At a time when smart devices are upgrading toward lightweight and high-precision design, micro planetary gear motors have become the core power support for compact installation spaces, high-load and high-precision scenarios, thanks to their compact structure, high torque density and accurate transmission performance.Focused on micro motor manufacturing, Huajuntong accurately grasps market demands and launches a full range of micro planetary gear motors.
The brushed series starts from 12mm and the brushless series from 16mm, covering multiple outer diameter specifications. Balancing cost performance and high performance, we also deliver stable and reliable drive solutions for various precision equipment with strong customization capabilities.

Huajuntong micro planetary gear motors focus on "full-series adaptation + customized empowerment". It covers multiple outer diameter specifications, with brushed motors starting from 12mm and brushless motors from 16mm. Custom solutions can be tailored to meet actual demands of different scenarios, breaking the limitations of standardized products and realizing selection and precise adaptation as required. The performance advantages of the two core series are shown in the table below.
| Performance Parameters / Series | Brushed Planetary Gear Motor (Starting from 12mm) | Brushless Planetary Gear Motor (Starting from 16mm) |
| Outer Diameter Specification | 12mm (with various larger sizes available) | 16mm (multiple larger sizes available) |
| Reduction Ratio Range | Speed ratio up to 1000, sufficient power output | Reduction ratio up to 1026, adapting to diverse load requirements |
| Core Advantages | Controllable cost and stable operation, suitable for conventional civil and commercial scenarios. | Long service life and low interference, suitable for high-end precision driving scenarios. |
| Applicable Scenarios | Smart home, general commercial terminals and other conventional scenarios | Medical equipment, industrial actuators and other high-end precision scenarios |
Relying on the R&D and production strength of Huajuntong’s original factory, the full range of micro planetary gear motors adopt independently processed core components. With strict full-process quality control from precision gear grinding to finished product aging testing, consistent performance is guaranteed for every batch. Standard models are kept in stock at all times. Meanwhile, we provide in-depth customization services to flexibly adjust core parameters such as reduction ratio, output shaft size, voltage, mounting method and driving mode, fully meeting personalized operating conditions of different equipment and delivering exclusive solutions for customers.
At present, Huajuntong micro planetary gear motors are widely applied in multiple fields including intelligent security, smart home, medical equipment, industrial automation and commercial intelligent terminals, fully meeting the power demands of various industries. Distinguished from peer manufacturers by outstanding customization strengths, Huajuntong precisely caters to customers' special working conditions. With a complete product lineup, flexible customization capabilities, stable quality and cost-effective solutions, we have become a core motor supporting partner for numerous enterprises, empowering equipment upgrading with precise power output.