---
product_id: 434657428
title: "RATTMMOTOR 500W CNC Brushless DC Spindle Motor Kit 48V DC Air Cooled Spindle Motor ER11 12000RPM+500 Watt Brushless Driver Controller+600W DC Switching Power Supply+55mm Spindle Mount for CNC Router"
brand: "rattmmotor"
price: "€ 560.27"
currency: EUR
in_stock: true
reviews_count: 5
category: "Rattmmotor"
url: https://www.desertcart.hr/products/434657428-rattmmotor-500w-cnc-brushless-dc-spindle-motor-kit-48v-dc
store_origin: HR
region: Croatia
---

# 500W brushless power Up to 12,000 RPM speed Air-cooled for smooth operation RATTMMOTOR 500W CNC Brushless DC Spindle Motor Kit 48V DC Air Cooled Spindle Motor ER11 12000RPM+500 Watt Brushless Driver Controller+600W DC Switching Power Supply+55mm Spindle Mount for CNC Router

**Brand:** rattmmotor
**Price:** € 560.27
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your CNC game with precision power that professionals trust!

## Quick Answers

- **What is this?** RATTMMOTOR 500W CNC Brushless DC Spindle Motor Kit 48V DC Air Cooled Spindle Motor ER11 12000RPM+500 Watt Brushless Driver Controller+600W DC Switching Power Supply+55mm Spindle Mount for CNC Router by rattmmotor
- **How much does it cost?** € 560.27 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/434657428-rattmmotor-500w-cnc-brushless-dc-spindle-motor-kit-48v-dc)

## 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

- • **Built for Accuracy:** Ultra-low radial runout (0.01-0.03mm) guarantees razor-sharp cuts even with ultra-fine tooling.
- • **Speed Meets Control:** Variable speed up to 12,000 RPM with potentiometer and external voltage regulation for ultimate precision.
- • **Cool & Quiet Operation:** Advanced air-cooling system ensures stable performance and longer motor life under heavy workloads.
- • **Plug & Play Versatility:** Complete kit includes driver controller and 600W switching power supply for seamless CNC integration.
- • **Precision Cutting Powerhouse:** 500W brushless motor delivers high torque with minimal noise and zero spark interference.

## Overview

The RATTMMOTOR 500W CNC Brushless DC Spindle Motor Kit features a robust 48V air-cooled spindle motor capable of speeds up to 12,000 RPM and torque of 0.6NM. Its brushless design eliminates sparks and reduces noise, ensuring smooth, reliable operation. The kit includes a versatile brushless driver controller with multiple speed regulation options and a 600W DC switching power supply, making it a comprehensive solution for high-precision CNC routing with exceptional radial runout accuracy of 0.01-0.03mm.

## Description

500W Brushless DC Air-Cooled Spindle Motor ER11 KitPackage Include:1 × 500W 48V Brushless DC Air-Cooled Spindle Motor ER111 × BLDC Brushless Driver Compatible with Hall and no Hall 1 × 55mm Spindle Motor Mount1 × 600W 48V DC Switching Power Supply

Review: I have been searching for so long for a spindle this accurate, measured runoff of 0.01mm so cutting with a 0.1mm tip gives you a 0.1mm cut, a 0.05mm tip becomes a 0.07mm cut which is still incredible. But it's stained and the finishing job is so strange I though it was used at first but it seems to be the manufacture focused more on getting it right than getting it pretty, if that's the trade-off for this level of accuracy then so be it. The power supply arrived dead-on-delivery, I have many others laying around the lab so I made it work, that the only real problem I encountered. Still gave it a 5-Star because this accuracy is almost impossible to find at this price
Review: I received the new spindle assembly on 11-14-24. It looked basically ok, but the end cap on the motor looked slightly crooked to me, so I verified that it was angled by several degrees and then removed the end cap to inspect it. I found that the barrel outer casing of the motor had an edge that had been peened around the entire diameter. Possibly from beind dropped during manufacture. The end cap is intended to slip over this lip, so that a machined surface inside of the end cap would rest on the barrel of the motor. This it could not do. Instead, the end cap rested on this peened surface, and just ended up where it ended up. This end cap centers the motor shaft bearing, so the cocked end cap also cocked the bearing. I hand filed the protruding edge on the barrel so that the end cap could slip over it and seat properly. This allowed the bearing to seat properly. Once reassembled, I verified that the end cap mounting was true and found tbat the motor shaft now turned much more easily. I noted that the inside of the end cap had multiple raised casting burs that were sharp and were in close proximity to the tops of the motor coil windings. These burs were turned down on a lathe for safety. After reassembly, I connected the ESC and power supply, and they worked perfectly. Although not prewired, I tested the reverse function on the ESC, and it also worked perfectly. I am rating this product 4 out of 5 because the design is good and it met my needs, *but* the manufacturing flaws were hard to ignore. If you do not have the skills to deal with this sort of thing, then I recommend that you purchase a more expensive unit elsewhere that has been vetted.

