Audited Supplier
Durable Diamond Core Drill Bit for Geological Exploration Core Drilling
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.
Carbon bit choice chart
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 |
Parameter of Diamond Core Bit
| 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 |
Parameter of Casing Shoe
| Type | AW/B | BW/B | NW/B | HW/B | HWT/B | PW/B |
| O.D(mm) | 59.5 | 75.2 | 91.8 | 117.4 | 117.4 | 143.4 |
| O.D(inch) | 2.34 | 2.96 | 3.61 | 4.62 | 4.62 | 5.65 |
| I.D(mm) | 48.3 | 60.2 | 76 | 99.7 | 99.7 | 123.4 |
| I.D(inch) | 1.90 | 2.37 | 2.99 | 3.93 | 3.93 | 4.86 |
Applications
Our diamond drill bits are widely used in mineral exploration, oil and gas exploration, hydrogeological surveys, and environmental investigations. Whether drilling rock samples or conducting geological analysis, our drill bits offer precise and efficient solutions.
Product Features
High-Quality Materials: Our diamond drill bits are made from high-grade industrial diamonds, ensuring outstanding performance under various rock and geological conditions.
Superior Cutting Performance: With advanced manufacturing techniques and scientific design, our drill bits possess excellent cutting abilities, efficiently penetrating hard rock layers and improving work efficiency.
Strong Durability: Our drill bits undergo rigorous quality control, featuring excellent wear resistance and impact resistance, which leads to a longer lifespan and reduced replacement and maintenance costs.
Diverse Options: We offer a variety of specifications and models of diamond drill bits to meet the needs of different geological exploration projects. Whether dealing with soft soil layers or hard rock formations, we provide the right drill bit for your project.
Field work
Customers Visiting
Q1. Where is your factory?
Q2. How do you control quality?
A2: ISO9001 has been passed. Mill Test Certificate is supplied , meanwhile the Third Party Inspection is available according to customers' requirement.
Q3. What are the advantages of your company?
A3: We have many professionals, technical personnel, more competitive prices and best after-sales service than other companies.
Q4. Can you arrange the shipment?
A4: Yes, of course, we have our forwarders which has cooperated with us for years.
Q5. How about the delivery time?
A5: It will be decided by the orders. Normally within 3 days after receiving your advance payment if we have stock.
Q6. Can you provide sample?
A6: Small samples in store can be provided for free.
