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VERTIMILL<sup>®</sup> for fine grinding

VERTIMILL® for fine grinding

Metso draws from more than 100 years of mill design and manufacturing expertise, and three decades of successful VERTIMILL® applications.

Since its introduction in late 1979, over 300 VERTIMILLS® have been sold worldwide.
The VERTIMILL® has proven to be a versatile tool that exhibits many advantages over traditional ball milling.

The VERTIMILL® is capable of handling feed sizes up to 6 mm and grinding to products less than 20 microns, and has standard mill sizes ranging from 15HP (11kW) to 3000HP (2240 kW).

The VERTIMILL® is suitable for:

  • Primary grinding
  • Secondary grinding
  • Regrind applications
  • Fine grinding
  • Lime Slaking

Main benefits of VERTIMILL® are:
  • Higher energy efficiency – Typically 30-35% , greater than 50% energy savings has been reported
  • Lower operating cost
– Lower Media Consumption – Typically coincides with energy savings
– Requires Little Maintenance – saves time and labor
– Long Wear Life – lower wear parts costs and labor associated with replacement
  • High Availability -Greater than 98% is common
  • Lower installation cost –Shorter duration and simpler foundations
  • Requires less floor space
  • Less noise -usually below 85db
  • Greater operating safety
  • Main features of VERTIMILL® are:
  • Premium Efficiency High Torque Motor
  • Three Stage Reducer
  • Automatically greased bearings
  • Solid Steel Grinding Screw with bolt on replaceable liners
  • Orebed® Magnetic Shell Liners
  • Modular Mill Body
  • Access Door for maintenance and screw removal

Large scale installations of multiple Vertimill® are possible and are becoming more and more popular. One project is currently installing Sixteen (16) VTM-1500-WBs in a secondary grinding application. It is projected that the energy and media consumptions savings alone will be in excess of $100 million US Dollars over the life of the mine compared with traditional ball mills.

Metso has recently developed a 3000 HP (2240kW) Vertimill®, designated the VTM-3000-WB. It will begin operation in 2009 with a targeted through put of 2000 mtph. The development of this mill and larger Vertimills in the future makes the practicality of Vertimills® in Primary and Secondary grinding applications very economical.

Materials successfully ground in the Metso VERTIMILL® include the following:

Aluminum Oxide
Blast Furnace Slag
Calcined Bauxite
Calcium Carbonate
Coal – oil
Coal – water
Coal Tar Sludge
Coke – oil
Copper Molybdenum
Copper Concentrate
Copper Ore
Copper Slag
Copper-Lead-Zinc Ore
Decanter Tar Sludge
Ferro Alloy
Ferro Manganese
Gold Ore
Gold Tailings
Hydrated Alumina
Iron Oxide
Iron Sand
Lead Concentrate
Lead Zinc Ore
Lime (slaking)
Lime Powder
Magnesium Oxide
Magnetite Concentrate
Manganese Dioxide
Manganese Ore
Molybdenum Concentrate
Oil Sludge
Petroleum Coke
Phosphate Rock
Pottery Stone
Red Phosphorous
Rock Salt
Sand Iron
Silica Sand
Strontium Ferrite
Zinc Concentrate
Zinc Lead Ore

Our engineers will review your specifications and recommend the proper VERTIMILL® for your application.

See also VERTIMILL® for FGD applications
and VERTIMILL® for Lime slaking applications.


Vertimill and Stirred Media Detritors - English (pdf 387 kB) PDF

VertiMill and Stirred Media Detritors - Chinese (pdf 432 kB) PDF

VertiMill and Stirred Media Detritors - Russian (pdf 395 kB) PDF

Vertimill - Portuguese (pdf 321 kB) PDF

VTM Lime Slaker Technical data - English (pdf 214 kB) PDF