MLX Series Vertical Mill Gearboxes

MLX Series Vertical Mill Gearboxes
Description :

Vertical mills require extremely high rated power and extremely high usability. MLX series vertical mill gearboxes as the key component of vertical mills, are used for transmitting power, reducing the motor speed to reach the rotating speed required by the mill during grinding process, and supporting the millstone. High axial force and partial radial force generated during the grinding process are transmitted to the mill foundation through thrust bearing and the housing.


1. Gearbox Housing: Cast Iron
2. Gearset:
  • MLY Series: 2 Stage, 1 Stage Spiral Bevel Gear Pair + 1 Stage Planetary Gear Pair
  • MLXSD Series: 3 Stage, 1 Stage Spiral Bevel Gear Pair + 1 Stage Helical Gear Pair + 1 Stage Planetary Gear Pair
  • MLXSS Series: 3 Stage, 1 Stage Spiral Bevel Gear Pair + 2 Stage Planetary Gear Pair
3. Input Configurations:
Keyed Solid Shaft Input
4. Output Configurations:
Mounting Circular Disc for Connection with Millstone

Models & Parameters:

  • MLX Series:
    Rated Power: P=50kW~4000kW
    Ratio: Maximum i=50
    Models: MLX5~MLX500
    Input Shaft Diameter: 65~250mm
    Input Shaft Center Height: 260~1100mm
    Mounting Circular Disc Diameter: 980~3850mm
  • MLXSD Series
    Rated Power: P=1400kW~7000kW
    Ratio: Maximum i=65
  • MLXSS Series
    Rated Power: P=2000kW~9000kW
    Ratio: Maximum i=80


1. Bevel and planetary gears carburizing, quenching, grinding, gear profile modification, crack detection process, and gear tooth root shot blasting treatment. Optimized gears meshing accuracy, lower noise, and high efficiency
2. Gearbox and planetary frame are analyzed by FEM and optimally designed, in order to ensure less deformation during operation process, and more stable operation
3. Secured manufacturing quality and higher reliability
4. Customizable sizes and configurations according to the requirements


  • Vertical Mills, Cement Mills, Coal Mills
  • Applied to raw material grinders
  • Applied to crushing coal sheets in coal industry
  • Applied to crushing limestone, cement clinker, slag, lime, gypsum, coal ash, and ores in building and mine industry


Vertical Mounting, Circular Disc is Connected to Millstone