From October 28th to 31st, 2025, the 21st China International Coal Mining ToolsTechnology Exchange and Equipment Exhibition will be held at the China International Exhibition Center (Shunyi Hall) in Beijing. Luoyang Golden Egret Geotools will present its full range of rock drilling engineering tools, including DTH drilling tools, coaling mining picks, PDC drilling tools, and wear-resistant wear and crushing tools, at the A4 Hall, Booth 327. It will offer customers comprehensive solutions for mining and geological engineering drilling. We look forward to meeting you at the exhibition site!
In the field of mine mining, the efficiency and cost of roadway support operations directly affect the entire mining process. In coal mines with medium-hard rock strata, traditional anchor bolt drill bits often encounter problems such as low drilling efficiency, short service life, and low hole formation rate. To address these issues, Luoyang Golden Egret Geotools PDC anchor bolt drill bits, through a series of technological innovations, have become an ideal solution to the problem of improving the efficiency of roadway support in coal mines.
1.PDC Driliing Bits and Drilling Tools Introduction
In the field of mine mining, the efficiency and cost of roadway support operations directly affect the entire mining process. In coal mines with medium-hard rock strata, traditional anchor bolt drill bits often encounter problems such as low drilling efficiency, short service life, and low hole formation rate. To address these issues, Luoyang Golden Egret Geotools PDC anchor bolt drill bits, through a series of technological innovations, have become an ideal solution to the problem of improving the efficiency of roadway support in coal mines.
The typical thread size of this type of drill bit is M14. It can be used in conjunction with hydraulic or pneumatic anchor drill rigs. Usually, it is connected to the drill pipe with a B19 coupling. There is also an internal thread of B19, which can be directly connected to the drill rods.
In terms of material, the PDC anchor drill bit is made of a combination of high-strength alloy steel and polycrystalline diamond. This design not only ensures the robustness of the drill bit body but also guarantees the ultimate wear resistance of the cutting part.
2. Advantages of PDC Drilling Bit
2.1Extremely durable, significantly enhanced service life.
The PDC anchor drill bit is mainly equipped with diamond composite teeth. Its service life is over 10 times longer than that of hard alloy and 4-5 times longer than that of ordinary diamond drill bits. Our company's composite tooth wear ratio is as high as 12.5×10^5. This remarkable advantage significantly reduces the frequency of drill bit replacement and minimizes the downtime caused by frequent drill bit changes.
2.2Efficient drilling, with a significant increase in speed.
The PDC drill bits replace the traditional crushing method of rock-breaking with a shear-breaking method, increasing the energy utilization rate for rock-breaking by 3 to 5 times. This efficient rock-breaking mechanism enables the PDC drill bit to achieve a doubling of mechanical drilling rate in suitable formations, and also helps to extend the service life of the drilling equipment. Using PDC anchor drill bits for rotary drilling, efficient drilling can be achieved in rocks with f < 12. Especially in medium-hard rock layers, its efficiency advantage is more obvious.
2.3A variety of composite blade types, meeting multiple working condition requirements.
Luoyang Golden Egret Geotools PDC anchor drill bit adopts the design of multiple composite blade types, which can meet the multi-working condition and multi-demand scenarios under different geological conditions and drilling requirements. The rich blade type selection enables engineering technicians to choose the most suitable drill bit type according to the specific characteristics of the rock layer, thereby achieving the best drilling effect.
3.Application: Different Enviroments
3.1The PDC anchor drill bit is mainly used in the field of coal mine tunnel support.
When used in conjunction with hydraulic and pneumatic anchor drill machines, it can efficiently complete the drilling operations before the installation of anchor rods. In the fields of mining and engineering reinforcement support, the PDC anchor drill bit also demonstrates significant advantages.
It is applicable to various rock conditions with f < 12, and performs particularly well in medium-hard rock layers such as sandstone. Especially in rock layers of grade 6-8, the drilling effect is particularly remarkable. The field test results show that the PDC anchor drill bit is an ideal drill bit for drilling in hard rock layers. Besides the coal mine sector, the PDC anchor drill bit can also be applied in construction industries such as geological exploration, water conservancy and hydropower, highways, railways, and bridges, demonstrating wide applicability.
4.Application Case: Practical Verification of Outstanding Performance
The Luoyang Jinlu PDC anchor drill bit has demonstrated its outstanding performance in numerous practical applications.
A company in China Inner Mongolia
Rock types: White sandstone, coal gangue (F10-F15)
Our product: B1928-1305X1.
Two test cases: The two products were respectively drilled to 14 meters and 13 meters. The composite sheet showed slight wear, but they can still be used. The overall drilling speed was 0.9 meters per minute. Customer evaluation: Competitors' products have a better lifespan of 8-9 meters. Our product's lifespan and efficiency are both superior to the products currently in use.
With the increasing demands of the coal industry for construction efficiency and economic benefits, Luoyang Golden Egret Geotools PDC anchor drill bits, thanks to their outstanding wear resistance, high drilling speed and wide adaptability to various rock layers, are becoming the preferred choice for more and more coal mining enterprises.
About Luoyang Golden Egret Geotools construction Tools: Coal mining picks, wear and crushing tools, DTH drilling tools etc. Welcome to contact us for more information: www.xtcgtl.com