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    Epiroc Pit Viper 351 rigs for Peru copper mine: drill and blast gains for engineers

    July 15, 2026|

    Reviewed by Joe Ashwell

    First reported on International Mining – News

    30 Second Briefing

    Epiroc has secured a large order to supply a fleet of Pit Viper 351 surface blasthole drill rigs to a major Peruvian copper mine operated by a consortium of leading Chinese investment firms and an Australia-headquartered global miner. The Pit Viper 351 units, typically configured for large-diameter production holes and high bench heights, will be deployed to support a mine expansion phase. For drill and blast engineers, the standardisation on a single large-rig platform signals higher bench productivity and tighter control of fragmentation and blast patterns.

    Technical Brief

    • Units are designed for high benches, enabling fewer drill setups per vertical advance in large open pits.
    • Standard PV-351 configurations support both rotary and DTH drilling, allowing flexibility across variable rock strengths.
    • High bit load and pulldown capacity enable efficient penetration in hard, high-strength copper porphyries typical of Peru.
    • Automation-ready controls on PV-351 platforms allow later upgrades to remote or autonomous drilling fleets.
    • Standardising on a single large-rig class simplifies maintenance planning, critical spares inventory and operator training.
    • For expansion phases, large blasthole rigs typically reduce total drill hours per tonne moved versus mixed-size fleets.

    Our Take

    With 278 copper-tagged pieces in our database, most recent copper coverage has focused on processing and decarbonisation; a sizeable blasthole rig award in Peru signals that large greenfield or expansion drilling programmes are still moving ahead despite permitting and social headwinds in the country.

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    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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