Home » DTH bits » High-Quality Tungsten Carbide DTH Drill Bits from a Leading Chinese Supplier: D Miningwell Empowers Drilling Projects Across Industries

High-Quality Tungsten Carbide DTH Drill Bits from a Leading Chinese Supplier: D Miningwell Empowers Drilling Projects Across Industries

High-Quality Tungsten Carbide DTH Drill Bits from a Leading Chinese Supplier: D Miningwell Empowers Drilling Projects Across Industries

In engineering fields such as mineral exploration, water conservancy construction, and transportation infrastructure, efficient and reliable drilling equipment is crucial for the smooth progress of projects. As a core component, the performance of Down-the-Hole (DTH) drill bits directly determines drilling efficiency and cost control. Hailing from China, Zhejiang Minsheng Supply Chain Management Co., Ltd. (D Miningwell) leverages over 20 years of industry experience and technological innovation to produce tungsten carbide DTH drill bits that stand out for their exceptional quality and adaptability, making them a preferred choice for global drilling projects.

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Content

The outstanding performance of D Miningwell’s tungsten carbide DTH drill bits stems from strict quality control throughout the entire process, from raw materials to production techniques. High-quality alloy steel is selected as the base material, combined with advanced cemented carbide inlay technology and enhanced by special heat treatment processes. This enables the drill bits to maintain stable operation even when facing hard rock formations such as carbonate rock, limestone, and sandstone, while also effectively reducing energy consumption. This robust combination of materials and craftsmanship not only endows the drill bits with distinct advantages but also helps them excel in practical applications.

In terms of core advantages, this series of drill bits first boasts an extra-long service life. The wear resistance and fatigue resistance of the alloy steel material allow the drill bits to outlast similar products, reducing the frequency of bit replacement and lowering project consumable costs. Second, they deliver high drilling efficiency: the wear-resistant design of the bit teeth ensures long-lasting sharpness, significantly improving cutting speed and shortening the time required for single-hole drilling. Third, their stable drilling speed is achieved through a unique rock-breaking method—breaking rock via scraping and shearing actions, which avoids the speed fluctuations common in traditional impact-based rock breaking and ensures steady project progress. Additionally, the drill bits offer excellent diameter retention: their strong wear resistance prevents the bit diameter from wearing down during long-term use, allowing the cutting teeth to fully exert their effectiveness and avoiding rework caused by reduced hole diameter. Finally, they have a wide range of applications. Practical tests have proven that they can adapt to various complex geological conditions, including argillaceous rock, siltstone, and rock formations with a hardness of 6-8 grades. They perform particularly well in hard rock drilling, meeting the needs of different engineering scenarios.

To cater to diverse drilling requirements, D Miningwell provides a rich selection of drill bit models covering different drilling sizes and parameters. Taking the CIR series and DHD series as examples:

In the CIR series, the CIR76-76 model has a gauge button size of φ125mm, a front button size of φ123mm, a shank diameter of φ43mm, and a weight of only 2.1kg, making it suitable for small-diameter, lightweight drilling operations.
The CIR170-185 model, on the other hand, features gauge buttons and front buttons of φ169mm and φ146+φ146mm respectively, with a shank diameter of φ102mm and a weight of 21.8kg, capable of handling medium-to-large diameter hard rock drilling.

The DHD series focuses more on professional scenarios. For instance, the DHD380-254 model has a head diameter of 254mm, a shank length of 350mm, and adopts a 10-tooth spline design. Its gauge button size is φ1812mm, front button size is φ1812+φ168mm, and it weighs 62.4kg. This model can meet the high-intensity operation needs of large-diameter and deep-hole drilling. Detailed parameters can be accurately matched to project specifications through the product technical sheet.

In terms of application scenarios, D Miningwell’s tungsten carbide DTH drill bits have been deeply integrated into the field of geological exploration, helping exploration teams efficiently obtain underground rock formation data. In coal mining, their wear resistance ensures the continuity of underground drilling. In water conservancy and hydropower projects, the stable performance of the drill bits effectively improves construction efficiency when drilling diversion tunnels and grouting holes in complex rock formations. Furthermore, these drill bits are widely used in foundation surveys for highway, railway, and bridge construction, as well as in pile foundation drilling in urban construction, comprehensively empowering infrastructure development.

Behind these high-quality products is the strength of Zhejiang Minsheng Supply Chain Management Co., Ltd. (D Miningwell). The company owns a 5,000-square-meter production workshop, equipped with independent production facilities for drilling rigs, DTH hammers, and drill pipes. Its “Hunter” drilling rigs and “Santerock” drilling tool brands have earned a solid reputation in the industry. Beyond mature OEM customization capabilities—providing flexible solutions tailored to customers’ project needs—the company has also established a comprehensive service system, including 24/7 online after-sales support, ensuring that customers receive timely assistance when encountering issues during equipment use. From the establishment of an experimental factory through a shareholding reform in 2001, to the launch of its foreign trade business in 2017, and now as a key supplier in the global mining equipment sector, D Miningwell has always adhered to the concept of “win-win cooperation.” It works hand in hand with domestic and international partners to continuously inject impetus into the drilling engineering industry through technological innovation and high-quality products.

Whether for large-scale infrastructure projects pursuing efficient operations or specialized geological exploration requiring precise adaptation, D Miningwell’s tungsten carbide DTH drill bits, with their core advantages of “durability, efficiency, and stability,” have become a shining example of “Made in China” in the global drilling field, providing solid support for the smooth advancement of various projects.

Technical Parameters
Model：	Head diameter：	Shank length：	Spline：	Port holes：	Gauge buttons：	Front buttons：	Weight：
DHD25A-76	76	174	6	2	φ14mm*6	φ11mm*4	3.2kg
DHD35A-90	90	180	8	2	φ14mm*6	φ12mm*5	4.7kg
DHD35A-100	100	180	8	2	φ14mm*6	φ12mm*5	4.8kg
DHD340-108	108	209	8	2	φ16mm*7	φ14mm*6	7.85kg
DHD340-130	130	209	8	2	φ16mm*8	φ14mm4+φ13mm3	8.88kg
DHD350-140	140	260	8	2	φ18mm*7	φ15mm4+φ14mm3	15.8kg
DHD350-152	152	260	8	2	φ18mm*8	φ14mm*8	17kg
DHD350-178	178	260	8	2	φ18mm*8	φ16mm6+φ14mm5	20.4kg
DHD360-154	154	308.5	8	2	φ18mm*8	φ16mm4+φ15mm4	22.5kg
DHD360-178	178	308.5	8	2	φ18mm*8	φ16mm6+φ15mm5	26.1kg
DHD360-203	203	308.5	8	2	φ18mm*10	φ16mm8+φ15mm6	30.4kg
DHD380-203	203	350	10	2	φ18mm*10	φ18mm4+φ16mm10	48.5kg
DHD380-254	254	350	10	2	φ18mm*12	φ18mm12+φ16mm8	62.4kg

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