39mm Nema 16 Hybrid Stepper Motor - Low Noise, 1.8° Step, 4 Leads
The 39mm Nema 16 hybrid stepper motor stands out for its low noise operation, featuring a 1.8° step angle and 4-lead design. Ideal for precision-focused setups like lab instruments, small 3D printers, and compact robotics, it delivers smooth, quiet movement with reliable step control. Its compact size and noise-reducing build make it a smart choice for applications where minimal sound and accuracy matter.
Genaral Specification:
Item | Specifications |
Step Angle | 1.8° |
Step Angle Accuracy | ±5%(full step,no load) |
Resistance Accuracy | ±10% |
Inductance Accuracy | ±20% |
Temperature Rise | 80℃max |
Ambient Temperature | -20℃~+50℃ |
Insulation Resistance | 100 MΩ Min. ,500VDC |
Dielectric Strength | 500VAC for 1minute |
Shaft Radial Play | 0.02Max. (450g-load) |
Shaft Axial Play | 0.08Max. (450g-load) |
Electrical Specification:
| Step Angle | Motor Length | Current/Phase | Resistance/Phase | Inductance/Phase | Holding Torque | Number of leads | Weight |
(°) | (mm) | (A) | (Ω) | (mH) | (kg.cm) | (No.) | (Kg) |
39BYGH20-4804 | 1.8 | 20 | 0.48 | 28 | 21 | 1 | 4 | 0.1 |
39BYGH20-0704 | 1.8 | 20 | 0.7 | 12 | 11 | 1.2 | 4 | 0.1 |
39BYGH22-0404 | 1.8 | 22 | 0.4 | 30 | 20 | 1.3 | 4 | 0.12 |
39BYGH25-0404 | 1.8 | 25 | 0.4 | 36 | 15 | 1.7 | 6 | 0.15 |
Above only for representative products, products of special request can be made according to the customer request. |
Mechanical Dimension:MM

Stepper motors are versatile components used across numerous industries, thanks to their ability to provide precise, controlled movement. Here are key applications where they excel:
- Automation & Manufacturing: In assembly lines, they drive conveyor belts, robotic arms, and precision positioning systems, ensuring consistent part alignment and repetitive task accuracy—critical for mass production efficiency.
- 3D Printing: They power extruders and build plates, translating digital designs into physical objects with layer-by-layer precision, relying on precise step control to maintain print quality.
- Medical Devices: Used in equipment like syringe pumps, MRI table adjustments, and lab automation tools, where exact movement (e.g., micro-dose delivery or sample positioning) is vital for patient safety and test accuracy.
- CNC Machinery: In routers, mills, and lathes, stepper motors control tool movement along axes, enabling intricate cuts and shapes with tight tolerances, essential for custom part fabrication.
- Robotics: From small hobby robots to industrial automation bots, they manage joint movements, gripper operations, and navigation, balancing torque and precision for smooth, controlled motion.
- HVAC & Appliances: They regulate dampers in air conditioning systems, control valve positions in refrigerators, or adjust flaps in smart vents, ensuring efficient temperature and airflow management.
- Aerospace & Defense: Used in satellite antenna positioning, aircraft control systems, and drone stabilization, where reliability and precise movement under harsh conditions are non-negotiable.
Their adaptability to varying torque, size, and step angle requirements makes stepper motors indispensable in scenarios demanding both accuracy and repeatability.