Reliable, effective grinding technology


  • Size range from 5’ x 8’ with 75 HP to 30’ x 41’ and as much as 30,000 HP

Feed Size:

  • ­   Hard ores: 80% passing 1/4” (6 mm or finer)
  • ­   Soft ores: 80% passing 1” (25 mm or finer)


With more than 100 years of experience in developing this technology, Metso ball/pebble mills ensure the technology is working hard for you. Key benefits include:

  • Automatic operation, which saves power
  • Accompanying software to support the most complicated circuits and complex ores

Common flowsheets include:

  • Open circuit
  • Closed circuit with hydro cyclones
  • Closed circuit with vibration screens
  • Two-stage variations of the above, utilizing two mills in series
Brochure Ball Mills - English Download
Brochure Ball mills - Chinese Download

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