---
product_id: 109599797
title: "CNC Milling Machine Rotational Axis CNC Router Rotary Table Rotary a axis 4th Axis 65mm 3 Jaw Chuck Dividing Head w/ Nema17 stepper motor w/ 54mm Tailstock Reducing ratio 4:1 for CNC Engraving Machine"
brand: "cnctopbaos"
price: "€ 313.12"
currency: EUR
in_stock: true
reviews_count: 8
category: "Cnctopbaos"
url: https://www.desertcart.sk/products/109599797-cnc-milling-machine-rotational-axis-cnc-router-rotary-table-rotary
store_origin: SK
region: Slovakia
---

# 65mm center height for stability 80mm 3-jaw self-centering chuck 6:1 precision reduction ratio CNC Milling Machine Rotational Axis CNC Router Rotary Table Rotary a axis 4th Axis 65mm 3 Jaw Chuck Dividing Head w/ Nema17 stepper motor w/ 54mm Tailstock Reducing ratio 4:1 for CNC Engraving Machine

**Brand:** cnctopbaos
**Price:** € 313.12
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your CNC game with precision that turns heads!

## Quick Answers

- **What is this?** CNC Milling Machine Rotational Axis CNC Router Rotary Table Rotary a axis 4th Axis 65mm 3 Jaw Chuck Dividing Head w/ Nema17 stepper motor w/ 54mm Tailstock Reducing ratio 4:1 for CNC Engraving Machine by cnctopbaos
- **How much does it cost?** € 313.12 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/109599797-cnc-milling-machine-rotational-axis-cnc-router-rotary-table-rotary)

## Best For

- cnctopbaos enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Crafted from durable aluminum alloy with rust-proof coating for long-lasting, wear-resistant performance.
- • **Robust Chuck Grip:** 80mm K11-80 self-centering 3-jaw chuck clamps workpieces securely from 2mm to 70mm diameter.
- • **Tailstock Stability:** MT2 live center tailstock with 45mm expansion stroke guarantees steady support during complex cuts.
- • **Precision at Every Turn:** 6:1 reduction ratio ensures ultra-fine 0.3° step accuracy for flawless rotary machining.
- • **Versatile 4th Axis Power:** Perfect for 3D cylindrical, spiral, and circular engraving on CNC routers, lathes, and milling machines.

## Overview

The CNCTOPBAOS K11-80 4th Axis Rotary Dividing Head features a 6:1 reduction ratio for precise 0.3° step rotation, an 80mm self-centering 3-jaw chuck for versatile clamping, and a 65mm center height with MT2 tailstock for stable, high-quality CNC engraving and milling. Made from aluminum alloy with rust-proof coating, it’s engineered for durability and professional-grade performance in advanced CNC applications.

## Description

Rotary A Axis Visit the Store Rotary A Axis Visit the Store Rotary A+C Axis Visit the Store Rotary A+C Axis Stepper Motor Driver Visit the Store Stepper Motor Driver Stepper Motor Drivers Visit the Store Stepper Motor Drivers Stepper Motor Mount Visit the Store Stepper Motor Mount Stepper Motor Couplers Visit the Store Stepper Motor Couplers Breakout board Visit the Store Breakout board DC Switching Power Supply Visit the Store DC Switching Power Supply Nema17 Stepper Motor Visit the Store Nema17 Stepper Motor Nema23 Stepper Motor Visit the Store Nema23 Stepper Motor Nema34 Stepper Motor Visit the Store Nema34 Stepper Motor Closed Loop Servo Motor Visit the Store Closed Loop Servo Motor Offline CNC Controller Visit the Store Offline CNC Controller Nema23 Stepper Motor CNC Kit Visit the Store Nema23 Stepper Motor CNC Kit AC Servo Motor Kit Visit the Store AC Servo Motor Kit Worm Gear Reducer Visit the Store Worm Gear Reducer

Review: Good quality rotary axis and good service. - Great rotary axis. Works perfectly, and I can know use my CNC as a lathe for most things. It's larger than you would expect, so plan accordingly. Also, the one thing I wish it could do easily is replace the chuck. It's possible but not recommended. I had a bunch of questions about the device before ordering and got prompt and precise replies each time, so kudos to their excellent customer service.
Review: This thing has no business being as nice as it is for $255. - Update: I have modeled a cover for the belt and pulleys. Thingiverse ID: 7266411 Update: To learn how to update the settings in PathPilot (if installing on a Tormach), find me in the Tormach Operators Group on Facebook. Original: Every once in a while China really outdoes themselves. This is one of those times. This thing is simple, clean and accurate. Now, honestly, there isn't too much to these, but this little package for $250 is a great deal. I found a random $20 controller to go with this and it works great. Spins plenty fast, even with the 6:1 reduction. Mating it to my Tormach took some work, but in the end, operates perfectly. Tormach is not expecting a 4th axis with a 6:1 reduction ratio, so none of the micropulse pin settings on the stepper driver generate a proper 360 degree turn when commanding a 360 degree move. You have to go into an .inc file on the controller and change the 4th axis SCALE. Then, if you want it to turn faster, you have to change some speeds, also in the .ini files. It's all on the LinuxCNC forum. But very easy to do and saves $3000 versus a MicroARC. Highly recommended.

