---
product_id: 369016478
title: "CNCTOPBAOS Rotational 4th Axis A axis Rotary Table,K11-100mm 3 Jaw Chuck Dividing Head,Gapless Harmonic Gearbox Reducer Ratio 50:1 w/ 65mm Tailstock for CNC Router Engraving Milling Machine"
brand: "cnctopbaos"
price: "C$13211"
currency: NIO
in_stock: false
category: "Cnctopbaos"
url: https://www.desertcart.ni/products/369016478-cnctopbaos-rotational-4th-axis-a-axis-rotary-table-k11-100mm
store_origin: NI
region: Nicaragua
---

# 0.036° ultra-fine step angle precision 100mm K11 3-jaw self-centering chuck 50:1 gapless harmonic gearbox ratio CNCTOPBAOS Rotational 4th Axis A axis Rotary Table,K11-100mm 3 Jaw Chuck Dividing Head,Gapless Harmonic Gearbox Reducer Ratio 50:1 w/ 65mm Tailstock for CNC Router Engraving Milling Machine

**Brand:** cnctopbaos
**Price:** C$13211
**Availability:** ❌ Out of Stock

## Summary

> ⚙️ Elevate Your CNC Game with Precision That Commands Attention!

## Quick Answers

- **What is this?** CNCTOPBAOS Rotational 4th Axis A axis Rotary Table,K11-100mm 3 Jaw Chuck Dividing Head,Gapless Harmonic Gearbox Reducer Ratio 50:1 w/ 65mm Tailstock for CNC Router Engraving Milling Machine by cnctopbaos
- **How much does it cost?** C$13211 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/369016478-cnctopbaos-rotational-4th-axis-a-axis-rotary-table-k11-100mm)

## 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

- • **Robust & Reliable:** Crafted from premium aluminum alloy with anti-rust coating for long-lasting durability and professional-grade performance.
- • **Millimeter Mastery:** Achieve micro-accuracy with a 0.036° step angle, ensuring every cut is razor-sharp and repeatable.
- • **Precision Perfected:** Experience ultra-smooth rotation with a backlash-free 50:1 harmonic gearbox for flawless CNC engraving.
- • **Versatile Chuck Grip:** Secure your workpiece effortlessly with a 100mm K11 3-jaw self-centering chuck, adaptable to a wide clamping range.
- • **Complete CNC Solution:** Includes a powerful Nema23 stepper motor and 65mm tailstock with axial locking wrench for seamless setup and operation.

## Overview

The CNCTOPBAOS Rotational 4th Axis CNC Rotary Table features a gapless harmonic gearbox with a 50:1 reduction ratio, delivering ultra-precise 0.036° step increments. Built from high-quality aluminum alloy, it includes a 100mm K11 3-jaw self-centering chuck and a 65mm tailstock for stable, versatile workholding. Powered by a robust Nema23 stepper motor, this rotary table ensures smooth, backlash-free operation ideal for professional engraving, milling, and CNC routing applications.

## Description

Package include:1Set 4th axis gapless harmonic K11-100mm Ratio 50:1 (with nema23 stepper motor and 3 jaw chuck)1Pcs 65mm Tailstock1Set of Anti-clawDescriptions:Engraving machine fourth axis (A axis, Rotational Axis, CNC dividing head) gapless harmonic reducer gearboxChuck type: K11 100mm 3 jaw chuckCenter height: 65mmTotal height: 115mmAngle: 0.036°/ stepGear box output shaft diameter: 25mmReducing ratio: 50:1 Stepper motor: Nema23 57mm 3A 2-phase 4 wireWeight: 6.5KGParameter settings:The Mach3 system settings: the pulses for 1 required:( the motor 1 Circle of pulse number × the drive of subdivision number × reduction ratio) ÷ 360 degrees For example, the two-phase nema23 motor, the ubdivision number 16, the reduction ratio 50:1 (200 × 16 × 50) ÷ 360 = 444.44444444)Ncstudio system settings: the angle of a pulse walking:360 ÷ (the motor 1 Circle of pulse numberr × × the drive of subdivision number × reduction ratio)For example: the two-phase nema23 motor, the breakdown of the number 16, reduction ratio 50:1360 ÷ (200 × 16 × 50) = 0.00225Tailstock:Center Height: 65mmStretch distance: 50mmTop tip: Activity typeAxial locking wrench for tailstock

