Jewelry micro motors mainly include micro vibration motors, micro geared motors, and brushless motors, widely used in jewelry grinding, polishing, and precision machining equipment.
1. Micro Vibration Motors: These are DC brushed motors that generate vibration through the rotation of an eccentric wheel at the shaft end. They are used in jewelry cleaning machines or vibratory polishing equipment.
Features: Small size (3.2–12mm diameter), low noise, low power consumption; operating voltage is typically 1.5–4V.
Applications: Small jewelry vibratory cleaning tanks, automatic polishing devices, etc.
2. Micro Geared Motors: These integrate a micro motor with a gearbox, achieving low speed and high torque output. They are suitable for driving precision tools such as jewelry grinding and polishing machines.
Gear Reducer Types:
Planetary Gear Reducers: Compact structure, high efficiency, suitable for high-precision equipment.
Parallel Shaft Gear Reducers: Low cost, simple structure.
Worm Gear Reducers: Large transmission ratio, self-locking, but lower efficiency. Common specifications: Diameter 3.4–38mm, output speed 5–2000 RPM, torque 1 g·cm to 50 kg·cm.
3. Brushless Motors: Utilizes electronic commutation, offering long lifespan and stable speed, suitable for high-end jewelry polishing equipment.
Example: Mabuchi's "Thumbelina®" ultra-compact brushless motor series features lightweight, high efficiency, and high precision, suitable for tools such as miniature electric grinders.
Advantages: No brush wear, low maintenance, suitable for long-term continuous operation.
