--- product_id: 404317440 title: "RATTMMOTOR CNC Spindle Motor Kit 220V, 2.2KW Air Cooled Spindle Motor Square Spindle Motor ER20+2.2KW VFD Inverter 220V Variable Frequency Drive Single to 3 Phase Converter for CNC Router Machine" brand: "rattmmotor" price: "$140.78" currency: USD in_stock: false reviews_count: 3 url: https://www.desertcart.us/products/404317440-rattmmotor-cnc-spindle-motor-kit-220v-2-2kw-air-cooled store_origin: US region: United States of America --- # 2.2KW Power 0-24000 RPM Speed Safety Features RATTMMOTOR CNC Spindle Motor Kit 220V, 2.2KW Air Cooled Spindle Motor Square Spindle Motor ER20+2.2KW VFD Inverter 220V Variable Frequency Drive Single to 3 Phase Converter for CNC Router Machine **Brand:** rattmmotor **Price:** $140.78 **Availability:** ❌ Out of Stock ## Summary > πŸš€ Elevate Your CNC Game with Precision Power! ## Quick Answers - **What is this?** RATTMMOTOR CNC Spindle Motor Kit 220V, 2.2KW Air Cooled Spindle Motor Square Spindle Motor ER20+2.2KW VFD Inverter 220V Variable Frequency Drive Single to 3 Phase Converter for CNC Router Machine by rattmmotor - **How much does it cost?** $140.78 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/404317440-rattmmotor-cnc-spindle-motor-kit-220v-2-2kw-air-cooled) ## Best For - rattmmotor enthusiasts ## Why This Product - Trusted rattmmotor brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Smart Monitoring:** Stay informed with real-time monitoring and multiple frequency settings for optimal performance. - β€’ **Unleash Precision:** Experience a precision tapered bore of less than 0.005mm for flawless machining. - β€’ **Robust VFD Control:** Enjoy advanced fault protection with the 2.2KW VFD, ensuring safe and reliable operation. - β€’ **High-Speed Performance:** Achieve speeds up to 24000 RPM, perfect for high-demand CNC applications. - β€’ **Versatile Connectivity:** Easily connect with a user-friendly aviation plug for seamless integration. ## Overview The RATTMMOTORCNC Spindle Motor Kit is a high-performance 220V, 2.2KW air-cooled spindle motor designed for CNC router machines. It features a robust VFD inverter for variable frequency control, ensuring safe operation with advanced fault protection. With a maximum speed of 24000 RPM and precision engineering, this kit is perfect for professionals seeking reliability and efficiency in their machining tasks. ## Description Review: There is a difference between the 2 - There are 2 prices in the listing with no explanation of the difference. I bought the cheaper one not knowing that it is a 2.2k spindle but with a 1.5K VFD. The more expensive one has a 2.2k vfd from what I can tell. It runs fine with the 1.5 so far but I would have liked to know that before buying it, it could have easily been clearly stated in the listing. I was able to download a file from their website with some more useful information on the wiring of the VFD. They had sent me an email after purchase which seemed to suggest not to ground the spindle but I think I just cant understand the translation of what they were trying to say. I studied the wiring diagram quite well before starting and my testing went flawlessly. I screwed the VFD and the spindle to a piece of plywood for testing in case of any motor torque related movement of the spindle. I also tightened a dowel pin into the collet so nothing would go flying. For example the collet nut as you never know if the spindle will start clockwise or counter clockwise the first time or what RPM it will start at. No flying nuts wanted. Its ok to take the nut off and set it aside too but I would be afraid to misplace it. While anyone can wire one of these to some degree and get it working, its worth noting that there are lethal voltages present and exposed after completion of the wiring on the VFD. The VFD should be installed after testing in a suitable enclosure, not on a wall or directly on a machine. Chips, dust, debris, or any object can find the contacts and cause all kinds of unwelcome events that are harmful to nearby people and property. People and objects can also come in contact with something inadvertently that can cause injury or death. Sorry for the safety rant but I have seen so many of these installed in weird places with bad wiring and so on. I saw one installed inside a machine enclosure with the machine! The dimensions for the spindle mounting holes are not all listed anywhere I found so my measurements are- the 7mm diameter holes are 35mm spaced and 95mm side to side. They measure pretty close to those numbers. Review: Works - Wired it up, works well. No programming required on supplied drive, plug and play. Seems to have plenty of power for my application. ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | RATTMMOTOR | | Horsepower | 2.2 Kilowatts | | Model name | CFFK-2.2RTM | | Product dimensions | 10.9W x 10.9H centimeters | | Speed | 24000 RPM | | Voltage | 220 Volts | ## Product Details - **Brand:** RATTMMOTOR - **Model name:** CFFK-2.2RTM - **Speed:** 24000 RPM - **Voltage:** 220 Volts - **Horsepower:** 2.2 Kilowatts ## Images ![RATTMMOTOR CNC Spindle Motor Kit 220V, 2.2KW Air Cooled Spindle Motor Square Spindle Motor ER20+2.2KW VFD Inverter 220V Variable Frequency Drive Single to 3 Phase Converter for CNC Router Machine - Image 1](https://m.media-amazon.com/images/I/71YrOKSVAgL.jpg) ![RATTMMOTOR CNC Spindle Motor Kit 220V, 2.2KW Air Cooled Spindle Motor Square Spindle Motor ER20+2.2KW VFD Inverter 220V Variable Frequency Drive Single to 3 Phase Converter for CNC Router Machine - Image 2](https://m.media-amazon.com/images/I/815shZZ+NcL.jpg) ![RATTMMOTOR CNC Spindle Motor Kit 220V, 2.2KW Air Cooled Spindle Motor Square Spindle Motor ER20+2.2KW VFD Inverter 220V Variable Frequency Drive Single to 3 Phase Converter for CNC Router Machine - Image 3](https://m.media-amazon.com/images/I/81PBDdwp89L.jpg) ![RATTMMOTOR CNC Spindle Motor Kit 220V, 2.2KW Air Cooled Spindle Motor Square Spindle Motor ER20+2.2KW VFD Inverter 220V Variable Frequency Drive Single to 3 Phase Converter for CNC Router Machine - Image 4](https://m.media-amazon.com/images/I/81r1msFfa9L.jpg) ![RATTMMOTOR CNC Spindle Motor Kit 220V, 2.2KW Air Cooled Spindle Motor Square Spindle Motor ER20+2.2KW VFD Inverter 220V Variable Frequency Drive Single to 3 Phase Converter for CNC Router Machine - Image 5](https://m.media-amazon.com/images/I/71H27faW-OL.jpg) ## Questions & Answers **Q: How much does this spindle weigh?** A: About 4 lbs **Q: Does yhis motor controller have the brake capability?** A: This VFD has the ability to set acceleration faster or slower but does not have a brake feature. **Q: Whats the weight of the spindle?** A: About 5 lbs. ## Customer Reviews ### ⭐⭐⭐⭐ There is a difference between the 2 *by K***6 on 1 April 2025* There are 2 prices in the listing with no explanation of the difference. I bought the cheaper one not knowing that it is a 2.2k spindle but with a 1.5K VFD. The more expensive one has a 2.2k vfd from what I can tell. It runs fine with the 1.5 so far but I would have liked to know that before buying it, it could have easily been clearly stated in the listing. I was able to download a file from their website with some more useful information on the wiring of the VFD. They had sent me an email after purchase which seemed to suggest not to ground the spindle but I think I just cant understand the translation of what they were trying to say. I studied the wiring diagram quite well before starting and my testing went flawlessly. I screwed the VFD and the spindle to a piece of plywood for testing in case of any motor torque related movement of the spindle. I also tightened a dowel pin into the collet so nothing would go flying. For example the collet nut as you never know if the spindle will start clockwise or counter clockwise the first time or what RPM it will start at. No flying nuts wanted. Its ok to take the nut off and set it aside too but I would be afraid to misplace it. While anyone can wire one of these to some degree and get it working, its worth noting that there are lethal voltages present and exposed after completion of the wiring on the VFD. The VFD should be installed after testing in a suitable enclosure, not on a wall or directly on a machine. Chips, dust, debris, or any object can find the contacts and cause all kinds of unwelcome events that are harmful to nearby people and property. People and objects can also come in contact with something inadvertently that can cause injury or death. Sorry for the safety rant but I have seen so many of these installed in weird places with bad wiring and so on. I saw one installed inside a machine enclosure with the machine! The dimensions for the spindle mounting holes are not all listed anywhere I found so my measurements are- the 7mm diameter holes are 35mm spaced and 95mm side to side. They measure pretty close to those numbers. ### ⭐⭐⭐⭐⭐ Works *by A***R on 8 November 2022* Wired it up, works well. No programming required on supplied drive, plug and play. Seems to have plenty of power for my application. ### ⭐⭐⭐⭐⭐ Muy bueno *by D***L on 26 April 2023* Se siente de buena calidad, buenos materiales, muy bien diseΓ±ado pero lo devolvΓ­ porque es muy pesado para mi maquina ## Frequently Bought Together - RATTMMOTOR CNC Spindle Motor Kit 220V 2.2KW Air Cooled Spindle Motor Square ER20+2.2KW VFD Inverter 220V Variable Frequency Drive Single to 3 Phase Converter for CNC Router Machine - HiLetgo 10pcs Micro Limit Switch KW12-3 AC 250V 5A SPDT 1NO 1NC Micro Switch Normally Open Close Limit Switch with Roller Lever Arm Black --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/404317440-rattmmotor-cnc-spindle-motor-kit-220v-2-2kw-air-cooled](https://www.desertcart.us/products/404317440-rattmmotor-cnc-spindle-motor-kit-220v-2-2kw-air-cooled) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-26*