MGN7H-300mm Linear Guide Rail

MGN7H Linear Guide Rail of 300mm length is a linear rail used to build a  3D printer with 250mm specs and also can be used in CNC machine PCB/IC assembly, etc. This guide rail is to be used with the MGN7H rail block. The rail is used for smooth and precise linear motion and it is fit for Semiconductor manufacturing equipment, printed circuit board IC assembly equipment, medical equipment. Also used in machine arm, precision measuring instruments, office automation equipment, and other small linear sliding devices.


  • Linear guide rail length: 300mm
  • Linear guide rail width: 7mm
  • Material: 440c SUS Stainless Steel
  • Functional grease / lubrication port
  • Suitable for:
    • Voron 2 – 250 spec
    • Voron Trident – 250 spec