Metso‑Loesche Launch VRM Dry Grinding Tech

Why It Matters

The VRM offers mining firms a lower‑cost, lower‑energy grinding option, accelerating the shift toward sustainable, water‑free mineral processing.

Key Takeaways

• VRM replaces HPGR, horizontal and stirred mills
• Energy use drops significantly in primary grinding
• Wear‑part consumption reduced, lowering operating expenses
• Produces steeper, consistent particle‑size distribution
• Enables water‑free, coarse beneficiation flowsheets

Pulse Analysis

Vertical roller mills have long been a mainstay in cement production, where their ability to grind large feed rates with high energy efficiency is well documented. By adapting VRM technology for mineral processing, Metso and Loesche are extending a proven platform into a sector that traditionally relies on energy‑intensive HPGRs and ball mills. The partnership leverages Metso’s comprehensive service network and Loesche’s expertise in wear‑material engineering, delivering a turnkey solution that can be retrofitted into existing plants or incorporated into greenfield projects.

For mining operators, the shift to dry grinding addresses two critical cost drivers: electricity and water. VRM’s higher grinding efficiency reduces kilowatt‑hour consumption per tonne of ore, while the dry process eliminates the need for large slurry circuits, cutting water procurement and treatment expenses. Moreover, the technology’s ability to produce a narrower, steeper particle‑size distribution improves downstream flotation and magnetic separation, enhancing overall mineral recovery and reducing reagent usage. These operational gains align with the industry’s broader sustainability targets and the growing regulatory pressure to lower carbon footprints.

Strategically, the Metso‑Loesche alliance positions both companies to capture a growing niche in sustainable comminution. With over 2,400 VRM installations worldwide in cement and other sectors, the partners can draw on extensive performance data to reassure skeptical mine managers. Early adopters are likely to be large‑scale copper and nickel producers seeking to modernize legacy circuits. As the technology proves its ROI, broader market penetration could reshape grinding equipment competition, prompting rivals to accelerate their own dry‑grinding innovations.