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