--- product_id: 430293229 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: "4830.77 DT" currency: TND in_stock: true reviews_count: 5 category: "Cnctopbaos" url: https://www.desertcart.tn/products/430293229-cnctopbaos-rotation-5th-axis-rotary-table-cnc-4th-axis-axis store_origin: TN region: Tunisia --- # Nema23 stepper motor, 1.8° step angle 6:1 reduction ratio for precision Rust-proof aluminum alloy body 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:** 4830.77 DT **Availability:** ✅ In Stock ## Summary > ⚙️ Elevate your CNC game with precision and power — don’t get left behind! ## 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?** 4830.77 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/430293229-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 - • **Precision at Every Turn:** 0.3° step angle ensures ultra-fine rotational control for flawless milling and engraving. - • **Durable & Rust-Resistant:** Crafted from premium aluminum alloy with rust-proof coating to withstand heavy-duty industrial use. - • **Versatile 4th Axis Setup:** Includes K12 100mm 4-jaw self-centering chuck and MT2 tailstock for multi-dimensional machining. - • **Plug & Play CNC Integration:** Compatible with Mach3 and Weihong systems for seamless setup and precise pulse control. - • **Powerful Nema23 Stepper Motor:** Delivers 270oz-in torque with smooth, reliable 2-phase hybrid design for consistent performance. ## Overview The CNCTOPBAOS 4th Axis Rotary Table is a robust CNC accessory featuring a 6:1 reduction ratio harmonic gearbox, a high-torque Nema23 stepper motor, and a rust-proof aluminum alloy frame. Designed for milling machines, it offers ultra-precise 0.3° step increments, a 100mm self-centering 4-jaw chuck, and an MT2 tailstock for versatile 3D machining. Perfect for professionals demanding accuracy, durability, and seamless integration with popular CNC control systems. ## Description Package include:1set 5th rotary axis reducing ratio 50:1Center height: 73mmBench Diameter: 60 mmTotal height: 105mm4th Speed reducing ratio: 50:15th Speed reducing ratio: 50:1Stepper motor: two-phase stepper motor Nema23 (57mm)Size: 170MM*90MM*116MMWeight: 2.6KG 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 | | Brand | CNCTOPBAOS | | Brand Name | CNCTOPBAOS | | Customer Reviews | 4.2 out of 5 stars 43 Reviews | | Item Dimensions W x H | 5.7W x 5.7H centimeters | | Item Weight | 3.24 Kilograms | | Item weight | 3.24 Kilograms | | Manufacturer | Changzhou Rattm Motor Co.,Ltd | | Material | Aluminum | | Material Type | Aluminum | | Model | S23 | | Part Number | S23 | | Product dimensions | 5.7W x 5.7H centimeters | ## Product Details - **Brand:** CNCTOPBAOS - **Compatible devices:** Milling Machine - **Item diameter:** 100 Millimeters - **Item weight:** 10.23 Kilograms - **Material:** Aluminum ## 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) ![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 2](https://m.media-amazon.com/images/I/815UFULakPL.jpg) ![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 3](https://m.media-amazon.com/images/I/810bdcb+L1L.jpg) ![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 4](https://m.media-amazon.com/images/I/8166doXA2mL.jpg) ![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 5](https://m.media-amazon.com/images/I/81BE6BC7nxL.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 7 October 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 22 March 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 21 May 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/430293229-cnctopbaos-rotation-5th-axis-rotary-table-cnc-4th-axis-axis](https://www.desertcart.tn/products/430293229-cnctopbaos-rotation-5th-axis-rotary-table-cnc-4th-axis-axis) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-01*