--- product_id: 182492323 title: "Nema 23 Stepper Motor 4.2A 3.0Nm (425oz.in) 100mm Length with 8mm Shaft for CNC Mill Lathe Router" brand: "hobbyunlimited" price: "VT19396" currency: VUV in_stock: true reviews_count: 8 category: "Hobby Unlimited" url: https://www.desertcart.vu/products/182492323-nema-23-stepper-motor-4-2a-3-0nm-425oz-in store_origin: VU region: Vanuatu --- # 100mm compact length 8mm precision shaft 3.0Nm torque powerhouse Nema 23 Stepper Motor 4.2A 3.0Nm (425oz.in) 100mm Length with 8mm Shaft for CNC Mill Lathe Router **Brand:** hobbyunlimited **Price:** VT19396 **Availability:** ✅ In Stock ## Summary > ⚡ Power your precision with the ultimate Nema 23 stepper motor! ## Quick Answers - **What is this?** Nema 23 Stepper Motor 4.2A 3.0Nm (425oz.in) 100mm Length with 8mm Shaft for CNC Mill Lathe Router by hobbyunlimited - **How much does it cost?** VT19396 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/182492323-nema-23-stepper-motor-4-2a-3-0nm-425oz-in) ## Best For - hobbyunlimited enthusiasts ## Why This Product - Trusted hobbyunlimited brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Yet Mighty:** 100mm length fits seamlessly into your CNC mill, lathe, or router setups without bulk. - • **Precision Engineering:** 8mm motor shaft ensures smooth, accurate motion control for professional-grade results. - • **Unmatched Torque Performance:** Delivers a robust 3.0Nm (425oz.in) holding torque for heavy-duty CNC tasks. - • **Optimized Power Compatibility:** Designed for 24-50VDC and 4.2A drivers to maximize efficiency and reliability. - • **Built for Makers Who Demand More:** The most powerful Nema 23 stepper motor on the market—engineered to elevate your CNC projects. ## Overview The Nema 23 Stepper Motor by HobbyUnlimited is a high-torque, 3.0Nm (425oz.in) motor with a compact 100mm length and an 8mm shaft, optimized for CNC mills, lathes, and routers. It operates efficiently within 24-50VDC and 4.2A current, delivering professional-grade performance in a durable, well-engineered package favored by makers and machinists alike. ## Description Specifications:Step Angle: 1.8°Holding Torque: 3.0Nm(425oz.in)Rated Current/phase: 4.2APhase Resistance: 0.9ohmsRecommended Voltage: 24-48VInductance: 3.8mH±20%(1KHz)Weight: 1.8kgLead Length: 30cm8mm Motor Shaft Review: These are pretty well-made. I think my only real complaint is ... - I was surprised to see such a large stepper for so cheap, so I decided to buy one and see how well it was put together. Well, I've since bought two more, and I plan on using them in a CNC router/milling machine. These are pretty well-made. I think my only real complaint is that the shaft is a D-shaft and not a keyed shaft, but I suppose it probably won't matter in the end. Can't wait to get the machine running. I did test the motor, and while I don't have a way to verify the torque rating, it seems relatively accurate. Given the price, I don't think I'd mind if it only really did 75% of the "rated" torque. Review: Motor - Was ok but smaller than expected ## Features - Nema 23 100mm length stepper motor. - 3.0Nm (425oz.in) torque. - The most powerful Nema 23 stepper motor available. Ideal for CNC Mill Lathe Router. - Recommend using stepper motor driver with voltage of 24-50VDC and at least 4.2A current. - 8mm motor shaft. