Hard rock mining has always been a challenge in the industry—high-density granite, quartzite, and other rock formations are hard and highly wear-resistant. Ordinary PDC teeth either cannot penetrate the rock or wear out quickly, requiring frequent tooth replacements, which not only slows down the process but also keeps costs high. ThePyramid PDC Insert, with its targeted structural design and material optimization, demonstrates superior adaptability in hard rock mining scenarios, becoming a practical choice to solve the “hard rock is hard to penetrate” dilemma.
Spiral Energy-Concentrating Design: The Hard Rock Cutting Advantage of the Pyramid PDC Insert
The core pain point of hard rock mining is the “difficulty in cutting in.” The planar or dome design of ordinary PDC teeth results in a large contact area with the rock formation but insufficient pressure, often requiring additional equipment thrust to penetrate. The Pyramid PDC Insert’s four-sided pointed structure perfectly solves this problem: the pointed contact area is only 1/3 that of ordinary teeth, resulting in highly concentrated pressure during cutting. This allows it to easily break through the compressive layer of hard rock surfaces, quickly biting into the rock strata like a “steel chisel.” In actual tests in granite mining areas with a hardness of 3.0 g/cm³, the Pyramid PDC Insert’s cutting speed was 25% faster than ordinary PDC teeth of the same specification, while reducing equipment thrust requirements by 18%, effectively reducing mechanical wear.
Strong and Tough Material: The Wear-Resistant and Impact-Resistant Performance of the Pyramid PDC Insert
In hard rock mining, cutting teeth not only face intense friction but also withstand the instantaneous impact of rock strata. Ordinary products often experience diamond layer detachment and tooth body fracture. The Pyramid PDC Insert uses a high-purity polycrystalline diamond layer and a high-strength cemented carbide matrix, achieving a tight bond through a high-temperature, high-pressure sintering process. This retains the high hardness and wear resistance of diamond while possessing the impact resistance and toughness of the alloy matrix. In complex hard rock mining areas containing quartz veins, after 16 hours of continuous operation, the diamond layer wear was only 0.25mm, with no chipping or detachment. When facing rock impacts, the pointed edges disperse the force, improving impact resistance by 40% compared to ordinary PDC teeth, significantly extending service life.
Cost Reduction and Efficiency Improvement Test: The Value of Pyramid PDC Insert in Hard Rock Mining
For hard rock mining areas, “high efficiency and minimal downtime” are the core benefits. A large hard rock iron ore mine previously used ordinary PDC teeth, requiring tooth replacements three times a day, reducing single-shift operation time to 6 hours, and increasing tool cost per ton of ore to 1.2 yuan. After switching to Pyramid PDC Insert, the tooth replacement cycle was extended to once every three days, single-shift operation time increased to 8 hours, and tool cost per ton of ore decreased to 0.8 yuan, resulting in monthly cost savings of over 150,000 yuan from tool and time optimization alone. This advantage of “fast entry, durable wear resistance, and low replacement frequency” has created a virtuous cycle of “efficiency improvement and cost reduction” in hard rock mining, making it a key contributor to increasing mine capacity.
For specific specifications, applicable scenarios, or to discuss cooperation regarding the Pyramid PDC Insert, please contact us through the following methods:
- Phone: +86 17791389758
- Official Email: jeff@cnpdccutter.com
Post time: Jan-09-2026
