Used NEMA 17 Stepper Motor 4.2 Kg-cm High Torque for CNC, 3D Printers & Robotics (Refurbished)

Overview 

Build rugged, high-precision linear motion systems without breaking the bank. Our Used 4.2 Kg-cm NEMA 17 Stepper Motors are authentic, industrial-grade pull-outs sourced from high-end equipment. Don’t let the “used” label fool you—these motors feature superior copper windings and internal bearings compared to cheap generic alternatives. Each motor is individually cleaned, mechanically inspected, and coil-tested by our technical team to guarantee smooth stepping and maximum torque retention.

Key Features 

• High Holding Torque: 4.2 Kg-cm (0.42 Nm) provides excellent holding power, resisting positional drift under structural loads on CNC axes.

• Tested & Certified: 100% functional guarantee. Coils are balanced and bearings are verified for zero binding or shaft play.

• Cost-Effective Powerhouse: Ideal for engineering final year projects (FYPs), automated camera rigs, and low-cost precision machinery.

• Standard Form Factor: Standard 42mm × 42mm faceplate drops directly into standard NEMA 17 brackets, dampeners, and 3D-printed mounts.

Technical Specifications 

What does “Used/Refurbished” mean at Robochacha? 

1. Cosmetic Condition: The motor casing may have minor surface scratches or slight discoloration from previous mounting.

2. Functional Integrity: The shaft rotates perfectly smoothly. Leads are intact, or a compatible JST-type connector socket is verified.

3. Value: You get a robust, industrial-grade motor that will outlast cheap replicas, at nearly half the price.