---
product_id: 231035979
title: "MGN12 Linear Rail Guide 300mm Linear Sliding Guideway with MGN12H Sliding Block for 3D Printer and CNC Machine (H-Type)"
brand: "simax3d"
price: "฿2630"
currency: THB
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.th/products/231035979-mgn12-linear-rail-guide-300mm-linear-sliding-guideway-with-mgn12h
store_origin: TH
region: Thailand
---

# 300mm precision M3 T nut compatibility H-Type sliding block MGN12 Linear Rail Guide 300mm Linear Sliding Guideway with MGN12H Sliding Block for 3D Printer and CNC Machine (H-Type)

**Brand:** simax3d
**Price:** ฿2630
**Availability:** ✅ In Stock

## Summary

> 🚀 Slide into Precision!

## Quick Answers

- **What is this?** MGN12 Linear Rail Guide 300mm Linear Sliding Guideway with MGN12H Sliding Block for 3D Printer and CNC Machine (H-Type) by simax3d
- **How much does it cost?** ฿2630 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/231035979-mgn12-linear-rail-guide-300mm-linear-sliding-guideway-with-mgn12h)

## Best For

- simax3d enthusiasts

## Why This Product

- Trusted simax3d brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust Design:** Equipped with rubber stoppers to ensure your sliding block stays securely in place, preventing any mishaps.
- • **Easy Installation:** Compatible with M3 T nuts and screws, making setup a breeze for your 3D printer or CNC machine.
- • **Quality Assurance:** Crafted for durability, this linear guideway is built to withstand the demands of your creative endeavors.
- • **Precision Engineering:** Experience unparalleled accuracy with a 300mm MGN12 linear rail, designed for optimal performance.
- • **Versatile Application:** Perfectly suited for both hobbyists and professionals, enhancing your projects with smooth linear motion.

## Overview

The MGN12 Linear Rail Guide is a 300mm sliding guideway designed for 3D printers and CNC machines, featuring an MGN12H sliding block. It includes rubber stoppers for safety and is compatible with M3 T nuts and screws for easy installation. Ideal for both professional and hobbyist applications, this product ensures smooth and accurate linear motion.

## Description

MGN12 Linear Rail Guide 300mm Linear Sliding Guideway with MGN12H Sliding Block for 3D Printer and CNC Machine (H-Type)

## Features

- Packing List: 300mm MGN12 Linear Rail*1, MGN12H Sliding Block*1
- Notification: There's size note in picture, make sure you get the correct size.
- Recommendation: Please use M3 T nut and screw to fix the linear rail for 20 series EU Al-profile.
- Good Details: There are two rubber stoppers on each side of the linear rail to prevent the sliding block from falling out.
- MGN12H Linear Slide 300MM Note: Please use M3 T nut and screw to fix the linear rail for 20 series EU Al-profile.

## Product Details

- **Brand:** SIMAX3D
- **Material:** Stainless Steel
- **Bearing Number:** MGN12001
- **Bearing Type:** Linear Bearing
- **Compatible Lubricant:** Grease

## Images

![MGN12 Linear Rail Guide 300mm Linear Sliding Guideway with MGN12H Sliding Block for 3D Printer and CNC Machine (H-Type) - Image 1](https://m.media-amazon.com/images/I/41D4XlgXgyL.jpg)

## Available Options

This product comes in different **Color, Size, Number of Items** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great
*by B***. on April 22, 2025*

They came securely packaged and work great.

### ⭐⭐⭐⭐⭐ Good quality
*by V***R on June 25, 2023*

I'm a CNC machinist and know good and bad quality rails and these are probably 8 out of 10 quality. Put them on my ender 3v2 for Y Axis and printed rail attachments to fit them to it.

### ⭐⭐⭐⭐ Good for the price
*by J***E on February 20, 2021*

Not bad. Needed some light lubricant and to be worked for awhile to loosen up but definitely worth the price.

## Frequently Bought Together

- MGN12 Linear Rail Guide 300mm Linear Sliding Guideway with MGN12H Sliding Block for 3D Printer and CNC Machine (H-Type)
- Key-Bak Super48 HD 8oz. Locking Retractable Key Holder, 48" Retractable Cord, Black Polycarbonate Case, Steel Belt Clip, Oversized Split Ring

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**Shop now:** [https://www.desertcart.co.th/products/231035979-mgn12-linear-rail-guide-300mm-linear-sliding-guideway-with-mgn12h](https://www.desertcart.co.th/products/231035979-mgn12-linear-rail-guide-300mm-linear-sliding-guideway-with-mgn12h)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-22*