---
product_id: 463955873
title: "CNCTOPBAOS Rotation 5th Axis Rotary Table,CNC 4th Axis A Axis B C Axis Dividing Head,Waterproof Nema23 Stepper Motor,No Backlash Harmonic Reducer Gearbox 50:1 for CNC Router Engraving Milling Machine"
brand: "cnctopbaos"
price: "R18674"
currency: ZAR
in_stock: true
reviews_count: 8
category: "Cnctopbaos"
url: https://www.desertcart.co.za/products/463955873-cnctopbaos-rotation-5th-axis-rotary-table-cnc-4th-axis-axis
store_origin: ZA
region: South Africa
---

# Waterproof NEMA23 stepper motors 50:1 harmonic gearbox ratio Precision aluminum alloy build CNCTOPBAOS Rotation 5th Axis Rotary Table,CNC 4th Axis A Axis B C Axis Dividing Head,Waterproof Nema23 Stepper Motor,No Backlash Harmonic Reducer Gearbox 50:1 for CNC Router Engraving Milling Machine

**Brand:** cnctopbaos
**Price:** R18674
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate Your CNC Game with Precision That Commands Attention

## Quick Answers

- **What is this?** CNCTOPBAOS Rotation 5th Axis Rotary Table,CNC 4th Axis A Axis B C Axis Dividing Head,Waterproof Nema23 Stepper Motor,No Backlash Harmonic Reducer Gearbox 50:1 for CNC Router Engraving Milling Machine by cnctopbaos
- **How much does it cost?** R18674 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/463955873-cnctopbaos-rotation-5th-axis-rotary-table-cnc-4th-axis-axis)

## 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

- • **Compact Yet Powerful Design:** Lightweight 2.6kg aluminum alloy body with a sleek 170x90x115mm footprint fits seamlessly into your CNC setup without compromising strength.
- • **Durable Waterproof Stepper Motors:** Dual NEMA23 motors with robust metal casing and vibration-dampening design ensure quiet, reliable operation even in demanding environments.
- • **Versatile Multi-Axis Compatibility:** Supports 4th and 5th axis operations (A, B, C axes) for complex milling, engraving, and routing—unlock next-level manufacturing capabilities.
- • **Pro-Grade Build with Long Service Life:** Anti-rust coating and premium forging craftsmanship deliver durability and stability, making this rotary table a long-term CNC investment.
- • **Unmatched Precision with Zero Backlash:** Experience ultra-smooth, gapless rotation thanks to the 50:1 harmonic reducer gearbox—engineered for flawless CNC machining.

## Overview

The CNCTOPBAOS 5th Axis Rotary Table is a high-precision CNC accessory featuring a backlash-free 50:1 harmonic gearbox and dual waterproof NEMA23 stepper motors. Crafted from durable aluminum alloy with anti-rust coating, it offers smooth, quiet operation and versatile multi-axis support for advanced milling, engraving, and routing tasks. Ideal for professionals seeking reliable, compact, and long-lasting CNC performance.

## Description

CNCTOPBAOS Rotation 5th Axis Rotary Table,CNC 4th Axis A Axis B C Axis Dividing Head,Waterproof Nema23 Stepper Motor,No Backlash Harmonic Reducer Gearbox 50:1 for CNC Router Engraving Milling Machine - desertcart.com