## Features

- Air Cooled Spindle Power: 500W; Voltage: 48VDC; Speed: 12000r/min; Torque：0.6NM; Diameter: 55mm.Radial runout off :about 0.01-0.03mm;Insulation resistance: > 2 megohms; Dielectric strength of insulation: 400V.
- Spindle Motor Drvier Features Compatible with square wave with and without Hall, with potentiometer speed regulation function, external 10V voltage speed regulation function, switch function, speed output function, alarm output function, forward and reverse function, etc., and has a protective shell.
- Spindle Motor Drvier Parameters Rated voltage: 20-50VDC; Rated current: 10A; Limiting current: 15A; Support speed: support speed above 20000RPM, the specific speed depends on the motor itself and the load.
- DC Switching Power Supply Parameters Input voltage: 110V / 220V AC; Current: 0-12.5A; Input frequency: 50/60Hz; Power: 600W; output Voltage: DC 48V; Size; 215*115*50mm.
- Advantages-1 The brush is removed, and there is no electric spark generated when the brushed motor is running, which greatly reduces the interference of the electric spark to the remote control radio equipment..Advantages-2 Without the brush, the friction force is reduced during operation, the operation is smooth, and the noise is low, which ensures the stability of the equipment operation.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09X2Y63XQ |
| Best Sellers Rank | #175,034 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #225 in Electrical Motor Controls |
| Item model number | 500WBLDC-4 |
| Manufacturer | RTM |
| Product Dimensions | 190 x 57 x 58 cm; 2.7 kg |

## Product Details

- **Brand:** RATTMMOTOR
- **Horsepower:** 500 Watts
- **Material:** Stainless Steel
- **Speed:** 20000 RPM
- **Voltage:** 48 Volts

## Images

![RATTMMOTOR 500W CNC Brushless DC Spindle Motor Kit 48V DC Air Cooled Spindle Motor ER11 12000RPM+500 Watt Brushless Driver Controller+600W DC Switching Power Supply+55mm Spindle Mount for CNC Router - Image 1](https://m.media-amazon.com/images/I/71oaVJOLJmL.jpg)

## Questions & Answers

**Q: Which color wires correspond to UVW?**
A: i connected mine U=red, V=Blue, W= black

**Q: Can confirm diameter at 55mm?  If so, is there a 52mm version (BRUSHLESS)?**
A: mine is 55 mm diameter. don't know about other diameter motors

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***Y on 2 December 2024*

I have been searching for so long for a spindle this accurate, measured runoff of 0.01mm so cutting with a 0.1mm tip gives you a 0.1mm cut, a 0.05mm tip becomes a 0.07mm cut which is still incredible. But it's stained and the finishing job is so strange I though it was used at first but it seems to be the manufacture focused more on getting it right than getting it pretty, if that's the trade-off for this level of accuracy then so be it. The power supply arrived dead-on-delivery, I have many others laying around the lab so I made it work, that the only real problem I encountered. Still gave it a 5-Star because this accuracy is almost impossible to find at this price

### ⭐⭐⭐⭐ Review
*by D***A on 24 November 2024*

I received the new spindle assembly on 11-14-24. It looked basically ok, but the end cap on the motor looked slightly crooked to me, so I verified that it was angled by several degrees and then removed the end cap to inspect it. I found that the barrel outer casing of the motor had an edge that had been peened around the entire diameter. Possibly from beind dropped during manufacture. The end cap is intended to slip over this lip, so that a machined surface inside of the end cap would rest on the barrel of the motor. This it could not do. Instead, the end cap rested on this peened surface, and just ended up where it ended up. This end cap centers the motor shaft bearing, so the cocked end cap also cocked the bearing. I hand filed the protruding edge on the barrel so that the end cap could slip over it and seat properly. This allowed the bearing to seat properly. Once reassembled, I verified that the end cap mounting was true and found tbat the motor shaft now turned much more easily. I noted that the inside of the end cap had multiple raised casting burs that were sharp and were in close proximity to the tops of the motor coil windings. These burs were turned down on a lathe for safety. After reassembly, I connected the ESC and power supply, and they worked perfectly. Although not prewired, I tested the reverse function on the ESC, and it also worked perfectly. I am rating this product 4 out of 5 because the design is good and it met my needs, *but* the manufacturing flaws were hard to ignore. If you do not have the skills to deal with this sort of thing, then I recommend that you purchase a more expensive unit elsewhere that has been vetted.

### ⭐⭐⭐⭐⭐ Review
*by R***R on 14 January 2025*

Added this to my 1318 mill, works great and easily is integrated either MakerBase board via a $7 PWM to 0-10v board. Very low runout. And has the power to drive 1/4" bits through wood or 1/8" through light metals easily.

## Frequently Bought Together

- RATTMMOTOR DC Brushless Spindle Motor Kit, 500W 48V Spindle Motor Air Cooled ER11, 12000RPM, 0.6N.m, 55MM+BLDC Driver Motor Speed Controller 600W Spindle Power Supply+Clamp Mount for CNC Router
- Genmitsu 15PCS ER11 Precision Spring Collet Set for CNC Engraving Milling Lathe Chuck Tool, 1.0mm-7.0mm & 1/4", 1/8"

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-17*