---
product_id: 777889060
title: "Iverntech 100mm MGN12 Linear Rail Guide with MGN12H Stainless Steel Black Carriage Block for Ender 3, Corexy, Tronxy, Delta Kossel 3D Printers Upgrades and CNC Machine"
price: "€ 33.27"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.sk/products/777889060-iverntech-100mm-mgn12-linear-rail-guide-with-mgn12h-stainless-steel
store_origin: SK
region: Slovakia
---

# 100mm precision length MGN12H stainless steel carriage Rust-resistant sealed packaging Iverntech 100mm MGN12 Linear Rail Guide with MGN12H Stainless Steel Black Carriage Block for Ender 3, Corexy, Tronxy, Delta Kossel 3D Printers Upgrades and CNC Machine

**Price:** € 33.27
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your 3D printing precision with rails that glide like silk!

## Quick Answers

- **What is this?** Iverntech 100mm MGN12 Linear Rail Guide with MGN12H Stainless Steel Black Carriage Block for Ender 3, Corexy, Tronxy, Delta Kossel 3D Printers Upgrades and CNC Machine
- **How much does it cost?** € 33.27 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/777889060-iverntech-100mm-mgn12-linear-rail-guide-with-mgn12h-stainless-steel)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** MGN12H stainless steel black carriage block delivers exceptional durability and noise-free performance under heavy use.
- • **Rust? Not Here!:** Airtight, protective packaging with light anti-rust oil guarantees corrosion-free rails straight out of the box.
- • **Precision Perfected:** 100mm bearing steel rail ensures ultra-smooth, accurate linear motion for flawless 3D prints and CNC operations.
- • **Effortless Maintenance:** Easy to clean and re-lubricate, these rails keep your machine running quietly and efficiently with minimal upkeep.
- • **Upgrade Your Print Game:** Say goodbye to worn-out wheels and noisy mechanics—experience buttery-smooth motion and superior print quality instantly.

## Overview

The Iverntech 100mm MGN12 Linear Rail Guide with MGN12H stainless steel carriage block is a premium upgrade for 3D printers and CNC machines. Crafted from bearing steel and sealed in rust-proof packaging, it offers smooth, quiet, and precise linear motion. Trusted by professionals for its durability, easy maintenance, and significant print quality improvements, this rail guide transforms your machine’s performance with minimal effort.

## Description

Iverntech 100mm MGN12 Linear Rail Guide with MGN12H Stainless Steel Black Carriage Block for Ender 3, Corexy, Tronxy, Delta Kossel 3D Printers Upgrades and CNC Machine

Review: Very High Quality Linear Rails - I took a chance on a recommendation from a friend on these Iverntech MGN12-H linear rails, and I was very happy with what I saw and received. The linear Rails and Blocks come in a box, wrapped in a bubble wrap tube, and the Liner Rails are sealed in an air tight Bag. Very well packaged, and there was no damage during shipping. (See Photos) What I liked: 1. The packaging. Protective, and air tight to prevent contamination and rust. No rust on any of the 4 I purchased. (Most likely because they know how to package them to prevent rust) 2. The light coating of protective oils to keep the rail and block rust free was just the right amount, it was not all sticky. 3. The precision, and quality of the machining on the rails is excellent. High Quality in my opinion. 4. The precision and high quality of the MGN-H Rail Blocks was outstanding. High Quality in my opinion. 5. Easy to clean the protective oils with just IPA. Soaked them over night in an air tight container, and the were free of protective oils. 6. All 4 linear rails I purchased had all the ball bearings in each block. No missing balls. The balls were of high quality in my opinion. 7. Disassembly of each bearing block was easy, and no issues were found with in the block itself. 8. Tapped threaded holes were clean and chip free. Good quality control there. 9. Very quit operation on the machine. No grinding noises, or flat spots on the balls that would have made them noisy. 10. The high quality of my prints because of the high quality of these Linear Rails. Just outstanding! 11. No having to constantly adjust wheels on my 3D Printer, or change them out due to them being worn out. What I didn't like: NOTHING, I have no complaints what so ever. These are high quality, low price Linear rails. Conclusion: If you want to convert your 3D Printer to linear rails, Then I highly recommend this brand. Inverntech. For $21.00 each, you actually get a high quality product. I have purchased other brands, and they just do not match up to Inverntech's.
Review: Small details add up to big performance! - These rails really perform pretty amazingly right out of the box. Unlike a lot of the cheaper Hiwin replicas out there, these came nicely oiled and sliding smoothly instead of covered in shipping wax and dragging. That being said, I still did my standard practice of disassembling the rails, cleaning with isopropyl alcohol and re-lubricating with Slick50 Supercharged One Lube and MAN are these things smooth now! While I had them apart, I noticed a few small details that I think are major contributors to these rails performing better than most. First, the quality of the molded plastic parts is much better than expected. There is no flash on any of the edges and they all fit together nicely. Second, and maybe more importantly, the start and end of the tracks that the balls actually roll in have been carefully relieved and tapered so that when the balls enter and exit the tracks there is no hard edge to roll ever and cause any clicking or dragging. These rails are FAR better quality than the offerings of RobotDigg and blow v-slot wheels rolling in 2020 aluminum extrusions out of the water. In my case, an Ultibots D300VS+ delta printer, the swap from v-slot wheels to these linear bearings cause the result of a vase mode test print to go from the ripply appearance of the blue part pictured to the buttery smooth appearance of the black part using the same g-code! Long story short, these are pretty great rails in my experience. Give them a shot!

