---
product_id: 629752561
title: "RATTMMOTOR 4-Bearings Waterproof 246mm Length 2.2KW Spindle Motor 220V ER20 | Water Cooled Spindle Motor CNC Router Carved Metal Spindle 24000RPM 80mm 8A 400Hz for CNC Milling Engraver Machine"
brand: "rattmmotor"
price: "$2098.80"
currency: USD
in_stock: true
reviews_count: 3
url: https://www.desertcart.us/products/629752561-rattmmotor-4-bearings-waterproof-246mm-length-2-2kw-spindle-motor
store_origin: US
region: United States of America
---

# Water-cooled for optimal thermal management 4 precision P4-class bearings for ultra-smooth rotation 2.2KW high torque power RATTMMOTOR 4-Bearings Waterproof 246mm Length 2.2KW Spindle Motor 220V ER20 | Water Cooled Spindle Motor CNC Router Carved Metal Spindle 24000RPM 80mm 8A 400Hz for CNC Milling Engraver Machine

**Brand:** rattmmotor
**Price:** $2098.80
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your CNC game with precision power and unstoppable coolness!

## Quick Answers

- **What is this?** RATTMMOTOR 4-Bearings Waterproof 246mm Length 2.2KW Spindle Motor 220V ER20 | Water Cooled Spindle Motor CNC Router Carved Metal Spindle 24000RPM 80mm 8A 400Hz for CNC Milling Engraver Machine by rattmmotor
- **How much does it cost?** $2098.80 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/629752561-rattmmotor-4-bearings-waterproof-246mm-length-2-2kw-spindle-motor)

## 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

- • **Engineered for Accuracy:** P4-class tapered bore bearings with less than 0.02mm runout guarantee razor-sharp cuts every time.
- • **Power Through Precision:** 2.2KW motor delivering up to 24,000 RPM for high-efficiency milling and engraving.
- • **Professional-Grade Build:** Robust stainless steel construction and aviation-grade interface for seamless CNC integration and durability.
- • **Stay Cool Under Pressure:** Advanced water-cooling system ensures consistent performance without overheating during long runs.
- • **Versatile Material Compatibility:** Perfectly suited for wood, glass, PVC, and non-metallic engraving projects to expand your creative horizons.

## Overview

The RATTMMOTOR 2.2KW ER20 spindle motor combines high torque and precision engineering with a water-cooled design, delivering speeds up to 24,000 RPM. Featuring four P4-class bearings and a precision tapered bore, it ensures minimal runout for flawless milling and engraving on wood, glass, PVC, and other non-metallic materials. Built with durable stainless steel and professional aviation interfaces, this spindle motor is engineered for demanding CNC applications requiring reliability and accuracy.

## Description

Package Include: 1 x 2.2KW ER20 Water-Cooled Spindle Motor (long length and high torque)Specification:Material:Stainless SteelSize: Φ 80x246mm ( longer length and high torque)Power: 2.2KWVoltage: 220VACCurrent: 8AFrequency: 0-400HZSpeed: 10-24000rpmCooling: Water-coolingPrecision Tapered Bore: 0.01mmRunout off: Less than 0.02mmBearing Lubrication: GreaseCollet Size: ER20Bearings: 4 bearings(C7005x2 + C7003x2),P4 classNet Weight: 6.1KGPower Supply Interface: Professional aviation interface, interface 1234 marked 123 respectively connected to the inverter output end of the (U, V, W),4 is blank,do not connectionMain application: Wood, Glass, PVC industry

Review: Satisfied with this purchase - First time I have used a Rattmotor spindle, I am very satisfied with this purchase.
Review: Se quemó en menos de una semana. Tal vez el error fue mío por dejarlo solo trabajando. - Se quemó muy rapido

## Features

- This spindle motor is Waterproof ,can be use metal ( steel, Aliminum,etc).
- Notice:The spindle speed can't lower than 9000rpm!!!!
- 4pcs Bearings High Quality Bearings, 4 bearings (C7005x2 + C7003x2),P4 class.
- Precision tapered bore 0.01mm; Runout off: Less than 0.02mm.
- Main Application: Wood, Glass, PVC industry.The spindle motor Mainly suitable for non-metallic engraving

