manuel — Ocservo Ocs D 9501 Manuel (PDF)
- Kpower Servo 3 — Manual (PDF)
- OCServo OCS 351CAN Drawing — Ocservo Ocs 351 Can Drawing (PDF)
Product Videos
Visual Details
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Features and Design



Specifications and Performance


Additional Product Details


Setup and Use



Interfaces and Connections

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