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North Star DTH Drill Rods Application: Blast Hole Drilling on Open-Pit Mine Bench

Project Overview

This field application takes place on the working bench of a large open-pit mine. A fleet of integrated DTH drill rigs are deployed side by side to carry out mass blast hole drilling for rock stripping and mining excavation. Operators drill vertical blast holes into hard, abrasive bedrock in shifts throughout the day. Under this continuous heavy-load mining condition, drilling tools face repeated high impact and severe rock abrasion.

Adopted product: North Star DTH drill rods Working condition: Hard abrasive rock, multi-rig parallel operation, 24h shift blast hole drilling on open-pit mine bench.

Construction Challenges

The mine bench features dense hard rock with fissures. During blast hole drilling, drill rods suffer continuous impact loading and abrasive wear. Common on-site troubles include accelerated thread wear, unexpected drill rod breakage, frequent tool replacement and unplanned rig shutdowns. These issues slow down overall mining progress and increase the total cost of drilling consumables.

On-site Application & Performance

The site team fitted North Star DTH drill rods onto integrated DTH drill rigs for bench blast hole construction. With multiple rigs working in parallel on the mine bench, North Star DTH drill rods maintain stable threaded connections and good borehole straightness during long-duration hard rock drilling.

DTH Downhole Tooling

Practical field results show the drill rods match well with the on-site DTH drill rigs. They help raise penetration efficiency, cut the consumption of drilling tools, and reduce production downtime caused by drill rod failure. The drill rods deliver consistent and dependable performance under the harsh, highly abrasive open-pit mining environment.

Practical field results show the drill rods match well with the on-site DTH drill rigs. They help raise penetration efficiency, cut the consumption of drilling tools, and reduce production downtime caused by drill rod failure. The drill rods deliver consistent and dependable performance under the harsh, highly abrasive open-pit mining environment.

Need the Right DTH Drill Pipe Configuration?

Indiquez-nous la marque et le modèle de votre installation, les dimensions des tiges de forage, le type de raccord fileté, le profil de l'alésage et les conditions du sol. North Star pourra ainsi examiner vos besoins et vous aider à identifier les tiges de forage et l'outillage de fond de trou adaptés.

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