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B071HYXK9X |
| Brand | RATTMMOTOR |
| Brand Name | RATTMMOTOR |
| Customer Reviews | 3.5 out of 5 stars 9 Reviews |
| Horsepower | 2.2 Kilowatts |
| Item Weight | 6.1 Kilograms |
| Manufacturer | Chang Sheng |
| Material | Iron |
| Material Type | Iron |
| Model Name | RTM-2.2-220V |
| Model Number | RTM-2.2-220V |
| Part Number | RTM-80-2.2 |
| Speed | 10 RPM |
| UPC | 785004503039 |
| Voltage | 220 Volts |
| Wattage | 2.2 KW |

## Product Details

- **Brand:** RATTMMOTOR
- **Horsepower:** 2.2 Kilowatts
- **Item Weight:** 6.1 Kilograms
- **Speed:** 24000 RPM
- **Voltage:** 220 Volts

## Images

![RATTMMOTOR 4-Bearings Waterproof 246mm Length 2.2KW Spindle Motor 220V ER20 | Water Cooled Spindle Motor CNC Router Carved Metal Spindle 24000RPM 80mm 8A 400Hz for CNC Milling Engraver Machine - Image 1](https://m.media-amazon.com/images/I/51MVoEeusXL.jpg)
![RATTMMOTOR 4-Bearings Waterproof 246mm Length 2.2KW Spindle Motor 220V ER20 | Water Cooled Spindle Motor CNC Router Carved Metal Spindle 24000RPM 80mm 8A 400Hz for CNC Milling Engraver Machine - Image 2](https://m.media-amazon.com/images/I/818udvbqTQL.jpg)
![RATTMMOTOR 4-Bearings Waterproof 246mm Length 2.2KW Spindle Motor 220V ER20 | Water Cooled Spindle Motor CNC Router Carved Metal Spindle 24000RPM 80mm 8A 400Hz for CNC Milling Engraver Machine - Image 3](https://m.media-amazon.com/images/I/81Rm3QNTOeL.jpg)
![RATTMMOTOR 4-Bearings Waterproof 246mm Length 2.2KW Spindle Motor 220V ER20 | Water Cooled Spindle Motor CNC Router Carved Metal Spindle 24000RPM 80mm 8A 400Hz for CNC Milling Engraver Machine - Image 4](https://m.media-amazon.com/images/I/71kGe4dQQKL.jpg)
![RATTMMOTOR 4-Bearings Waterproof 246mm Length 2.2KW Spindle Motor 220V ER20 | Water Cooled Spindle Motor CNC Router Carved Metal Spindle 24000RPM 80mm 8A 400Hz for CNC Milling Engraver Machine - Image 5](https://m.media-amazon.com/images/I/81cGnPAw6qL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Satisfied with this purchase
*by A***R on 7 July 2026*

First time I have used a Rattmotor spindle, I am very satisfied with this purchase.

### ⭐ Se quemó en menos de una semana. Tal vez el error fue mío por dejarlo solo trabajando.
*by R***S on 6 May 2022*

Se quemó muy rapido

### ⭐ Wasn’t functional
*by T***Y on 6 April 2022*

The motor we received didn’t work. We returned it and decided to try a different brand of motor.

## Frequently Bought Together

- RATTMMOTOR 4-Bearings Waterproof 246mm Length Spindle Motor CNC 2.2KW Water Cooled Spindle Motor 220V ER20 CNC Router Carved Metal Spindle Motor 24000RPM 80mm 8A 400Hz for CNC Milling Engraver Machine
- RATTMMOTOR 80mm CNC Spindle Motor Clamp Mount Bracket Support Cast Aluminium with 3pcs Screws for φ80mm 1.5KW 2.2KW CNC Router Engraver Milling Water Cooled Air Cooled Spindle Motor
- SILIVN 14pcs ER20 Spring Collet Set for CNC Engraving Machine and Milling Lathe Tool Workholding Engraving Collets (1/16",3/32",1/8",5/32",3/16",7/32",1/4",9/32",5/16",11/32",3/8",13/32",7/16",1/2")

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-01*