---
product_id: 52325269
title: "STEPPERONLINE Nema 23 Stepper Motor 3 Nm 4.2 A 4-Wire 10 mm Shaft for CNC Milling Lathe Plasma"
brand: "stepperonline"
price: "€ 96.70"
currency: EUR
in_stock: true
reviews_count: 6
category: "Stepperonline"
url: https://www.desertcart.ie/products/52325269-stepperonline-nema-23-stepper-motor-3-nm-4-2-4
store_origin: IE
region: Ireland
---

# 10 mm precision shaft 4.2 A rated current/phase 3.0 Nm holding torque STEPPERONLINE Nema 23 Stepper Motor 3 Nm 4.2 A 4-Wire 10 mm Shaft for CNC Milling Lathe Plasma

**Brand:** stepperonline
**Price:** € 96.70
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your CNC projects with precision and strength!

## Quick Answers

- **What is this?** STEPPERONLINE Nema 23 Stepper Motor 3 Nm 4.2 A 4-Wire 10 mm Shaft for CNC Milling Lathe Plasma by stepperonline
- **How much does it cost?** € 96.70 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/52325269-stepperonline-nema-23-stepper-motor-3-nm-4-2-4)

## Best For

- stepperonline enthusiasts

## Why This Product

- Trusted stepperonline brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust Build Quality:** Durable alloy steel and aluminum frame built to last
- • **Optimized for High RPM:** Up to 1000 RPM for fast, reliable milling and lathe operations
- • **Plug & Play Confidence:** 400mm cable length with clear 4-wire bipolar connection
- • **Precision in Every Step:** 1.8° step angle ensures ultra-smooth 200 steps/turn control
- • **Unmatched Power Delivery:** 3.0 Nm torque for heavy-duty CNC precision

## Overview

The STEPPERONLINE Nema 23 Stepper Motor delivers a commanding 3.0 Nm holding torque with a precise 1.8° step angle, powered by a robust 4.2 A current per phase. Designed for demanding CNC milling, lathe, and plasma applications, its durable alloy steel and aluminum construction ensures longevity. Featuring a 10 mm shaft and 400 mm cable, this bipolar stepper motor offers smooth, reliable performance up to 1000 RPM, making it the go-to choice for professionals seeking precision and power.

## Description

This is the strongest model of the Nema 23 stepper motor with 1.8 degree step angle (200 steps/turn) Each phase draws 4.2 A for a holding torque of 3.0 Nm. Electrical specifications: * Manufacturer Part Number:23HS45-4204S * Motor Type: Bipolar Stepper Motor * Step angle: 1.8 degrees. * Holding torque: 3.0Nm * Rated Current/Phase: 4.2A * Phase resistance: 0.9ohm * Inductance: 3.8 mH +/- 20% (1 kHz) Physical Specifications: * Frame Size: 57 x 57mm * Body Length: 113mm * Shank Diameter: 10mm * Shaft Length: 24mm * D-Cut Length: 20mm * Number of coils: 4 * Cable Length: 400mm * Weight: 1.8kg Connection: Black (A+), Green (A-), Red (B+), Blue (B-). Warning: Before the engine test, make sure the motor has continuous current or chopper drive control. Connecting to a power supply destroys the motor.

Review: this moter is good - fitted well works fine good buy
Review: Moteur costaud, câbles bien assez longs. C'est du classique et il fait parfaitement son travail.

## Features

- DE SHIP

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00PNEPW4C |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 59,257 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 56 in 3D Printer Motors |
| Customer Reviews | 4.7 4.7 out of 5 stars (404) |
| Date First Available | 16 Jan. 2015 |
| Horsepower | 3 Watts |
| Item Package Quantity | 1 |
| Item Weight | 1.67 kg |
| Item model number | 23HS45-4204S |
| Manufacturer | STEPPERONLINE |
| Material | Alloy Steel, Aluminium, Copper, Metal |
| Part Number | FBA_23HS45-4204S |
| Power Source | DC |
| Product Dimensions | 5.7 x 11.3 x 5.7 cm; 1.67 kg |
| Size | 57 x 57x113mm |
| Speed | 1000 RPM |
| Voltage | 36 Volts (DC) |

## Product Details

- **Brand:** STEPPERONLINE
- **Horsepower:** 3 Watts
- **Model name:** 23HS45-4204S
- **Speed:** 1000 RPM
- **Voltage:** 36 Volts (DC)

## Images

![STEPPERONLINE Nema 23 Stepper Motor 3 Nm 4.2 A 4-Wire 10 mm Shaft for CNC Milling Lathe Plasma - Image 1](https://m.media-amazon.com/images/I/61GNLS91CQL.jpg)

## Questions & Answers

**Q: Is there an adapter available to fit the 11mm input shaft of a 20:1 speed reducer nmrv030?**
A: They are researching it here, where the motor is sold. Wish I had an answer, but at least I'm not THAT guy.

**Q: How many RPMs will the motor run before the torque drops in half?**
A: The torque is highest at a slow 10 RPM. The torque drops linearly at the RPM increase. It starts to skip pulses because of low torque at about 200 RPM. I had to add a 100 tooth to 36 tooth xml timing pulleys to increase the torque.

**Q: Where can I get a gear that works with this 10mm shaft? Most of those I've seen are in standard, not metric units.**
A: I've had luck finding pulleys on EBay. I'm not sure about gears but it would be worth a shot if you haven't already looked. Also you could buy something to fit on a 3/8in shaft and drill it out to 10mm.

**Q: What is the maximum power output in Watts? I’m sure it’s higher than the 3W they have listed.**
A: Hello, 

The power is calculated as:
P = V *I* # of coils active, or equivalently 
P = I^2*R* # of coils active
For instance, if only one coil is active,
P=4.2^2*0.9*1 = 15.87 watts
If two coils are active, such as when the motor is holding a position, then the power doubles, which comes down to 31.75 watts. 

Hope this helps,

Hector

## Customer Reviews

### ⭐⭐⭐⭐⭐ this moter is good
*by L***O on 25 September 2020*

fitted well works fine good buy

### ⭐⭐⭐⭐⭐ Review
*by G***X on 29 December 2025*

Moteur costaud, câbles bien assez longs. C'est du classique et il fait parfaitement son travail.

### ⭐⭐⭐⭐⭐ Review
*by S***E on 22 February 2025*

used these for a rail system and an arduino build that required a good 50lbs of lift across two motors. These don't disappoint. They can heat up, so I set the stay current to 50% and they still hold steady but stay cool. Good motor.

## Frequently Bought Together

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-25*