---
product_id: 328337853
title: "CNCTOPBAOS K12-100mm CNC Router Milling Machine Rotational Axis 4th Axis A axis Rotary Table A axis 100mm 4 jaw chuck dividing head,MT2 65mm Tailstock Reducing ratio 6:1 for CNC Engraving Machine"
brand: "cnctopbaos"
price: "S/.3475"
currency: PEN
in_stock: true
reviews_count: 5
category: "Cnctopbaos"
url: https://www.desertcart.pe/products/328337853-cnctopbaos-k12-100mm-cnc-router-milling-machine-rotational-axis-4th
store_origin: PE
region: Peru
---

# 100mm K12 4-jaw self-centering chuck 6:1 precision reduction ratio Nema23 1.8° step angle stepper motor CNCTOPBAOS K12-100mm CNC Router Milling Machine Rotational Axis 4th Axis A axis Rotary Table A axis 100mm 4 jaw chuck dividing head,MT2 65mm Tailstock Reducing ratio 6:1 for CNC Engraving Machine

**Brand:** cnctopbaos
**Price:** S/.3475
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your CNC game with precision and power that commands attention!

## Quick Answers

- **What is this?** CNCTOPBAOS K12-100mm CNC Router Milling Machine Rotational Axis 4th Axis A axis Rotary Table A axis 100mm 4 jaw chuck dividing head,MT2 65mm Tailstock Reducing ratio 6:1 for CNC Engraving Machine by cnctopbaos
- **How much does it cost?** S/.3475 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/328337853-cnctopbaos-k12-100mm-cnc-router-milling-machine-rotational-axis-4th)

## 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 Endure:** Crafted from premium aluminum alloy with rust-proof coating for long-lasting, professional-grade reliability.
- • **Robust Chucking Power:** Secure your workpiece with a durable 100mm K12 4-jaw self-centering chuck, built to last.
- • **Tailstock Versatility:** MT2 live center tailstock with 50mm stretch ensures perfect alignment and stability on complex jobs.
- • **Smooth & Stable Motion:** Powered by a high-torque Nema23 stepper motor delivering 270oz-in for consistent performance.
- • **Precision at Every Turn:** Experience ultra-fine 0.3° step rotation for flawless 4th axis CNC milling.

## Overview

The CNCTOPBAOS K12 100mm 4th Axis CNC Rotary Table combines a 6:1 reduction ratio gearbox with a robust 100mm 4-jaw self-centering chuck and a high-torque Nema23 stepper motor. Designed for precision 3D cylindrical and spiral engraving, it features a durable aluminum alloy build, a versatile MT2 tailstock with 50mm stroke, and fine 0.3° step increments, making it an essential upgrade for professional CNC milling machines.

## Description

Package include:1set 4th axis K12 100mm ( Includes stepper motor and 4 jaw chuck) Ratio 6:11 x 65mm MT2 Tailstock Descriptions:Chuck type: K12 100mm 4 jaw centering chuckCenter height: 65mmTotal height: 115mmAngle: 0.3°/ step Gear box output shaft diameter: 25mmReducing ratio: 6:1(belt deceleration mode)Stepper motor: Nema23 57mm 3A 2-phase 4 wireAccessories: Set of Anti-claw and wrenchesThe fourth axis parameter settings:Mach3 system settings: the pulses required for 1°(Motor 1 lap pulses x Driver fine fraction x Reduction ratio) ÷ 360°For example: 57mm 2- phase stepper motor, fine fraction of 16, reduction ratio 6:1(200 x 16 x 6 ) / 360=53.33333)Weihong system settings: 1 pulse along the angle 360°/(Motor 1 lap pulses x Driver fine fraction x Reduction ratio)For example: 57mm 2- phase stepper motor, fine fraction of 16, reduction ratio 6:1360 / (200 x 16 x 6) =0.001875Tailstock type MT2Center Height: 65mmStretch distance: 50mmTop tip: Activity typeAxial locking wrench for tailstockNema23 stepper motor 76mm Shaft Diameter: 8 mmStep Angle:1.8Current: 3ATemperature Rise: 80 c maxInsulation Resistance: 100MOhm(500V DC)Holding Torque: 18kg.cm

Review: Good and Solid 4 Jaw Chuck Construction...Works as Expected! (read comment)
Review: Very high quality with great customer support

