Beefy 400mm Stainless Steel MGN12 Linear Rail Guide With MGN12H Carriage Block For 3D Printers And CNC Machines, High Precision Smooth Motion, 440C Rail And Block, Four M3 Holes For Easy Mounting

Premium 400mm Stainless Steel MGN12 Linear Rail Kit
✔️ 400mm stainless rail with MGN12H carriage, four M3 holes (single kit)

This high-precision stainless steel linear rail kit delivers smooth, accurate motion for 3D printers and CNC machines, ideal for precise travel in X, Y, or Z axes and heavy-duty builds.

✅ Rail length 400 mm, stainless steel 440C, high wear resistance
✅ Carriage block MGN12H, compact size 45.7×27×10 mm
✅ 4-M3 threaded holes on block, 20×20 mm center distance
✅ Rail hole spacing 25 mm; compatible with 20 series EU Al-profile
✅ End stoppers prevent block from falling off the rail
✅ Packing list: 1x 400 mm stainless steel MGN12 rail, 1x MGN12H carriage (installed on rail)

💡 What is a stainless steel linear rail guide used for in precision machinery?

These guides are handy for achieving smooth and precise motion in equipment like 3D printers and CNC machines.

- High rigidity and wear resistance for repeatable positioning - Easy mounting to EU profiles and compatibility with MGN12H carriages - Smooth motion reduces vibration and improves print/cut accuracy - Durable 440C stainless steel for long service life