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This 20mm precision stepper motor is engineered for accurate motion control, featuring a 1.8° step angle and support for 256 microstepping. High-grade magnetic materials and fine machining deliver ±0.05° positioning accuracy, low vibration, and ultra-quiet operation. With over 98% repeatability, it excels in medical devices, optical systems, and precision automation applications.
| Quantity: | |
|---|---|
Item | Core Specification |
Motor Type | 1.8° 20mm (NEMA8) 2-Phase Hybrid Stepper Motor |
Step Angle | 1.8° |
Ambient Temperature Range | -20℃ ~ +50℃ |
Max Radial Force | 28N (20mm from Flange) |
Max Axial Force | 10N |
Number of Leads | 4 |
Model No. | Motor Length (mm) | Current/Phase (A) | Holding Torque (g.cm) | Weight (Kg) |
SLT20HS30-0604 | 30 | 0.6 | 180 | 0.06 |
SLT20HS38-0604 | 38 | 0.6 | 300 | 0.08 |
SLT20HS42-0804 | 42 | 0.8 | 300 | 0.09 |
Our 20mm NEMA8 DC Stepper Motor is an ultra-miniature, high-precision 2-phase hybrid stepper motor, engineered exclusively for industrial OEMs, embedded system developers, and precision medical device manufacturers requiring space-saving, ultra-quiet motion control. With a 20×20 mm standard NEMA8 mounting flange and 30–42 mm slim body, this motor delivers exceptional performance in the most compact enclosures, with a 1.8° step angle and premium magnetic materials ensuring ±0.05° positioning accuracy and over 98% motion repeatability. It is the ideal solution for micro-motion applications where every millimeter of space and every degree of precision matters.
The 20×20 mm standardized flange and 30–42 mm short body enable flexible, space-saving mounting in miniature equipment, eliminating the need for custom enclosure redesigns for space-constrained micro-motion systems. Precision machining ensures ultra-low radial and axial play, maximizing stability in high-cycle micro-adjustment tasks.
Built with high-grade magnetic materials and fine machining, our 1.8° NEMA8 miniature stepper motor delivers consistent, ripple-free torque at ultra-low speeds (0.1–5 rpm), with static torque ranging from 180–300. It operates with minimal vibration and ultra-low noise, making it perfect for noise-sensitive medical and optical applications.
This ultra-compact precision stepper motor supports up to 256 microstepping, delivering ±0.05° positioning accuracy and over 98% motion repeatability. Its 1.8° step angle ensures smooth, precise motion control for even the most delicate micro-adjustment tasks, outperforming standard miniature motors in the same form factor.
Designed with adaptable digital input/output (DI/DO) configuration, it features 3 DI channels and 1 DO port, enabling seamless signal integration, fast response, and precise logic control for automated micro-systems. Rated for -20℃ to +50℃ ambient operation, it delivers reliable performance in harsh industrial and laboratory environments.
This 20mm NEMA8 micro stepper motor is optimized for medical micro-adjustment mechanisms, 3D printer extruder motors, small robotics actuators, optical focusing systems, embedded smart devices, portable precision instruments, laboratory micro-pumps, and automated micro-assembly equipment.
We offer comprehensive customization for embedded system developers and medical device OEMs, including custom shaft and flange machining, encoder/gearbox/controller integration, tailored winding configurations, and custom wiring/connectors. Minimum sample order quantity is 3 units, with a 15-day standard lead time. Our in-house engineering team provides full support for custom prototype development and mass production.
This 4-wire motor uses UL1007 28AWG leads with standard color coding: Black (Phase A), Green (Phase C), Red (Phase B), Blue (Phase D). It features a standard NEMA8 mounting pattern with 4-M2 threaded holes for secure, drop-in installation. Ensure applied radial and axial loads do not exceed rated limits, and maintain proper shaft alignment to avoid bearing wear and extend service life.
The minimum sample order is 3 units, with a standard 15-day lead time for custom and standard samples.
Yes, we offer full custom engineering support, including machined prototypes and integration with complementary components like gearboxes and controllers to meet your exact specifications.
Excessive current is typically caused by mismatched supply voltage, loose connections, or system overload. Verify supply voltage matches motor ratings, inspect connections for corrosion, and confirm the application is not overloading the motor. Our team provides full troubleshooting support.
Whether you are a medical device OEM designing precision micro-adjustment equipment, an embedded system developer building compact motion solutions, or a laboratory equipment manufacturer requiring ultra-quiet micro-stepper motors, our team delivers tailored 20mm NEMA8 DC Stepper Motor configurations to match your exact requirements. Contact us today to request a quote, order samples, or consult our engineering experts.
