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EIRICH TowerMill

What is TowerMill?

TowerMill is a vertical agitated media mill developed in Japan in the 1950s. Until now, TowerMills have been used in ferrous and non-ferrous mines for processes of ore grinding, flue gas desulfurization (FGD), limestone grinding for neutralization and futher in other industries such as environmental fields all over the world, for the advantageous capability of high capacity and fine grinding. In particular, TowerMills are adopted for replacing conventional horizontal ball mills or for fine grinding after coarse grinding by ball mills.



  • Feed size : under 10mm
  • Product size : from microns down to sub-microns
  • Standard mill size range from 0.4kW up to 1120kW
  • Energy saving due to highly effective grinding
  • Space saving and sutable for retrofitting
  • Low noise level and small vibration
  • Continuous and high capacity grinding
  • Maitenance-free mill body due to its unique shell grid liner mechanism (Material lining)
  • Simple grinding mechanism, solid structure
  • Less wear cost



Principle & Structure

EIRICH TowerMill effectively agitates the grinding media filled in mill shell with screw equipped with double helical flights. By the impact and abrasion effect the material is ground in mill shell.


Mill screw with double helical flights is hung in the cylindrical shell <Mill shell assembly> and it is rotated by the driving device <Main drive motor> installed at the top of TowerMill via the reduction mechanical device <Gear Reducer>.


TowerMill grinds the material in the slurry by impact/abrasion motion of grinding media. Mill body is made of normal steel and the internal surface is rubber lined for corrosion-resistance. For abrasion resistance, screw double helical flights are equipped with replaceable liners and mill body internal surface is equipped with shell grid liners that enables to form a layer of material (grinding media and grinding material) lining.



  • Limestone
  • Quicklime
  • Limeslake
  • Iron ore
  • Copper ore
  • Gold ore
  • Zinc/Lead ore
  • Nickel ore
  • FGD slurry
  • Coke-oil
  • Magnesium hydroxide
  • Fly and bottom ash
  • Others
  • Iron ore
  • Copper ore
  • Limeslake
  • FRP tip
  • Wood tip


Motor power
Height (m) Mill dia.
NE-008 0.4 1.6 0.14 Test
NE-024 7.5 3.2 0.44
ETM-10 15 4.4 0.60 Small
ETM-20 22 5.6 0.70
ETM-50 55 6.9 1.00
ETM-100 110 7.4 1.20
ETM-150 135 7.7 1.40
ETM-300 280 10.8 1.80
ETM-500 370 11.5 2.40
ETM-700 520 12.4 2.70
ETM-1000 750 13.1 3.30
ETM-1250 1000 13.6 3.30
ETM-1500 1120 14.2 3.30
ETM-1750 1300 14.6 3.30
ETM-2000 1500 15.1 3.30 Large



Project Reference

Check our Project Reference.