## Features

- Specifications of the K11-65mm CNC 4th Axis: Middle height: 54mm/2.12 inch; Total height: 85mm/ 3.34 inch; Angle: 0.3°/step; Diameter of gear output shaft: 20mm/ 0.78 inch, Reduction ratio: 4:1 belt delay mode
- Specifications of Chuck: Model: K01-63mm; Jaws: Three-jaw chuck; Chuck Diameter: 63mm/2.48 inch; Internal jaw clamping: 1-50mm/0.04-1.97 inch; External jaw clamping: 16-50mm/0.63-1.97 inch ; Centering precision: 0.05mm/0.0019 inch
- Specifications of Tailstock: Center height: 54mm; Top tip: activity type; Telescopic stroke: 30mm; Axial lock key for riding stock; Application: The fourth axis can be used for three-dimensional processing of cylinders, bends and circles,widely used in cnc router,milling machines,engraving machine etc
- Stepper motor: Nema17 2-phase stepper motor 45N.cm 64oz-in 1.7A; 4 Lead Wires: A+ to Red ; A- to Blue; B+ to Green ; B- to Black
- Advantages: Rust-proof dust cover, polishing and anode oxidation cover, rust protection coating; Stable 3 jaw chuck structure,fine workmanship,solid and practical jaw, excellent process to maximize service life

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07MDJNDNJ |
| Best Sellers Rank | #401,617 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #78 in Power Milling Machine Replacement Parts #7,546 in Power Tool Replacement Parts |
| Brand | CNCTOPBAOS |
| Brand Name | CNCTOPBAOS |
| Customer Reviews | 4.4 out of 5 stars 64 Reviews |
| Included Components | Rotary axis 4th axis, 3 jaw chuck, Nema17 stepper motor, 54mm Tailstock |
| Item Weight | 2.42 Kilograms |
| Manufacturer | Changzhou Rattm Motor Co.,Ltd |
| Material | Stainless Steel |
| Material Type | Stainless Steel |
| Model | K11-65 |
| Part Number | S23 |
| UPC | 681385631142 |

## Product Details

- **Brand:** CNCTOPBAOS
- **Voltage:** 4.2 Volts
- **Horsepower:** 500 Watts
- **Product Dimensions:** 2.24"W x 2.24"H
- **Material:** Metal

## Images

![CNC Milling Machine Rotational Axis CNC Router Rotary Table Rotary a axis 4th Axis 65mm 3 Jaw Chuck Dividing Head w/ Nema17 stepper motor w/ 54mm Tailstock Reducing ratio 4:1 for CNC Engraving Machine - Image 1](https://m.media-amazon.com/images/I/71Mf4HdBk8L.jpg)
![CNC Milling Machine Rotational Axis CNC Router Rotary Table Rotary a axis 4th Axis 65mm 3 Jaw Chuck Dividing Head w/ Nema17 stepper motor w/ 54mm Tailstock Reducing ratio 4:1 for CNC Engraving Machine - Image 2](https://m.media-amazon.com/images/I/81SEPtRjGkL.jpg)
![CNC Milling Machine Rotational Axis CNC Router Rotary Table Rotary a axis 4th Axis 65mm 3 Jaw Chuck Dividing Head w/ Nema17 stepper motor w/ 54mm Tailstock Reducing ratio 4:1 for CNC Engraving Machine - Image 3](https://m.media-amazon.com/images/I/81KbjIRaqoL.jpg)
![CNC Milling Machine Rotational Axis CNC Router Rotary Table Rotary a axis 4th Axis 65mm 3 Jaw Chuck Dividing Head w/ Nema17 stepper motor w/ 54mm Tailstock Reducing ratio 4:1 for CNC Engraving Machine - Image 4](https://m.media-amazon.com/images/I/81OfJ49tKGL.jpg)
![CNC Milling Machine Rotational Axis CNC Router Rotary Table Rotary a axis 4th Axis 65mm 3 Jaw Chuck Dividing Head w/ Nema17 stepper motor w/ 54mm Tailstock Reducing ratio 4:1 for CNC Engraving Machine - Image 5](https://m.media-amazon.com/images/I/71t4ndNevJL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good quality rotary axis and good service.
*by R***. on August 31, 2025*

Great rotary axis. Works perfectly, and I can know use my CNC as a lathe for most things. It's larger than you would expect, so plan accordingly. Also, the one thing I wish it could do easily is replace the chuck. It's possible but not recommended. I had a bunch of questions about the device before ordering and got prompt and precise replies each time, so kudos to their excellent customer service.

### ⭐⭐⭐⭐⭐ This thing has no business being as nice as it is for $255.
*by N***K on December 30, 2024*

Update: I have modeled a cover for the belt and pulleys. Thingiverse ID: 7266411 Update: To learn how to update the settings in PathPilot (if installing on a Tormach), find me in the Tormach Operators Group on Facebook. Original: Every once in a while China really outdoes themselves. This is one of those times. This thing is simple, clean and accurate. Now, honestly, there isn't too much to these, but this little package for $250 is a great deal. I found a random $20 controller to go with this and it works great. Spins plenty fast, even with the 6:1 reduction. Mating it to my Tormach took some work, but in the end, operates perfectly. Tormach is not expecting a 4th axis with a 6:1 reduction ratio, so none of the micropulse pin settings on the stepper driver generate a proper 360 degree turn when commanding a 360 degree move. You have to go into an .inc file on the controller and change the 4th axis SCALE. Then, if you want it to turn faster, you have to change some speeds, also in the .ini files. It's all on the LinuxCNC forum. But very easy to do and saves $3000 versus a MicroARC. Highly recommended.

### ⭐⭐⭐⭐ Decent performance but needs
*by V***D on October 14, 2025*

The CNC rotational axis works well for light tasks and setup is straightforward. However, I wish it produced more torque and speed for heavier or faster jobs. Overall, good for hobby use or small projects but may fall short for professional workloads.

## Frequently Bought Together

- CNC Rotary Axis 4th Axis with 3 Jaw Chuck,CNCTOPBAOS K11-80mm Hollow Shaft Dividing Head Rotational A Axis w/ 65mm Tailstock Reducing Ratio:6:1 for CNC Router Engraving Lathe Milling Machine
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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-05-29*