---
product_id: 165407226
title: "RATTMMOTOR 500W CNC Air Cooled Spindle Motor ER11 12000RPM"
brand: "rattmmotor"
price: "€ 211.01"
currency: EUR
in_stock: true
category: "Rattmmotor"
url: https://www.desertcart.hr/products/165407226-rattmmotor-500w-cnc-air-cooled-spindle-motor-er11-12000rpm
store_origin: HR
region: Croatia
---

# 500W high power output 12,000 RPM max speed Air-cooled for long runtime RATTMMOTOR 500W CNC Air Cooled Spindle Motor ER11 12000RPM

**Brand:** rattmmotor
**Price:** € 211.01
**Availability:** ✅ In Stock

## Summary

> ⚙️ Power your CNC projects with precision and cool confidence!

## Quick Answers

- **What is this?** RATTMMOTOR 500W CNC Air Cooled Spindle Motor ER11 12000RPM by rattmmotor
- **How much does it cost?** € 211.01 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/165407226-rattmmotor-500w-cnc-air-cooled-spindle-motor-er11-12000rpm)

## 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

- • **Smart Safety:** Built-in overcurrent protection and soft start for reliable, worry-free use
- • **Speed on Demand:** Adjustable 2000-12000 RPM with pulse width tech for ultra-stable rotation
- • **Global Voltage Ready:** Supports AC100-220V ±10%, perfect for any workspace worldwide
- • **Precision Powerhouse:** 500W motor delivers consistent torque for demanding CNC tasks
- • **Cool & Quiet Operation:** Integrated air cooling fan ensures silent, long-lasting performance

## Overview

The RATTMMOTOR 500W CNC Air Cooled Spindle Motor ER11 offers a robust 500W power output with speeds adjustable from 2000 to 12000 RPM. Designed for global voltage compatibility (AC100-220V), it features advanced pulse width technology for stable speed control, an air cooling fan for quiet and extended operation, and built-in safety mechanisms including overcurrent protection and soft start. Compact yet powerful, it’s ideal for professional CNC routing and milling applications.

## Description

Buy RATTMMOTOR 500W CNC Air Cooled Spindle Motor ER11 12000RPM | with Input Voltage AC110V-220V Speed Controller with Power Supply + 52mm Clamp for CNC Router Milling Machine: Motor Speed Controllers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- Air Cooled Spindle-- Power: 500W; Idling Speed: 2000-12000r/min; Torque：0.5NM; Diameter: 52mm.
- Speed Controller-- Armature output voltage: DC0 ~ 100V adjustable; Input Voltage: AC100-AC220V±10% Global voltage 50/60Hz(User can change the power supply to 110V according to their needs); Current Limit: 6A; Wiring: Terminal type (Convenient and fast).
- Adopt pulse width technology to make the speed more stable, and the speed is high under low speed.
- With overcurrent protection cut-off device to make performance more reliable; With a soft start device to eliminate motor starting current is too large.
- Note: This motor has quiet operation, small volume and high speed, and the rear end of the motor is reinforced with a cooling fan, which can be safely worked for a long time!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07ZHFV4N5 |
| Best Sellers Rank | #181,617 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #149 in Motor Speed Controllers |
| Brand Name | RATTMMOTOR |
| Customer Reviews | 4.5 4.5 out of 5 stars (47) |
| Horsepower | 500 watts |
| Item Weight | 1.67 kg |
| Manufacturer | RTM |
| Material Type | Stainless Steel |
| Shaft Diameter | 16 millimeters |
| Speed | 12000 rpm |
| UPC | 769135311916 |
| Voltage | 220 volts |

## Product Details

- **Brand:** RATTMMOTOR
- **Horsepower:** 500 watts
- **Material:** Stainless Steel
- **Speed:** 12000 rpm
- **Voltage:** 220 volts

## Images

![RATTMMOTOR 500W CNC Air Cooled Spindle Motor ER11 12000RPM - Image 1](https://m.media-amazon.com/images/I/819U4RPkugL.jpg)

## Questions & Answers

**Q: what size is the screws? also if it is metric or imperial.**
A: The bracket screws are M5 x 0.8

**Q: On the label "power". Which screw is plus and which screw is minus? They are labeled 5 and 6.**
A: Those are for main AC voltage in (110V/220V from the wall) there is no + nor -

**Q: brackets--how many? I need 2**
A: There is one bracket (as shown).  
Not sure why you need two brackets, the one that is included is sturdy enough (it is solid aluminum) to stabilize the motor.

**Q: Did motor is water-resistant or waterproof?**
A: this one isn't waterproof

## Frequently Bought Together

- RATTMMOTOR 500W CNC Air Cooled Spindle Motor ER11 12000RPM + Input Voltage AC110V-220V Speed Controller with Power Supply + 52mm Clamp for CNC Router Milling Machine
- Doesbot CNC 3018 Update Kit, Including Sliding Table with Motor, 52mm Spindle Fixture, X Axis Scs10uu Slider, T8 lead 4mm screw nut and fixing seat, With 2 limit switches

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**Shop now:** [https://www.desertcart.hr/products/165407226-rattmmotor-500w-cnc-air-cooled-spindle-motor-er11-12000rpm](https://www.desertcart.hr/products/165407226-rattmmotor-500w-cnc-air-cooled-spindle-motor-er11-12000rpm)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-09-17*