

⚙️ Elevate your CNC game with precision and power — don’t let your projects settle for less!
The CNCTOPBAOS CNC Rotary Axis 4th Axis is a high-precision rotary table featuring a 6:1 reduction ratio, a 100mm K11 3-jaw self-centering chuck, and a 65mm center height MT2 tailstock. Crafted from durable aluminum alloy with rust-proof coating, it supports stable and accurate 3D machining on CNC routers, lathes, engraving, and milling machines. Ideal for professionals and hobbyists seeking to expand their CNC capabilities with reliable, versatile, and precise rotational control.









| ASIN | B07B2RTBGZ |
| Amperage | 4 Amps |
| Assembled Diameter | 100 Millimeters |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #214,066 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #36 in Electric Motor Accessories |
| Brand | CNCTOPBAOS |
| Customer Reviews | 4.4 4.4 out of 5 stars (62) |
| Cutting Diameter | 100 Millimeters |
| Date First Available | May 12, 2017 |
| Included Components | Wrench |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 15.5 ounces |
| Item model number | K11-100 |
| Manufacturer | Changzhou Rattm Motor Co.,Ltd |
| Material | Copper |
| Part Number | S23 |
| Power Source | Corded Electric |
| Size | 100mm |
| Style | K11-100MM |
| UPC | 785004502728 |
| Voltage | 500 Volts |
R**.
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.
V**D
Decent performance but needs
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.
N**K
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.
M**.
Best 4th axis for home CNC
Very nice unit. I could not find any backlash or any play. Got it in just two days. It worked right out of the box. Price is better that Ebay. I'm going to use 2" aluminum blocks under the unit to turn pieces up to 9" diameter, without them you can do 5" diameter. K11-100mm CNC Router Engraving Machine Rotational A 4th Axis 100mm 3 Jaw Chuck+65mm Tailstock (Reducing ratio:6:1)
J**N
Bien
C**P
Tailstock bearing damaged (UPDATED very good customer service)
Just received the package. I noticed that the ball bearing that holds the tip of the tailstock is blocked or damaged, I was able to lose it with WD40 but still, it has a lot of friction. There is no instruction or information on how to fix this. Customer service helped me to solve the issue and I am pleased with the results. Four stars due to the initial issue
D**S
This will save so much time!
I aleays disliked having to change tools. This is definitely worth the purchase. Price is amazing and from what i can tell really good quality!
J**O
llego muy rapido. no lo he instalado aun pero se ve muy bien.
Trustpilot
1 day ago
2 weeks ago