--- 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: "$U61451" currency: UYU in_stock: true reviews_count: 5 category: "Cnctopbaos" url: https://www.desertcart.uy/products/430293229-cnctopbaos-rotation-5th-axis-rotary-table-cnc-4th-axis-axis store_origin: UY region: Uruguay --- # Waterproof NEMA23 stepper motors No-backlash precision gearbox 50:1 harmonic drive ratio 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:** $U61451 **Availability:** ✅ In Stock ## Summary > ⚙️ Elevate your CNC game with precision and power that won’t quit! ## 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?** $U61451 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/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 - • **Compact Powerhouse:** With a sleek 170x90x115mm footprint and just 2.6kg weight, it fits seamlessly into your CNC setup without bulk. - • **Precision Perfected:** Experience ultra-smooth, backlash-free rotation with a 50:1 harmonic reducer gearbox that guarantees machining accuracy. - • **Plug & Play Versatility:** Compatible with 4th and 5th axis CNC routers, milling machines, and engraving centers—upgrade your workflow effortlessly. - • **Engineered for Endurance:** Crafted from high-quality aluminum alloy with anti-rust coating, this rotary table is built to last through countless projects. - • **Built to Brave the Elements:** Dual waterproof NEMA23 stepper motors ensure reliable, quiet operation even in demanding industrial environments. ## Overview The CNCTOPBAOS 5th Axis Rotary Table features a robust 50:1 harmonic gapless gearbox for zero backlash and high rigidity, paired with dual waterproof NEMA23 stepper motors for quiet, stable operation. Its compact aluminum alloy design (170x90x115mm, 2.6kg) is engineered for durability and precision, making it ideal for advanced 4th and 5th axis CNC machining, engraving, and milling applications. ## 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: 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: 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 | | ASIN | B09V7FS3SN | | Batteries Included? | No | | Batteries Required? | No | | Customer Reviews | 4.1 4.1 out of 5 stars (40) | | Customer reviews | 4.1 4.1 out of 5 stars (40) | | Date First Available | 15 April 2022 | | Date First Available | 15 April 2022 | | Is Discontinued By Manufacturer | No | | Item Package Quantity | 1 | | Item Weight | 3.24 Kilograms | | Item model number | S23 | | Item model number | S23 | | Manufacturer | Changzhou Rattm Motor Co.,Ltd | | Manufacturer | Changzhou Rattm Motor Co.,Ltd | | Material | Aluminum | | Part number | S23 | | Pattern | 5th-A | | Product Dimensions | 5.7 x 5.7 x 5.7 cm; 3.24 kg | | Product Dimensions | 5.7 x 5.7 x 5.7 cm; 3.24 kg | | Style | Style-5th-B | ## Product Details - **Brand:** CNCTOPBAOS - **Item weight:** 3.24 Kilograms - **Manufacturer:** Changzhou Rattm Motor Co.,Ltd - **Material:** Aluminum - **Product dimensions:** 5.7W x 5.7H centimeters ## 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 ### ⭐⭐⭐⭐⭐ Review *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. ### ⭐⭐⭐⭐⭐ Review *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. ### ⭐⭐⭐ Review *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.uy/products/430293229-cnctopbaos-rotation-5th-axis-rotary-table-cnc-4th-axis-axis](https://www.desertcart.uy/products/430293229-cnctopbaos-rotation-5th-axis-rotary-table-cnc-4th-axis-axis) --- *Product available on Desertcart Uruguay* *Store origin: UY* *Last updated: 2026-04-23*