---
product_id: 313831104
title: "500W CNC Air Cooled Spindle Motor ER11 12000RMP + Input Voltage AC110V-220V Speed Controller with Power Supply + 52mm Clamp for CNC Router Milling Machine"
brand: "rattmmotor"
price: "$302.15"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/313831104-500w-cnc-air-cooled-spindle-motor-er11-12000rmp-input-voltage
store_origin: US
region: United States of America
---

# 500W high power output 12,000 RPM max speed Air-cooled for nonstop performance 500W CNC Air Cooled Spindle Motor ER11 12000RMP + Input Voltage AC110V-220V Speed Controller with Power Supply + 52mm Clamp for CNC Router Milling Machine

**Brand:** rattmmotor
**Price:** $302.15
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your CNC game with power, precision, and cool confidence!

## Quick Answers

- **What is this?** 500W CNC Air Cooled Spindle Motor ER11 12000RMP + Input Voltage AC110V-220V Speed Controller with Power Supply + 52mm Clamp for CNC Router Milling Machine by rattmmotor
- **How much does it cost?** $302.15 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/313831104-500w-cnc-air-cooled-spindle-motor-er11-12000rmp-input-voltage)

## 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

- • **Compact & Durable:** 52mm stainless steel clamp fits tight spaces with industrial strength.
- • **Cool Under Pressure:** Advanced air cooling with rear fan ensures long, quiet operation.
- • **Global Voltage Ready:** Supports AC110V-220V for versatile, worldwide compatibility.
- • **Precision Powerhouse:** 500W motor delivers robust torque for flawless milling.
- • **Stable Speed Control:** Pulse width modulation tech guarantees smooth, consistent RPM.

## Overview

The RATTMMOTOR 500W CNC Air Cooled Spindle Motor combines a high-speed 12,000 RPM spindle with efficient air cooling and a robust 500W power output. Designed for professional CNC routers and milling machines, it features a 52mm stainless steel clamp, global voltage compatibility (AC110V-220V), and advanced pulse width speed control for stable, quiet, and long-lasting performance.

## Description

International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Features

- Air Cooled Spindle-- Power: 500W; Idling Speed: 2000-12000r/min; Torque0.5NM; Diameter: 52mm.
- Speed Controller: Input Voltage: AC100-AC220V±10% Global voltage 50/60Hz; 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.
- 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!
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07ZHFV4N5 |
| Batteries Required? | No |
| Batteries included? | No |
| Customer Reviews | 4.3 4.3 out of 5 stars (36) |
| Date First Available | 23 Oct. 2019 |
| Horsepower | 500 Watts |
| Item Package Quantity | 1 |
| Item Weight | 1.67 kg |
| Manufacturer | RTM |
| Material | Stainless Steel |
| Power Source | ac/dc |
| Product Dimensions | 5.6 x 19.9 x 0.01 cm; 1.67 kg |
| Speed | 12000 RPM |
| Voltage | 220 Volts |

## Product Details

- **Brand:** RATTMMOTOR
- **Horsepower:** 500 Watts
- **Material:** Stainless Steel
- **Speed:** 12000 RPM
- **Voltage:** 220 Volts

## Images

![500W CNC Air Cooled Spindle Motor ER11 12000RMP + Input Voltage AC110V-220V Speed Controller with Power Supply + 52mm Clamp for CNC Router Milling Machine - 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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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-23*