Down-the-hole (DTH) drilling technology stands as one of the most critical innovations in modern rock drilling engineering. As the core component of the entire drilling system, DTH drill bits directly determine drilling efficiency, service life, project cost and construction safety. DTH drill bits connect with DTH hammers through precision spline structures. During high-speed drilling, they bear strong alternating impact loads from the hammer piston, continuous rotating torque and severe friction from rock particles. This harsh working environment puts forward extremely strict requirements on material performance, structural design and manufacturing process: the bit body must have high strength and fatigue resistance, and the carbide teeth must have excellent impact toughness and wear resistance to ensure stable operation under complex geological conditions.
In recent years, breakthroughs in tungsten carbide sintering technology have promoted the emergence of ultra-coarse grain and nano-grain carbide materials. These new materials perfectly balance high toughness and high wear resistance, break through the performance bottleneck of traditional carbide teeth, and greatly expand the application scope of DTH drill bits in extreme working conditions.
Luoyang Jinlu Geological Tools Co., Ltd., as a professional manufacturer focusing on rock drilling and construction tools for many years, has been deeply engaged in the R&D and manufacturing of DTH hammer tools for a long time. The Rock Drilling & Construction Tool Division provides a full product portfolio including rock drilling tools, coal mining picks, construction tools, wear-resistant and crushing tools. Relying on advanced production technology, strict full-process quality control and continuous independent R&D innovation, Jinlu has formed core technical advantages in DTH drill bit design and manufacturing, delivering high-performance, long-life and cost-effective drilling solutions for global customers.
The core competitiveness of Jinlu DTH drill bits comes from three irreplaceable technical strengths:
(1)Full-chain self-researched tungsten carbide materials. Independent control from powder formula, sintering to tooth forming; ultra-coarse grain carbide ensures high toughness and excellent wear resistance.
(2)High-reliability tooth-fixed bit bodyFinite-element. Simulation and engineering testing optimize tooth retention structure, greatly reducing tooth loss and breakage.
(3)Exclusive hard-rock specialized design. Optimized spherical tooth layout, reasonable air exhaust and smooth chip removal improve drilling efficiency and stability.
Compared with competitors, Jinlu DTH drill bits feature strong impact resistance, ultra-hard rock adaptability, long service life and less downtime. With independent R&D and large-scale production, the company maintains reasonable pricing and high cost performance, supported by professional selection guidance and global after-sales service. For medium and large mines and engineering contractors, choosing Jinlu means higher efficiency, lower cost and more reliable construction guarantee.