N30 Motor
-Compact 12mm x 20.5mm design for precise and efficient motion control.
-Reliable in continuous operation with low vibration.
-Custom DC and gear motor configurations available for different applications.
-Options for voltage, shaft type, and speed adjustment.
-Consistent quality backed by ISO-certified manufacturing.
Kechen Micro Motor – Professional N30 DC Motor Manufacturer in China
The N30 series includes 12mm diameter × 20.5mm length DC motors engineered for precise and efficient motion in compact installations. These motors are designed for applications where space is limited but torque and reliability remain critical.
Each N30 motor features a high‑performance brushed DC design, available in both metal‑gear (high torque) and gearless (high speed) versions. Custom voltage, shaft, and speed options can be tailored to meet specific project requirements. With torque output up to 3.8 kg·cm, the series delivers strong performance in a small footprint.
The motors use premium permanent magnets and all‑metal housing, ensuring stable operation under continuous load. Optional IP40–IP50 protection is available for use in environments where dust and moisture are a concern.
N30 motors are assembled with high‑grade sintered magnets, precision‑balanced rotors, and wear‑resistant brushes in carbon or metal options. Production batches undergo quality control for current draw, speed consistency, and noise level to ensure reliable performance before shipment.
Technical Features and Benefits
Kechen N30 series capable of maximum 3.8kg·cm continuous torque output (client design dependent), all-metal gearbox construction with 2-3x higher torque than N20 motors at identical gear ratios. Flexible mounting (dual M1.6 threaded holes), standard 3mm D-shaft output (customizable).
| Parameter | N30 Series Range (Example) |
|---|---|
| Motor Diameter / Size | 12mm × 20.5mm (housing) |
| Rated Voltage | 3V / 6V / 12V (custom 1.5V–24V available) |
| No‑load Speed (output shaft) | 10 – 3000 rpm |
| Stall Torque | Up to 3.8 kg·cm (depending on gear ratio) |
| Gear Ratio Options | 10:1, 30:1, 50:1, 100:1, 300:1, 500:1, 1000:1 |
| Gearbox Material | All‑metal |
| Output Shaft Types | Round, D‑shaft, double flat, spline, custom |
| Optional Features | IP40–IP50 protection, encoder mounting, custom shaft length, connectorized cable |
All components meet RoHS and REACH requirements. A sample test report is included with each production batch to support quality validation and compliance review.
Kechen N30 DC Motor Products
Kechen N30 Motor 3D Design
Gearbox & Feedback Integration – Built for Control Loops
Planetary gearboxes (steel gears, grease‑lubricated) are available from 10:1 up to 1000:1 with <5% backlash. For lower precision requirements, a spur gearbox provides a more cost‑effective option.
Encoder options (mounted on rear shaft):
- 2‑channel magnetic encoder, 12 to 64 PPR
- OEM encoder mounting designed for easy integration
All encoder components are pre‑aligned inside the motor housing — no external mounting brackets required. This simplifies integration into position‑sensitive applications such as valve actuators and camera gimbals.
Wide Application Areas of Kechen N30 Motors
- Model Toys & DIY Enthusiasts: RC car wheel drives, combat robots, model aircraft propellers, micro tank tracks (N30 torque significantly exceeds N20)
- Robot Competitions: Antweight combat robots, line-followers, gripper mechanisms
- Medical Devices: Peristaltic pumps, drug delivery systems
- Industrial Automation: Micro AGVs, precision positioning, valve control
- Smart Home: Smart door locks, electric curtains
- High-Speed Applications: Cooling fans (N30 gearless version)
Custom Design and Manufacturing Support
At Kechen Motor, we specialize in providing customized N30 motor solutions tailored to your engineering needs. Our experienced team assists from specification confirmation to production sampling and mass manufacturing. We support adjustments in parameters such as load current, speed curve, shaft tolerance, and housing dimensions to match exact operating conditions.
Our flexible production capabilities enable low MOQ for prototypes and optimized lead times for volume production. Technical drawings, datasheets, and motor samples are available upon request.

