| Customization: | Available |
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| Type: | Core Drill |
| Usage: | Metal Drilling, Masonry Drilling |
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Impregnated diamond core bits are widely used in mining and geological surveys for drilling into hard rock formations. These core bits are designed to provide efficient and precise drilling in challenging conditions. Here are some key aspects of their performance and applications:
Diamond Impregnation: Impregnated diamond core bits are manufactured by embedding industrial-grade diamonds into a matrix of metal powder and binder. This impregnation process ensures that the diamonds are evenly distributed throughout the bit, providing consistent cutting performance.
Hard Rock Drilling: Impregnated diamond core bits are primarily used for drilling into hard rock formations, such as granite, basalt, limestone, and other abrasive rock types. They are well-suited for applications where conventional drilling methods may struggle to penetrate or maintain a reasonable drilling speed.
Cutting Efficiency: The diamond impregnation on the bit's surface enables it to grind and cut through hard rock formations effectively. As the bit rotates, the diamonds abrade the rock, creating a cylindrical core sample. The matrix material between the diamonds provides support and helps to channel the cut rock particles away from the cutting face.
Core Recovery: One of the crucial aspects of diamond core drilling is the recovery of an intact and undisturbed core sample. Impregnated diamond core bits are designed to maximize core recovery by minimizing core loss and maintaining core integrity during the drilling process. This is important for accurate geological analysis and ore reserve estimation.
Durability and Bit Life: The durability and life span of impregnated diamond core bits depend on various factors, including the quality of diamonds, matrix material, design, and operating parameters. These bits are engineered to withstand the high rotational speeds and abrasiveness of hard rock drilling. However, their lifespan can vary depending on the specific rock conditions and drilling techniques employed.
Water Cooling: To enhance performance and prolong bit life, water is typically used as a coolant and lubricant during drilling. It helps to reduce friction, remove drill cuttings, and prevent overheating of the diamonds and the bit itself.
It is worth noting that technological advancements and ongoing research continue to improve the design and performance of impregnated diamond core bits, leading to enhanced drilling efficiency and productivity in mining and geological applications.
Diamond Impregnation: Impregnated diamond core bits are manufactured by embedding industrial-grade diamonds into a matrix of metal powder and binder. The diamonds are evenly distributed throughout the bit, ensuring consistent cutting performance.
Matrix Material: The matrix material acts as a support structure for the diamonds and helps to channel the cut rock particles away from the cutting face. Common matrix materials include bronze, tungsten carbide, and synthetic materials such as polycrystalline diamond compact (PDC).
Diamond Grade: Impregnated diamond core bits use various diamond grades, which refer to the size and quality of the diamonds used. Different grades are selected based on the hardness of the rock formations and the desired drilling efficiency.
Bit Design: Impregnated diamond core bits come in various designs to suit different drilling applications. The design includes the arrangement and pattern of the diamonds on the bit surface, the shape and size of the waterways for cooling and debris removal, and the overall geometry of the bit.
Waterways: Impregnated diamond core bits typically have waterways or flushing holes designed to facilitate the flow of water or drilling fluids. These waterways help to cool the bit, lubricate the cutting surface, and flush away the drill cuttings.
Connection Types: Impregnated diamond core bits are available with different connection types to fit various drilling rigs. Common connection types include threaded connections, such as API threads, and others like C-ductile connections.
Bit Sizes: Impregnated diamond core bits come in a range of sizes to accommodate different drilling requirements. The bit sizes can vary from small diameters for detailed sampling to larger diameters for faster drilling and larger core samples.
Wear Resistance: Impregnated diamond core bits are designed to withstand the abrasiveness of hard rock drilling. The combination of the diamond impregnation and the matrix material provides excellent wear resistance, allowing for longer bit life and consistent drilling performance.
Core Recovery: Impregnated diamond core bits are designed to maximize core recovery, ensuring the retrieval of intact and undisturbed core samples. The bit design, including the shape and configuration of the diamonds and waterways, plays a role in optimizing core recovery.
Versatility: Impregnated diamond core bits can be used in a variety of drilling applications, including mineral exploration, geological surveys, geotechnical investigations, and other rock drilling projects. They are suitable for drilling into hard rock formations, such as granite, basalt, and limestone.
Hardness table
Rock Type |
Rock Hardness |
Abrasiveness |
Hardness NO. |
Clay,Shale,Ash Stone,Gypsum,Tuff,Serpentinite,Calcite, Coal,Argillite,Volcanics,Sandly Pebble |
Soft |
Medium |
BST 1/3 |
Sandstone,Lithoid Limestone, Limonite |
Medium Soft |
Very High |
BST 3/5 |
Medium Hard Sandstone,Hard Shale, Hard Ash Stone,Dolomitic,Marble,Hard Schist, Hard Streak Stone,Siltstone,Andestite |
Medium |
High |
BST 5/7 |
| Peridotite,Gneiss,Limonite | Medium Hard |
Medium High |
BST 7/9 |
Pegmatite,Schist,Norite,Syenite,Gabbro,Peridotite, Grandiorite,Granite,Basalt,Hard Streak Stone |
Hard |
Medium To Low |
BST 9/11 |
| Amphibolite,Diorite,Rhyolite,Quartzite | Very Hard | Medium To Low | BST 11 |
Silicious,Hard Sandstone,Rhyolite, Dense Quartzite,Ironstone,Taconite,Jasperite,Chert |
Utral Hard |
Low |
BST 14 |
Customization:
We offer custom Impregnated Diamond Core Bit services for core assembly, core exploration, geotechnical engineering, and more. Our custom core bits are available in a variety of thread types (API, Metric, etc.), impregnation types (oil or wax), and cutter types (impregnated diamond). Our custom Impregnated Diamond Core Bits are perfect for drilling applications.
| Type | AQ/B | BQ/B | NQ/B | NQ3/B | HQ/B | HQ3/B | PQ/B |
| O.D(mm) | 47.7 | 59.6 | 75.4 | 75.4 | 95.7 | 95.7 | 122.3 |
| O.D(inch) | 1.88 | 2.35 | 2.97 | 2.97 | 3.77 | 3.77 | 4.81 |
| I.D(mm) | 27.1 | 36.5 | 47.7 | 45.2 | 63.6 | 61.2 | 85.1 |
| I.D(inch) | 1.07 | 1.44 | 1.88 | 1.78 | 2.50 | 2.41 | 3.35 |
| Type | PQ3/B | NWM/B | NWG/B | NMLC/B | HMLC/B | NQTT/B | HQTT/B |
| O.D(mm) | 122.3 | 59.6 | 75.4 | 75.4 | 98.9 | 75.4 | 95.7 |
| O.D(inch) | 4.81 | 2.35 | 2.97 | 2.97 | 3.89 | 2.97 | 3.77 |
| I.D(mm) | 83 | 36.5 | 54.8 | 52.1 | 63.6 | 45 | 61.1 |
| I.D(inch) | 3.26 | 1.44 | 2.16 | 2.05 | 2.5 | 1.77 | 2.4 |
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