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B081VD4C28 | | Best Sellers Rank | #273,607 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,554 in Router Parts & Accessories #2,383 in Power Tool Replacement Parts | | Brand | HobbyUnlimited | | Brand Name | HobbyUnlimited | | Customer Reviews | 4.5 out of 5 stars 130 Reviews | | Horsepower | 3 Watts | | Item Dimensions W x H | 4.44"W x 2.24"H | | Manufacturer | HobbyUnlimited | | Material | lead | | Material Type | lead | | Product Dimensions | 4.44"W x 2.24"H | | Speed | 30 RPM | | UPC | 720066769252 | | Voltage | 36 Volts | ## Product Details - **Brand:** HobbyUnlimited - **Horsepower:** 3 Watts - **Product Dimensions:** 4.44"W x 2.24"H - **Speed:** 30 RPM - **Voltage:** 36 Volts ## Images ![Nema 23 Stepper Motor 4.2A 3.0Nm (425oz.in) 100mm Length with 8mm Shaft for CNC Mill Lathe Router - Image 1](https://m.media-amazon.com/images/I/71WXc-bpBiL.jpg) ![Nema 23 Stepper Motor 4.2A 3.0Nm (425oz.in) 100mm Length with 8mm Shaft for CNC Mill Lathe Router - Image 2](https://m.media-amazon.com/images/I/61+qwk6AsfL.jpg) ![Nema 23 Stepper Motor 4.2A 3.0Nm (425oz.in) 100mm Length with 8mm Shaft for CNC Mill Lathe Router - Image 3](https://m.media-amazon.com/images/I/714DQ3+s1ZL.jpg) ![Nema 23 Stepper Motor 4.2A 3.0Nm (425oz.in) 100mm Length with 8mm Shaft for CNC Mill Lathe Router - Image 4](https://m.media-amazon.com/images/I/51NLqezjW0L.jpg) ![Nema 23 Stepper Motor 4.2A 3.0Nm (425oz.in) 100mm Length with 8mm Shaft for CNC Mill Lathe Router - Image 5](https://m.media-amazon.com/images/I/515o+PvlFUL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: where can i find a schematic of the dimensions for this nema 23 stepper motor?** A: Google "23HS45-4204S datasheet". 23HS45-4204S is the part number of the motor. The first page of links will have the motor datasheet which includes a mechanical drawing for the dimensions and a electrical schematic for the wiring. When I run the google search the first link I see is a sales page that includes the datasheet in the form of a PDF link. **Q: How many wires is this?** A: 4 **Q: Will my tb6600 driver work with this motor?** A: It should work, the drive is on the smaller side so it might overhear if you use at a higher duty cycle. **Q: What are the motor specs for Mach 3 setup?** A: Ask the supplier of your main board, i dont think its determined by motor. ## Customer Reviews ### ⭐⭐⭐⭐⭐ These are pretty well-made. I think my only real complaint is ... *by K***E on April 8, 2018* I was surprised to see such a large stepper for so cheap, so I decided to buy one and see how well it was put together. Well, I've since bought two more, and I plan on using them in a CNC router/milling machine. These are pretty well-made. I think my only real complaint is that the shaft is a D-shaft and not a keyed shaft, but I suppose it probably won't matter in the end. Can't wait to get the machine running. I did test the motor, and while I don't have a way to verify the torque rating, it seems relatively accurate. Given the price, I don't think I'd mind if it only really did 75% of the "rated" torque. ### ⭐⭐⭐⭐⭐ Motor *by A***R on December 22, 2025* Was ok but smaller than expected ### ⭐⭐⭐⭐⭐ Great Motor. *by B***N on January 27, 2019* Bought these for my first CNC build. Motors work great without issue. Once I received them, a quick web search of the model/part number gave me a data sheet, which gave me everything I needed to hook them up. If you are a newb like me, keep in mind the 4.2a current rating. A cheap $7 driver wont cut it. These bad boys need big-boy drivers. When construction was complete, and testing began, cheap drivers worked fine. When cutting, the cheap drivers just couldn't keep up. Spend the money to buy good drivers to take full advantage of these motors performance. ## Frequently Bought Together - Nema 23 Stepper Motor 4.2A 3.0Nm (425oz.in) 100mm Length with 8mm Shaft for CNC Mill Lathe Router - Nema 23 Stepper Motor 2.8A 1.9Nm (269oz.in) 76mm Length with 8mm Shaft for CNC Mill Lathe Route - CNC Digital Stepper Driver DM556 Stepper Motor Controller 2-phase Stepper Motor Driver 20-50V DC Max 5.6A 128 subdivision For Nema 23, 24 and Nema 34 stepper motor --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/182492323-nema-23-stepper-motor-4-2a-3-0nm-425oz-in](https://www.desertcart.vu/products/182492323-nema-23-stepper-motor-4-2a-3-0nm-425oz-in) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-18*