42mm NEMA17 DC Stepper Motor

Product Overview

Our 42mm NEMA17 DC Stepper Motor is a high-precision, 2-phase hybrid motion control solution designed for industrial automation and precision equipment manufacturers. Featuring a standard 42×42 mm NEMA17 mounting flange and 25–60 mm body length, this motor delivers exceptional positioning accuracy with a standard 1.8° step angle (0.9° high-precision option available), supporting up to 256 microsteps for ±0.05° positional accuracy. With a holding torque range of 1.8–7.3 kg·cm and over 98% motion repeatability, it is the ideal choice for system integrators and precision engineering teams requiring reliable, repeatable motion control for critical applications.

Core Advantages & Industrial Performance Features

Ultra-High Precision Positioning for Critical Motion Control

This NEMA17 stepper motor translates pulse signals into fixed-angle rotation, enabling open-loop positioning without expensive feedback systems. With 1.8° and 0.9° step angle options, up to 256 microstep resolution, and ±0.05° positional accuracy, it delivers consistent performance for applications requiring ultra-fine motion control, with minimal vibration and smooth operation across all speed ranges.

Compact Form Factor with Industry-Leading Torque Density

Optimized magnetic circuit design and high-performance rare-earth magnets deliver exceptional torque output within a compact 42×42 mm footprint, with torque density increased by over 20% compared to standard stepper motors. The 25–60 mm adjustable body length allows for flexible integration into space-constrained embedded systems and small-scale automation equipment, without compromising on power output.

Superior Repeatability & Stable Long-Term Operation

Manufactured under strict ISO 9001:2015 and IATF 16949 quality management systems, this high precision stepper motor delivers over 98% motion repeatability, with minimal backlash and consistent performance across thousands of operating cycles. Precision-machined components and high-grade bearings ensure low shaft play, reduced wear, and extended service life in continuous industrial operation.

Flexible Control for Diverse Industrial Applications

Available with 4-wire and 6-wire configurations, this 2 phase hybrid stepper motor is compatible with all standard stepper motor drivers and controllers, supporting a wide range of control methods for diverse motion applications. Its robust design ensures reliable operation in harsh industrial environments, with an ambient temperature tolerance of -20°C ~ +50°C and high dielectric strength for enhanced electrical safety.

Industrial Applications

Our industrial stepper motor is widely adopted across precision industrial and commercial sectors, including 3D printing equipment, CNC machining systems, medical infusion pumps and diagnostic devices, optical positioning and camera PTZ systems, small-scale robotics and collaborative robots, automated assembly lines, laboratory automation equipment, and security and access control systems. It is the preferred choice for OEMs requiring high-precision, repeatable motion control for critical equipment.

Customization Capabilities

We offer end-to-end customization for our 42mm stepper motor to meet unique project specifications. Available modifications include custom winding configurations for tailored current and torque output, custom shaft machining and dimensional adjustments, compatibility with gearboxes, encoders, and dedicated controllers, custom lead wire and connector configurations, and specialized coatings for harsh environment operation. All custom motors comply with CE and RoHS standards, with a minimum order quantity of 3 units.

Wiring & Installation Guide

This NEMA17 precision stepper motor is available in 4-wire and 6-wire configurations, with clearly labeled color-coded leads for simple, error-free wiring to standard stepper drivers. It features a standard NEMA17 mounting footprint for universal compatibility with industry-standard mounting brackets and assemblies. Strict alignment is required during installation to avoid exceeding the maximum 28N radial force and 10N axial force limits, which can cause premature bearing wear and motor failure. For optimal performance, operate within an ambient temperature range of -20°C ~ +50°C, and tune drive parameters to minimize resonance and noise during operation.

FAQ

What is the minimum order quantity for sample units?

The minimum order quantity is 3 units for both standard and custom-configured stepper motors, with sample lead times of approximately 15 business days.

Can this motor be paired with gearboxes or encoders?

Yes, we offer full customization to pair the motor with gearboxes, encoders, and dedicated stepper controllers to meet your application requirements.

What causes abnormal noise in the stepper motor during operation?

Abnormal noise is typically caused by improper drive tuning leading to resonance, or bearing wear. Our engineering team can provide tailored guidance to resolve operational issues.

What certifications do your motors hold?

All our motors are manufactured under ISO 9001:2015 and IATF 16949 quality systems, and are fully CE and RoHS compliant.

How can I optimize the motor to reduce excessive temperature rise?

Temperature rise can be mitigated by adjusting the drive switching frequency, evaluating the motor power margin for your load, and optimizing braking control parameters.

Get Your Tailored Solution Today

Whether you are an automation system integrator, medical device design engineer, or precision equipment manufacturer, our team is ready to deliver a customized high-precision stepper motor solution for your project. Contact us today to request a free product datasheet, sample unit, or custom quote, and let our technical team support your product development with industry-leading motion control expertise.