Spiro Gear
In the rapidly evolving landscape of motion control, the demand for OEM/ODM Stackable Motor solutions has reached an unprecedented peak. As a leading factory-direct supplier, we recognize that the modern engineer is not just looking for a component, but a scalable architecture that offers "Information Gain" in terms of performance density and integration flexibility.
Spiro Gear Motor: Factory-Direct Micro Motors Engineered for Zero-Defect Performance
Tired of trading company markups, communication gaps, and inconsistent batch quality? Spiro Gear is the transparent, direct-from-source China factory you’ve been looking for. We engineer and manufacture world-class precision micro drives directly from our manufacturing floors to your global assembly lines under strict, repeatable quality control.
Unlike traditional fixed-configuration motors, the stackable motor design allows for modular expansion of torque and power without altering the motor's diameter. This is critical for applications where space is a premium—such as surgical robotics, aerospace actuators, and high-density warehouse automation. By "stacking" stator and rotor segments, we provide a customized power profile that fits perfectly within your existing mechanical envelope.
Deep industry heritage since 2006, ensuring stable automated production lines and long-term supply security for global partners.
Every single motor is subjected to automated dynamic balancing and acoustic tests under real industrial loads before delivery.
We rapidly customize shafts, integrated encoders, and specialized gearheads to fit your device housing perfectly.
Our ecosystem runs fully compliant with international ISO9001, CE, RoHS, and REACH safety standards.
Advanced Equipment for Superior Micro-Drive Precision
As a Tier-1 China Stackable Motor Factory, we leverage the world's most robust industrial cluster in the Pearl River Delta. Our vertical integration—ranging from raw magnetic material sourcing to in-house gear hobbing and automated winding—allows us to offer a 30% reduction in lead times compared to Western counterparts without compromising on the tight tolerances required by medical and aerospace sectors.
Our facility is equipped with specialized machinery such as Slow-feeding NC wire-cut machines, EDM, and High Precision Horizontal Gear Hobbing Machines, ensuring every stackable component aligns with sub-micron accuracy.
Customizing high-torque, low-noise motors for smart locks, motorized curtains, and robotic vacuum cleaners that require compact stackable footprints.
Stackable BLDC motors provide the modular power needed for multi-axis robotic arms and heavy-load Automated Guided Vehicles (AGVs).
Zero-cogging stackable motors designed for surgical drills and infusion pumps, meeting stringent biocompatibility and reliability standards.
Supplying Tier-2 automotive manufacturers with robust, high-temperature resistant motors for seat adjustment, mirrors, and electronic valves.
The future of stackable motor technology lies in the integration of "Intelligence at the Edge." Our R&D department is currently focusing on three key technological frontiers:




Stackable motors offer modularity. You can increase the torque by adding stacks without increasing the diameter of the motor, making it ideal for cylindrical or narrow housing constraints. It also allows for easier OEM customization of performance specs.
We use automated production lines and 100% in-house testing. Every motor undergoes dynamometer testing, noise level checks in soundproof rooms, and aging tests before shipment to ensure zero-defect performance.
Yes. Our "Agile Custom Prototyping" program is designed specifically for engineers who need a functional prototype for validation before moving to mass production. We can customize shafts, voltages, and gear ratios rapidly.
All our manufacturing processes and products are compliant with ISO9001, CE, RoHS, and REACH standards, ensuring they can be legally and safely integrated into products for the EU, North American, and Asian markets.