## Features

- Specifications of 4th Axis: Center height: 65 mm/2.56 inch; Total height:; 115 mm/4.5 inch; Angle: 0.3°/step ; Reduction ratio: 6:1; Base Material: Aluminum alloy; Size: 210x168x115 mm/8.3x6.6x4.5 inch; Weight: 7.9 KG/17.4 LB; Inner through hole diameter/shaft hollow diameter is 22 mm/0.86 inch; Output shaft diameter:30 mm/1.18 inch
- Nema23 Stepper Motor: Phase: 2 Phase; Type: Hybrid; Step Angle: 1.8°; Current: 3.0A; Holding torque: 270oz-in/1.8Nm; Shat diameter: 8mm; 4 Lead Wires: A+ to Red ; A- to Green ; B+ to Yellow ; B- to Blue; Motor Size: 57x57x76 mm
- Specifications of MT2 Tailstock: Morse Taper 2 Live Center Movable MT2 Tailstock; Center Height: 65 mm/2.56 inch; Expansion stroke: 45 mm1.77 inch; Stretch distance: 50 mm/1.97 inch; Top tip: Activity type; With Axial locking wrench for tailstock; Exquisite workmanship,Durable,Stable performance,Sturdy and Wear-resistant; Weight: 2.5 KG/5.5 LB
- Chuck Type: K12-100 4-Jaw self-centering chuck; Diameter:100mm; Max input torque: 60 N.m; Max Speed: 3500 R/min; External jaw clamping range: 30-80 mm/1.18-3.15 inches.; Internal jaw clamping range: 2-30 mm/0.08-1.18 inches; Internal jaw jamming range: 30-90 mm/1.18-3.54 inches; With four Anti-claw and Wrench
- Advantages: Rust proof coating process,stable 4 jaw chuck structure,fine workmanship,solid and practical jaw, excellent process to maximize service life;Application: The fourth axis can be used for three-dimensional processing of cylinders, bends and circles. The fourth axis engraving machine can be used for engraving spirals, scars etc

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07B2RX1BK |
| Brand | CNCTOPBAOS |
| Brand Name | CNCTOPBAOS |
| Capacity | 100 Millimeters |
| Compatible Devices | Milling Machine |
| Compatible devices | Milling Machine |
| Customer Reviews | 4.1 out of 5 stars 40 Reviews |
| Handle Type | hand-tightened |
| Included Components | 4th axis K12 100mm, stepper motor, 4 jaw chuck, 65mm Tailstock |
| Item Diameter | 1E+2 Millimeters |
| Item Weight | 10.23 Kilograms |
| Item diameter | 1E+2 Millimeters |
| Item weight | 10.23 Kilograms |
| Lock Type | Self Centering |
| Manufacturer | CNCTOPBAOS |
| Material | Aluminum |
| Material Type | Aluminum |
| UPC | 785004502711 |

## Product Details

- **Brand:** CNCTOPBAOS
- **Material:** Aluminum
- **Item diameter:** 1E+2 Millimeters
- **Item weight:** 10.23 Kilograms
- **Compatible devices:** Milling Machine

## Images

![CNCTOPBAOS K12-100mm CNC Router Milling Machine Rotational Axis 4th Axis A axis Rotary Table A axis 100mm 4 jaw chuck dividing head,MT2 65mm Tailstock Reducing ratio 6:1 for CNC Engraving Machine - Image 1](https://m.media-amazon.com/images/I/61BG6gz7htL.jpg)

## Questions & Answers

**Q: Whats the difference between the K11 100mm chuch vs the K12 100mm chuck? Thanks.**
A: K11-100mm chuck is 3 jaw chuck,but K12-100mm chuck is 4 jaw chuck

**Q: What is the maximum size of stock that would fit in the chuck?**
A: 100MM Chuck:

Internal Jaw clamping range is 2-30mm
Internal Jaw jamming range is 30-90mm
External Jaw clamping range is 30-80mm

**Q: What all do i need to connect this to a fox alien cnc machine?**
A: match the connectors on your CNC. unplug an axis and plug it in

**Q: Could this be used for building a metal lathe?**
A: Yes,it can.

## Customer Reviews

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



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



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



## Frequently Bought Together

- CNCTOPBAOS K12-100mm CNC Router Milling Machine Rotational Axis A 4th Axis Rotary Table 100mm 4 Jaw Chuck Dividing Head,MT2 65mm Tailstock Reducing Ratio 6:1 for CNC Engraving Machine
- STEPPERONLINE High Torque Nema 23 CNC Stepper Motor 114mm 425oz.in/3Nm CNC Mill Lathe Router

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-01-27*