--- product_id: 15385014 title: "47:1 Planetary Gearbox Nema 23 Stepper Motor 2.8A for DIY CNC Mill Lathe Router" brand: "stepperonline" price: "€ 183.85" currency: EUR in_stock: true reviews_count: 8 category: "Stepperonline" url: https://www.desertcart.es/products/15385014-47-1-planetary-gearbox-nema-23-stepper-motor-2-8a store_origin: ES region: Spain --- # 40Nm holding torque powerhouse 0.039° ultra-fine step angle precision 46.656:1 planetary gear ratio 47:1 Planetary Gearbox Nema 23 Stepper Motor 2.8A for DIY CNC Mill Lathe Router **Brand:** stepperonline **Price:** € 183.85 **Availability:** ✅ In Stock ## Summary > ⚙️ Power Precision Perfected: Own the torque, master the mill! ## Quick Answers - **What is this?** 47:1 Planetary Gearbox Nema 23 Stepper Motor 2.8A for DIY CNC Mill Lathe Router by stepperonline - **How much does it cost?** € 183.85 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/15385014-47-1-planetary-gearbox-nema-23-stepper-motor-2-8a) ## 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 - • **Gearbox Mastery:** 46.656:1 planetary gearbox ensures ultra-low speed with high torque efficiency (73%) for smooth, reliable performance. - • **Precision at its Peak:** Achieve micro-step accuracy with a razor-sharp 0.039° step angle for flawless CNC control. - • **Plug & Play Confidence:** 4-wire bipolar stepper design compatible with constant current or chopper drives for seamless integration and longevity. - • **Built for Heavy-Duty DIY:** Compact 60x60mm frame with a sturdy 1.7kg build, engineered to handle demanding CNC, lathe, and router projects. - • **Torque That Moves Mountains:** Delivering a robust 40Nm holding torque, this motor powers through the toughest milling and routing tasks. ## Overview The STEPPERONLINE 47:1 Planetary Gearbox NEMA 23 Stepper Motor combines a high-precision 0.039° step angle with a powerful 40Nm holding torque, driven by a 46.656:1 planetary gearbox. Designed for demanding DIY CNC mills, lathes, and routers, its compact 60x60mm frame and 1.7kg weight ensure durability and performance. Ideal for professionals seeking precise, low-speed, high-torque motion control with reliable bipolar stepper technology. ## Description This high precision NEMA 23 Stepper motor has an integrated Planetary gearbox with a 46.656:1 gear ratio, the resolution reach 0.039° step angle. It's a good solution in applications that need very low rotation speeds and/or lots of torque. Electrical Specification * Manufacturer Part Number: 23HS22-2804S-PG47 * Motor Type: Bipolar Stepper * Step Angle: 0.039° * Holding Torque: 40Nm * Rated Current/phase: 2.8A * Phase Resistance: 0.9ohms * Recommended Voltage: 24-48V * Inductance : 2.5mH±20%(1KHz) Gearbox Specifications * Gearbox Type: Planetary * Gear Ratio : 46.656:1 * Efficiency: 73% * Backlash at No-load :<=1.5° * Max.Permissible Torque: 40Nm(2832oz-in) * Moment Permissible Torque: 60Nm(4248oz-in) * Shaft Maximum Axial Load: 100N * Shaft Maximum Radial Load : 200N Physical Specifications * Frame Size: 60 x 60mm * Motor Length: 56mm * Gearbox Length: 72mm * Shaft Diameter: Φ12mm * Shaft Length: 30mm * Key-way length: 20mm * Key-way width : 4mm * Number of Leads: 4 * Lead Length: 500mm * Weight : 1.7kg Connection: Black(A+), Green(A-), Red(B+), Blue(B-) Warning: Make sure the motor connect to a constant current or chopper drive controller before you test motor. Connecting the motor directly to a power supply will destroy the motor. Review: Big! - Heavy duty, high quality hobby stepper. Pay attention to the dimensions the transmission on this one is bigger than the actual motor. Review: Great Motor - Great stepper motor. Plenty of torque for the job. I am using this to drive a conveyor belt with precise positional accuracy. I have sheared gears and keys before stripping anything internal to the motor. Obviously not water proof, so ensure you protect it from the elements. ## Features - Bipolar Stepper, Holding Torque: 40Nm ,Rated Current/phase : 2.8A - Gearbox Type: Planetary - Frame Size: 60 x 60mm / 2.36x 2.36" , Motor Length: 56mm / 2.20" ,Gearbox Length :72mm / 2.83" - 4-wires (Black, Green, Blue, Red) , Weight: 1.7kg ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00WAV322U | | Best Sellers Rank | #420,067 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #399 in Electrical Motor Controls #884 in Edge Treatment & Grooving Router Bits | | Brand Name | STEPPERONLINE | | Customer Reviews | 4.7 4.7 out of 5 stars (12) | | Item Weight | 1.7 Kilograms | | Manufacturer | OSM Technology Co.,Ltd. | | Material Type | lead | | Model | 23HS22-2804S-PG47 | | Model Name | gear | | Shaft Diameter | 12 Millimeters | | Speed | 2800 RPM | | UPC | 701056591893 | | Voltage | 48 Volts | ## Product Details - **Brand:** STEPPERONLINE - **Material:** lead - **Model Name:** gear - **Speed:** 2800 RPM - **Voltage:** 48 Volts ## Images ![47:1 Planetary Gearbox Nema 23 Stepper Motor 2.8A for DIY CNC Mill Lathe Router - Image 1](https://m.media-amazon.com/images/I/61l4blBF00L.jpg) ## Questions & Answers **Q: What is the maximum speed output of the gearbox?** A: The maximum speed output is about 25RPM. **Q: Is there a torque curve available for this motor?** A: Stepper motors definitely have torque curves. They are not constant torque. Planetary drives do not lock movement, they can be backdriven. Most likely the best torque performance will be had from this motor between 0 to 300 RPM. Other 2.8A motors I have (with published torque curves) produce about 100 oz. in. at 600 RPM. **Q: What types of voltage supplies would you apply to this motor? For example, a car battery.** A: 24Vdc is what i would recommend to keep the current down. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Big! *by D***S on May 21, 2024* Heavy duty, high quality hobby stepper. Pay attention to the dimensions the transmission on this one is bigger than the actual motor. ### ⭐⭐⭐⭐⭐ Great Motor *by T***D on July 20, 2025* Great stepper motor. Plenty of torque for the job. I am using this to drive a conveyor belt with precise positional accuracy. I have sheared gears and keys before stripping anything internal to the motor. Obviously not water proof, so ensure you protect it from the elements. ### ⭐⭐⭐⭐⭐ Small high torque/powerful motor *by M***K on July 24, 2018* Great small motor with a lot of power and was at a great price conpared to McMaster Carr. Haven't had a problem with the motor yet. ## Frequently Bought Together - STEPPERONLINE 47:1 Planetary Gearbox Nema 23 Stepper Motor 2.8A for DIY CNC Mill Lathe Router - STEPPERONLINE NEMA 23 Stepper Motor (Economy Geared Stepper Motor) Alloy Steel Mounting Bracket ST-M2 --- ## 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.es/products/15385014-47-1-planetary-gearbox-nema-23-stepper-motor-2-8a](https://www.desertcart.es/products/15385014-47-1-planetary-gearbox-nema-23-stepper-motor-2-8a) --- *Product available on Desertcart Spain* *Store origin: ES* *Last updated: 2026-05-23*