---
product_id: 412046226
title: "RATTMMOTOR CNC Spindle Motor Kit 220V 2.2KW Square Spindle Motor Air Cooled ER20+2.2KW VFD Inverter 220V Variable Frequency Drive Single to 3 Phase Converter for CNC Milling Machine"
brand: "rattmmotor"
price: "14700746₫"
currency: VND
in_stock: true
reviews_count: 6
category: "Rattmmotor"
url: https://www.desertcart.vn/products/412046226-rattmmotor-cnc-spindle-motor-kit-220v-2-2kw-square-spindle
store_origin: VN
region: Vietnam
---

# 2.2KW high power output 0-24,000 RPM variable speed Air-cooled for stable temp RATTMMOTOR CNC Spindle Motor Kit 220V 2.2KW Square Spindle Motor Air Cooled ER20+2.2KW VFD Inverter 220V Variable Frequency Drive Single to 3 Phase Converter for CNC Milling Machine

**Brand:** rattmmotor
**Price:** 14700746₫
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your CNC game with precision power that won’t quit!

## Quick Answers

- **What is this?** RATTMMOTOR CNC Spindle Motor Kit 220V 2.2KW Square Spindle Motor Air Cooled ER20+2.2KW VFD Inverter 220V Variable Frequency Drive Single to 3 Phase Converter for CNC Milling Machine by rattmmotor
- **How much does it cost?** 14700746₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/412046226-rattmmotor-cnc-spindle-motor-kit-220v-2-2kw-square-spindle)

## 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

- • **Cool Under Pressure:** Air-cooled design keeps motor temp stable around 95°F, maximizing uptime and durability.
- • **Power Meets Control:** 2.2KW spindle paired with advanced VFD inverter for seamless speed and torque management.
- • **Smart Safety Features:** Built-in over-current, over-voltage, and thermal protections keep your workflow uninterrupted and safe.
- • **Versatile Connectivity:** Single-phase to three-phase conversion with easy U, V, W port matching for plug-and-play setup.
- • **Precision at High Speed:** Ultra-tight runout <0.01mm ensures flawless CNC cuts every time.

## Overview

The RATTMMOTOR CNC Spindle Motor Kit combines a robust 2.2KW air-cooled spindle motor with a sophisticated 2.2KW VFD inverter, delivering up to 24,000 RPM with ultra-precise runout under 0.01mm. Designed for professional CNC routers, it features advanced fault protections, multi-frequency settings, and easy single-to-three phase conversion, ensuring reliable, high-speed machining with stable temperature control and smart safety mechanisms.

## Description

RATTMMOTOR CNC Spindle Motor Kit 220V 2.2KW Square Spindle Motor Air Cooled ER20+2.2KW VFD Inverter 220V Variable Frequency Drive Single to 3 Phase Converter for CNC Router Machine - desertcart.com

Review: Nice solid spindle for the money. - Nice economical solution for 150. wish it was a little smaller.
Review: Works perfect - I bought this kit to replace another motor and figured I would just do the motor and vfd at the same time I ended up not using the vfd but the spindle has performed perfect. I probably have 10 hours on it with no issues the temperature seems to stabilize around 95° f. With a laser thermometer. I would have no problem buying the exact same motor again

## Features

- 【Package Include】: ①1 x 2.2KW Square Air Cooled Spindle Motor ②1 x 2.2KW VFD with cable ③1 x ER20 Wrench
- 【2.2KW Spindle Motor】: ①This is a 220V-2.2KW air-cooled 6A spindle motor come with a ER20 nut and collet. Frequency is 400HZ, precision tapered bore is less than 0.005mm and runout off is Less than 0.01mm. ②Speed of The Spindle Motor : 0-24000RPM. Because it is a high-speed spindle motor, the spindle speed must not be lower than 9000 rpm during the use of the spindle. It should be noted that the main shaft cannot only rotate clockwise or counter-clockwise.
- 【2.2KW VFD】①Parameters: Input Voltage: 220V(+/-15%), Output Voltage: 220VAC, Input Frequency: 50-60 Hz, Output Frequency: 0-1000 Hz, Input Phase: 1 phase, Output Phase: 3 phase, Current: 11A. It provide a variety of fault protection functions: over-current, over-voltage, under-voltage, over-heat, overload, lack of equal real-time monitoring and protection to ensure safe operation.
- ②Other Fuctions: With over torque and under torque detection; With jump frequency control function, it can effectively suppress mechanical resonance and make the system more stable and reliable.It can also avoid the impact of production due to instantaneous power failure because of instantaneous power-down retention function. What's more, it supports multiple frequency settings: digital setting, analog setting, PID setting, RS485 communication setting,ect.
- 【How to Connect Spindle Motor and VFD】The spindle motor's aviation plug marked with number U, V, W. Number U, V, W port are connected with inverter's port U, V, W respectively.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09NVW8ZN6 |
| Best Sellers Rank | #284,378 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #17 in Power Milling Machine Replacement Parts #2,560 in Power Tool Replacement Parts |
| Brand Name | RATTMMOTOR |
| Customer Reviews | 4.8 4.8 out of 5 stars (17) |
| Horsepower | 2.2 Kilowatts |
| Item Dimensions W x H | 4.3"W x 4.3"H |
| Item Weight | 4.9 Kilograms |
| Manufacturer | RTM |
| Material Type | Stainless Steel |
| Model | CFFK-2.2RTM |
| Model Name | CFFK-2.2RTM |
| Shaft Diameter | 1.22 Inches |
| Speed | 24000 RPM |
| Voltage | 220 Volts |
| Warranty Description | 1 year warranty |

## Product Details

- **Brand:** RATTMMOTOR
- **Horsepower:** 2.2 Kilowatts
- **Model Name:** CFFK-2.2RTM
- **Speed:** 24000 RPM
- **Voltage:** 220 Volts

## Images

![RATTMMOTOR CNC Spindle Motor Kit 220V 2.2KW Square Spindle Motor Air Cooled ER20+2.2KW VFD Inverter 220V Variable Frequency Drive Single to 3 Phase Converter for CNC Milling Machine - Image 1](https://m.media-amazon.com/images/I/71YrOKSVAgL.jpg)

## Available Options

This product comes in different **Color** options.

## 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

### ⭐⭐⭐⭐⭐ Nice solid spindle for the money.
*by B***D on January 10, 2026*

Nice economical solution for 150. wish it was a little smaller.

### ⭐⭐⭐⭐⭐ Works perfect
*by S***D on October 25, 2025*

I bought this kit to replace another motor and figured I would just do the motor and vfd at the same time I ended up not using the vfd but the spindle has performed perfect. I probably have 10 hours on it with no issues the temperature seems to stabilize around 95° f. With a laser thermometer. I would have no problem buying the exact same motor again

### ⭐⭐⭐⭐ There is a difference between the 2
*by K***6 on April 1, 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.

## Frequently Bought Together

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-04-23*