Review: Good and Solid 4 Jaw Chuck Construction...Works as Expected! (read comment) - I received a new 4th. Axis from the seller, and this one works fine!...Kudos to the seller for sending me a new one even when I was out of the desertcart’s return window. After I opened the box and manually tested it I realized that the new one was able to spin without much effort, opposite to the first one I got that it was hard to rotate, but since I didn’t know what to expect I thought it was fine and hard to rotate due to the stepper motor (I didn’t remove it). So here is my recommendation if you get one of these: Recommendation Once you receive your package, unscrew and remove the stepper motor (completely), as if you were trying to adjust the belt tension; this shouldn’t void your warranty as you should be able to adjust the belt any time and this is not opening the spindle. Now and without the stepper motor, manually rotate the spindle/chuck; the spindle/chuck should rotate freely, without much effort but not as a skateboard wheel; great if does. Even if you feel a small amount of friction it should be fine as it should be normal on these spindles/chucks. If you have a hard time rotating it (and hear something like a clicking sound) then you should be considering exchange it. Hope this helps. Note: I’m leaving my original comment below in case you were following… Original Comment: Disappointed!...The spindle it's barely turning and seemed to got stuck only after a few times using it. this happened right after my desertcart return window expired, so I contacted the seller for diagrams to see if I could open it and do some clean up or add grease, but they do not have any. The seller suggested to "hammer the inside four claws from the front to the back" but that seems radical and I'm not certain it will not damage completely the spindle. I have seen videos of other 4th axis that they have retainers/big nuts that you unscrew to open the interior, but this model has none; not in the back or in the front, and I have not found a site or video that shows how to open any of these models. Do not recommend. UPDATE 10/9/2019 The seller contacted me again and as there are no schematics available, then it's willing to help me solve the issue in a different way; by sending me a new product for testing and review, and have expedited the shipment. I'll provide new comments an possible update the overall rating once I have tested and reviewed the new product.
Review: Very high quality with great customer support - Really nice quality for the price! The motion is very smooth, with zero perceptible backlash. Unfortunately, I did have to return it. No fault of the product itself, but due to unforeseen controller issues on my end. The unit is very difficult to backdrive, thanks to the 50:1 harmonic drive. The NEMA 23 motors may look small, but it's no issue, again, thanks to the drive ratio. If you ask nicely, the seller will provide you with a CAD file of the unit to help with programming.

## Features

- Specifications: Center height: 73mm(2.87"); Bench Diameter: 60mm(2.36"); Total height: 115mm(4.52"); 4th A Axis Speed reducing ratio: 50:1; 5th C Axis Speed reducing ratio: 50:1; Size: 170mmx90mmx115mm(6.69x3.54x4.52"); Net Weight: 2.6 KG/5.7 LB
- Two Nema23 Stepper Motor: Motor Type: Hybrid Stepper; Phase: 2-phase; Motor Size: 57x57x41mm; Step Angle: 1.8°; Holding Torque: 3.2kg.cm/45oz-in; Rated Current: 2A; Shaft diameter: 8mm; Number of Leads: 4-wires
- Advantages of Waterproof Motor: Using two waterproof stepper motors makes it safer to use; The motor is made of sturdy and durable metal; The perfect combination of rubber and rotor makes the internal structure more stable, reduces engine vibration and noise during operation, and makes the motor run quieter; The coil adopts pure copper enameled wire to ensure that long-term operation will not cause excessive temperature
- Harmonic Gapless Gearbox: Adopting a harmonic gapless gearbox, the product has higher precision, no backlash, high rigidity, high efficiency, stable structure, smooth operation, made of high quality aluminum alloy,anti rust coating process, fine workmanship, excellent forging process, and maximizes service life
- Application: Widely used in 5 Axis CNC Machining Centers, CNC Router, Milling Machine, Industrial Automation, Manufacturing, Engraving machines, Lathes, Three-dimensional Engraving,CNC Cutting Drilling Machine Accessories etc

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09V7FS3SN |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #171,044 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #14 in Power Milling Machines |
| Brand | CNCTOPBAOS |
| Customer Reviews | 4.1 4.1 out of 5 stars (43) |
| Date First Available | March 9, 2022 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 7.13 pounds |
| Item model number | S23 |
| Manufacturer | Changzhou Rattm Motor Co.,Ltd |
| Material | Aluminum |
| Part Number | S23 |
| Pattern | 5th-A |
| Product Dimensions | 2.24"W x 2.24"H |
| Shaft Diameter | 8 Millimeters |
| Style | Style-5th-B |

