Metso modular grinding classification system: design and schedule gains for plant engineers
Reviewed by Joe Ashwell

First reported on Australian Mining
30 Second Briefing
Metso has launched a configurable grinding classification system built from pre-engineered modules that combine ball mills, hydrocyclones and slurry pumps into a single, integrated package. The modular plant is designed for rapid installation in greenfield or brownfield concentrators, with standardised skids, piping and instrumentation allowing capacity to be scaled by adding parallel grinding lines. For process engineers, the approach reduces front-end engineering hours and shortens commissioning time, while keeping equipment compatible with existing Metso mill linings, cyclones and process control platforms.
Technical Brief
- Similar modular grinding trains are being adopted in satellite deposits where full bespoke concentrator design is uneconomic.
Our Take
Across our coverage, Metso’s new modular grinding classification system sits alongside its Geminex™ digital twin platform push, signalling a strategy to pair pre‑engineered hardware with advanced control for faster commissioning and optimisation of new plants.
The Australian Mining co‑byline and the recent Metso piece on critical minerals flowsheets suggest this modular system is being framed for Australian critical minerals projects, where juniors often need scalable, lower‑CAPEX grinding solutions that can be expanded as resources are proven.
In our database of 316 Mining stories, Metso also appears divesting non‑core Häggblom loading and hauling and opening a Pittsburgh bulk handling hub, which together indicate a sharpening focus on process equipment and systems like this grinding classification package rather than on mobile or ancillary product lines.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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