Test Background

During this quarry field test, the Dminingwell 115 High Air Pressure DTH Drill Bit was tested under complex geological formations, where granite, limestone, and gneiss alternate frequently.

These mixed rock layers posed demanding challenges for bit wear resistance, penetration efficiency, and structural stability.

The test aimed to evaluate the bit’s overall performance, including cutting efficiency, wear behavior, and service life under real drilling conditions.

Test Results

After continuous drilling operations, the bit achieved a total penetration depth of 209 meters.

Throughout the process, the Dminingwell drill bit showed uniform and expected levels of wear, with no chipping, tooth loss, or overheating.

Based on field data and remaining carbide volume, the bit is estimated to continue drilling for an additional 30 meters, confirming its excellent wear resistance and impact durability under high air pressure and high-impact environments.

Technical Highlights Premium Carbide MaterialThe Dminingwell bit uses high-grade tungsten-cobalt carbide, combining superior hardness and toughness to maintain sharp cutting performance even in hard rock formations. Optimized Tooth Design and Flushing StructureStreamlined flushing channels and optimized tooth geometry enhance rock-breaking efficiency and reduce secondary wear caused by poor chip evacuation. Precision Assembly and WeldingAutomated brazing ensures consistent bonding strength between the teeth and the body, minimizing vibration-related failures during high-frequency drilling. Stable and Predictable Service LifeConsistent wear across alternating rock types allows operators to accurately plan bit replacements and improve project scheduling efficiency.

Dminingwell 115 High Air Pressure DTH Drill Bit – Engineered for Tough Rock Conditions

Field Performance and Application Value

In alternating hard and medium-hard rock zones, the Dminingwell drill bit maintained stable drilling speed, efficient rock cutting, and smooth discharge of rock powder.

The bit’s steady wear curve enabled reliable prediction of remaining service life, reducing unplanned downtime and optimizing maintenance schedules.

For quarry and mining operations, these characteristics translate into higher productivity, lower cost per meter, and more predictable drilling performance.

Conclusion

This field test successfully verified that the Dminingwell 115 High Air Pressure DTH Drill Bit delivers efficient, stable, and durable performance in complex rock formations.

After drilling 209 meters with normal wear and an estimated remaining capacity of 30 meters, the bit proved its superior design, material quality, and reliability.

Dminingwell drill bits have demonstrated consistent performance advantages in challenging geological environments, providing a solid foundation for efficient quarrying and mining applications.

Dminingwell — Committed to high-performance drilling tools and reliable solutions for global rock drilling projects.

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