## Product Details

- **Brand:** CNCTOPBAOS
- **Item Weight:** 3.24 Kilograms
- **Material:** Aluminum
- **Product Dimensions:** 2.24"W x 2.24"H
- **Shaft Diameter:** 8 Millimeters

## Images

![CNCTOPBAOS Rotation 5th Axis Rotary Table,CNC 4th Axis A Axis B C Axis Dividing Head,Waterproof Nema23 Stepper Motor,No Backlash Harmonic Reducer Gearbox 50:1 for CNC Router Engraving Milling Machine - Image 1](https://m.media-amazon.com/images/I/61wQMiAYwRL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good and Solid 4 Jaw Chuck Construction...Works as Expected! (read comment)
*by A***R on October 7, 2019*

I received a new 4th. Axis from the seller, and this one works fine!...Kudos to the seller for sending me a new one even when I was out of the Amazon’s return window. After I opened the box and manually tested it I realized that the new one was able to spin without much effort, opposite to the first one I got that it was hard to rotate, but since I didn’t know what to expect I thought it was fine and hard to rotate due to the stepper motor (I didn’t remove it). So here is my recommendation if you get one of these: Recommendation Once you receive your package, unscrew and remove the stepper motor (completely), as if you were trying to adjust the belt tension; this shouldn’t void your warranty as you should be able to adjust the belt any time and this is not opening the spindle. Now and without the stepper motor, manually rotate the spindle/chuck; the spindle/chuck should rotate freely, without much effort but not as a skateboard wheel; great if does. Even if you feel a small amount of friction it should be fine as it should be normal on these spindles/chucks. If you have a hard time rotating it (and hear something like a clicking sound) then you should be considering exchange it. Hope this helps. Note: I’m leaving my original comment below in case you were following… Original Comment: Disappointed!...The spindle it's barely turning and seemed to got stuck only after a few times using it. this happened right after my Amazon return window expired, so I contacted the seller for diagrams to see if I could open it and do some clean up or add grease, but they do not have any. The seller suggested to "hammer the inside four claws from the front to the back" but that seems radical and I'm not certain it will not damage completely the spindle. I have seen videos of other 4th axis that they have retainers/big nuts that you unscrew to open the interior, but this model has none; not in the back or in the front, and I have not found a site or video that shows how to open any of these models. Do not recommend. UPDATE 10/9/2019 The seller contacted me again and as there are no schematics available, then it's willing to help me solve the issue in a different way; by sending me a new product for testing and review, and have expedited the shipment. I'll provide new comments an possible update the overall rating once I have tested and reviewed the new product.

### ⭐⭐⭐⭐⭐ Very high quality with great customer support
*by B***L on March 22, 2025*

Really nice quality for the price! The motion is very smooth, with zero perceptible backlash. Unfortunately, I did have to return it. No fault of the product itself, but due to unforeseen controller issues on my end. The unit is very difficult to backdrive, thanks to the 50:1 harmonic drive. The NEMA 23 motors may look small, but it's no issue, again, thanks to the drive ratio. If you ask nicely, the seller will provide you with a CAD file of the unit to help with programming.

### ⭐⭐⭐ Significant backlash
*by A***R on May 21, 2025*

Not sure what the other reviewers are talking about there is a ton of backlash. Out of the box the belt tension is far too low. Even after adjusting that, there is way too much backlash to use this for a proper milling set up. Not sure what it’s any good for.

## Frequently Bought Together

- CNCTOPBAOS Rotation 5th Axis Rotary Table,CNC 4th Axis A Axis B C Axis Dividing Head,Waterproof Nema23 Stepper Motor,No Backlash Harmonic Reducer Gearbox 50:1 for CNC Router Engraving Milling Machine
- BIGTREETECH SKR V1.4 Turbo 32bit Control Board DIY for Most FDM 3D Priners Mainbaord Compatible TFT Series Touch Screen/ 12864LCD Support TMC2209/TMC2208/TMC2130

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-23*