MGN12H 400mm Linear Rail Guide With Two Carriages For 3D Printer And CNC Upgrade Heavy Duty 8mm Linear Slide High Precision Steel Rails Industrial Grade Motion System For Smooth Accurate Movement

Dual-Carriage 400mm MGN12H Linear Rail Guide for CNC
✔️ High-precision 400mm rail with dual carriages, 2-piece pack

This heavy-duty 400mm MGN12H linear rail guide comes with two carriages and is built to handle demanding CNC and 3D printer upgrade projects. The package includes two 400mm rails, each pre-oiled and ready for quick installation onto EU 20-series aluminum profiles. This setup delivers rigid support and smooth, accurate movement for high-precision motion control.

Package includes two 400mm rails with two carriages each, ready for immediate use on compatible aluminum profiles.

✅ 400mm length rail with MGN12H profile
✅ 2 carriages per rail (pack of 2 rails total)
✅ Heavy-duty bearing steel for high stiffness and durability
✅ Pre-lubricated and individually packed for easy installation
✅ Requires M3 T-nuts and screws for 20-series EU profiles

Parameter	Value
Rail length	400 mm (15.75 in)
Rail type	MGN12H
Carriages per rail	2
Material	Bearing steel
Pack	2 rails with 2 carriages each

💡 What is a MGN12H linear rail used for in CNC machines and 3D printer builds? This handy component ensures precise, guided motion across moving axes. - precise linear motion for CNC and 3D printer platforms - smooth, low-friction travel for accurate positioning - quick mounting with M3 fasteners on EU 20-series aluminum profiles - durable bearing steel construction for long service life