Metso’s primary crushing progression: selection notes for mine planners and engineers
Reviewed by Joe Ashwell

First reported on International Mining – News
30 Second Briefing
Metso has expanded its primary crushing line-up with three new machines: the Primarok™ next‑generation primary gyratory, the Optirok™ evolved primary jaw crusher, and the Durarok™ large sizer for high-capacity installations. The range targets different front‑end configurations, from deep open pits feeding large gyratories to operations preferring jaw‑based plants or low‑height sizer stations. For mine planners and process engineers, the trio broadens options for matching crusher type to ROM fragmentation, bench geometry and downstream throughput constraints.
Technical Brief
- Primarok™ is positioned as Metso’s next generation of its existing primary gyratory crusher line.
- Optirok™ is described as an evolution of Metso’s established primary jaw crusher platform, not a clean-sheet design.
- Durarok™ introduces large sizer technology into Metso’s primary crusher portfolio, extending beyond its traditional gyratory/jaw offering.
Our Take
Across our recent Mining coverage, Metso features repeatedly in equipment and service stories, signalling that its primary crushing line is being backed by parallel investments in research capability, logistics and aftermarket support rather than as a standalone product push.
Metso’s new service centre in Prince George and the DHL 3PL deal in Australia indicate that the company is building regional support density around its crushing portfolio, which is likely to reduce perceived risk for greenfield projects specifying large primary units in remote hubs.
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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