## Features

- Rail Guide Length: 100mm (3.93"). Rail Guide Material: bearing steel

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Customer Reviews | 4.2 out of 5 stars 614 Reviews |

## Images

![Iverntech 100mm MGN12 Linear Rail Guide with MGN12H Stainless Steel Black Carriage Block for Ender 3, Corexy, Tronxy, Delta Kossel 3D Printers Upgrades and CNC Machine - Image 1](https://m.media-amazon.com/images/I/41SRNxiHsFL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very High Quality Linear Rails
*by T***A on February 23, 2023*

I took a chance on a recommendation from a friend on these Iverntech MGN12-H linear rails, and I was very happy with what I saw and received. The linear Rails and Blocks come in a box, wrapped in a bubble wrap tube, and the Liner Rails are sealed in an air tight Bag. Very well packaged, and there was no damage during shipping. (See Photos) What I liked: 1. The packaging. Protective, and air tight to prevent contamination and rust. No rust on any of the 4 I purchased. (Most likely because they know how to package them to prevent rust) 2. The light coating of protective oils to keep the rail and block rust free was just the right amount, it was not all sticky. 3. The precision, and quality of the machining on the rails is excellent. High Quality in my opinion. 4. The precision and high quality of the MGN-H Rail Blocks was outstanding. High Quality in my opinion. 5. Easy to clean the protective oils with just IPA. Soaked them over night in an air tight container, and the were free of protective oils. 6. All 4 linear rails I purchased had all the ball bearings in each block. No missing balls. The balls were of high quality in my opinion. 7. Disassembly of each bearing block was easy, and no issues were found with in the block itself. 8. Tapped threaded holes were clean and chip free. Good quality control there. 9. Very quit operation on the machine. No grinding noises, or flat spots on the balls that would have made them noisy. 10. The high quality of my prints because of the high quality of these Linear Rails. Just outstanding! 11. No having to constantly adjust wheels on my 3D Printer, or change them out due to them being worn out. What I didn't like: NOTHING, I have no complaints what so ever. These are high quality, low price Linear rails. Conclusion: If you want to convert your 3D Printer to linear rails, Then I highly recommend this brand. Inverntech. For $21.00 each, you actually get a high quality product. I have purchased other brands, and they just do not match up to Inverntech's.

### ⭐⭐⭐⭐⭐ Small details add up to big performance!
*by M***R on January 4, 2019*

These rails really perform pretty amazingly right out of the box. Unlike a lot of the cheaper Hiwin replicas out there, these came nicely oiled and sliding smoothly instead of covered in shipping wax and dragging. That being said, I still did my standard practice of disassembling the rails, cleaning with isopropyl alcohol and re-lubricating with Slick50 Supercharged One Lube and MAN are these things smooth now! While I had them apart, I noticed a few small details that I think are major contributors to these rails performing better than most. First, the quality of the molded plastic parts is much better than expected. There is no flash on any of the edges and they all fit together nicely. Second, and maybe more importantly, the start and end of the tracks that the balls actually roll in have been carefully relieved and tapered so that when the balls enter and exit the tracks there is no hard edge to roll ever and cause any clicking or dragging. These rails are FAR better quality than the offerings of RobotDigg and blow v-slot wheels rolling in 2020 aluminum extrusions out of the water. In my case, an Ultibots D300VS+ delta printer, the swap from v-slot wheels to these linear bearings cause the result of a vase mode test print to go from the ripply appearance of the blue part pictured to the buttery smooth appearance of the black part using the same g-code! Long story short, these are pretty great rails in my experience. Give them a shot!

### ⭐⭐⭐⭐ Needed to replace the bearing balls for better performance; nevertheless would buy again.
*by J***A on September 27, 2025*

The best off-brand rails I have ever seen. On disassembly they were clean and well made. The pretensioning was good and uniform the length of the rail. They also were well lubricated and suitable for use right out of the box. However the travel showed moderate sticking. So I replaced the bearing balls with 3/32 silicon nitride balls, and that solved the problem. Probably a couple of balls were slightly over sized. The G5 nitride balls were probably overkill but I thought why mess around.

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-04*