At Broshan India Pvt. Ltd., we specialize in precision core drilling for blast holes ranging from 100 to 110 mm diameter, designed specifically to meet the challenges of stone mining and hard strata environments.

What is Core Drilling?

Core drilling is a method of drilling that extracts a cylindrical core of rock or mineral from the earth. This technique is crucial for detailed geological analysis, accurate blast hole placement, and optimizing extraction in hard and abrasive rock formations.

Application in Stone Mining and Hard Strata

In environments where the rock is exceptionally tough, abrasive, and compact—such as granite, basalt, quartzite, and other hard strata—standard drilling methods often fall short. Our core drilling rigs and specialized bits are engineered to withstand these harsh conditions, ensuring:

• Precise, clean boreholes
• Minimal deviation during drilling
• Extended bit life through use of premium-grade materials
• Reduced downtime thanks to efficient drilling speed and robustness

Key Benefits of 100-110 mm Core Blast Hole Drilling:

• Accurate Blast Hole Sizing: Ideal diameter range for effective explosive loading and uniform fragmentation.
• Enhanced Rock Sampling: Core samples provide critical data for mine planning, improving safety and productivity.
• Superior Penetration in Hard Rock: Designed to tackle dense rock layers with minimal wear and tear.
• Optimized Drilling Performance: Advanced drill bits and rigs maintain consistent drilling rates even in abrasive conditions.
• Improved Blast Efficiency: Uniform holes lead to better blast results, reduced vibration, and controlled fragmentation.

Equipment & Expertise

Our fleet includes high-capacity core drilling rigs fitted with:

• Diamond-tipped and tungsten carbide drill bits for enhanced durability
• Precision stabilizers to maintain borehole alignment
• Advanced hydraulic systems for consistent drilling pressure and speed

Our experienced operators and engineers monitor and adjust drilling parameters in real time, ensuring maximum efficiency and safety throughout the drilling process.