MMD semi-mobile sizer stations for rare earths: haulage and energy gains for mine engineers
Reviewed by Tom Sullivan
First reported on Australian Mining
30 Second Briefing
Growing demand, complex geology and shifting rare earth supply chains are driving miners to adopt MMD Group’s semi-mobile sizer stations at the pit rim instead of conventional truck-and-shovel haulage to fixed crushers. The sizers’ low roll speed and self-cleaning tooth design handle wet, sticky and variable ore, reducing fines and blockages while maintaining consistent product size for downstream flotation or leaching circuits. Relocatable units on crawlers or skids allow progressive pit advance, cutting haul distances, trimming energy use and limiting the footprint of permanent crushing infrastructure.
Technical Brief
- Sizers have a self-cleaning design ideal for processing wet and sticky material.
Our Take
Rare earth coverage in our mining database is relatively thin compared with iron ore or gold, so an Australia-focused rare earths piece signals how quickly the country is trying to convert its geological endowment into downstream, higher-value products.
MMD Group appearing in a rare earth context suggests sizing and materials-handling kit is being adapted for abrasive, fine-grained REE ores, which typically demand tighter control of particle size to optimise downstream separation and reagent use.
With this article tagged to both Product and Sustainability, the focus on rare earths in Australia likely reflects mounting pressure from OEMs and governments for ‘cleaner’ supply chains, giving equipment suppliers like MMD Group leverage if they can demonstrate lower energy use and reduced tailings volumes in REE circuits.
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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