## Features

- Specifications of 4th Axis: Center height: 65 mm 2.56"; Total height:; 105 mm 4.13"; Angle: 0.036°/step ; Gearbox model: 17-50; Reduction ratio: 50:1; Base Material: Aluminum alloy; Size: 260x110x105 mm 10.2x4.34x4.13"; Weight: 6.8 KG / 14.98 LB
- Specifications of Chuck: K11-100 3 Jaw self-centering chuck; Diameter:100 mm 3.93 inch; With 3 Anti-claw and Wrench; Max input torque: 60N.m; Max Speed: 3500 R/min; External jaw clamping range: 30-80mm 1.18-3.15 inch.; Internal jaw clamping range: 2-30mm 0.08-1.18 inch; Internal jaw jamming range: 30-90mm 1.18-3.54 inch
- Specifications of Tailstock: Morse Taper 2 Live Center Movable MT2 Tailstock; Center Height: 65mm 2.56 inch; Expansion stroke: 45mm 1.77 inch; Stretch distance: 50mm 1.97 inch; Top tip: Activity type; With Axial locking wrench for tailstock; Weight: 2.5 KG 5.5 LB
- Specifications of Stepper Motor: Hybrid Nema23 Stepper Motor; Phase: 2-phase; Size: 57x57x56mm; Step Angle: 1.8°; Holding Torque: 12kg.cm/178oz-in/120N.cm; Rated Current:3A; Shaft dia:8mm; 4 Lead Wires: A+ to Red ; A- to Green ; B+ to Yellow ; B- to Blue
- Features: Adopting gapless harmonic gearbox,with 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 long service life

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07B2SL9SD |
| ASIN  | B07B2SL9SD |
| Brand Name | CNCTOPBAOS |
| Customer Reviews | 4.1 4.1 out of 5 stars (14) |
| Customer reviews | 4.1 4.1 out of 5 stars (14) |
| Date First Available  | 12 April 2018 |
| Included Components | Impact Wrench |
| Is Discontinued By Manufacturer  | No |
| Item Diameter | 100 Millimeters |
| Item Weight | 2.42 Kilograms |
| Item model number  | K11-100mm 50:1 |
| Manufacturer | Changzhou Rattm Motor Co.,Ltd |
| Manufacturer  | Changzhou Rattm Motor Co.,Ltd |
| Material Type | Aluminum |
| Model | K11-100mm 50:1 |
| Package Dimensions  | 50.8 x 28.45 x 20.32 cm; 2.42 kg |
| Part Number | S23 |
| UPC | 785004502735 |

## Product Details

- **Brand:** CNCTOPBAOS
- **Compatible devices:** Milling Machine
- **Item diameter:** 100 Millimeters
- **Item weight:** 2.42 Kilograms
- **Material:** Aluminum

## Images

![CNCTOPBAOS Rotational 4th Axis A axis Rotary Table,K11-100mm 3 Jaw Chuck Dividing Head,Gapless Harmonic Gearbox Reducer Ratio 50:1 w/ 65mm Tailstock for CNC Router Engraving Milling Machine - Image 1](https://m.media-amazon.com/images/I/71xYAtG0OaL.jpg)

## Available Options

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

## Frequently Bought Together

- CNCTOPBAOS CNC Router 4th Axis Rotation A axis,Engraving Milling Machine Rotary Table 3 Jaw 100mm Chuck Dividing Head,Gapless Harmonic Reducer Gearbox Ratio 100:1 w/ 65mm Tailstock
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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-10-04*