Hot-Pressed Diamond Core Bit for Geological Exploration
Models: BQ / NQ / NQ3 / HQ / HQ3 / PQ / PQ3 / NTW / HTW
Application: Geological Exploration / Rock Sampling / Deep Core Drilling
Formation: Soft / Medium / Hard Rock
Connection: Internal Thread
Customization: Matrix Grade / Size / Crown Design
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Description
Hot-Pressed Diamond Core Bit for Geological Exploration
Hot-Pressed Diamond Core Bits are developed for geological exploration, mineral exploration, deep core drilling and rock sampling applications. The hot-pressed diamond matrix combines diamond particles with a wear-resistant metal matrix, allowing the bit to maintain stable cutting performance during continuous core drilling.
Different matrix hardness grades can be selected according to rock hardness, abrasiveness and fracture conditions, helping improve drilling efficiency and bit life.
Models BQ / NQ / NQ3 / HQ / HQ3 / PQ / PQ3 / NTW / HTW | Connection Internal Thread | Matrix Hardness Low / Medium / High |
Crown Design Standard / Bottom-Discharge | Application Geological Exploration / Rock Sampling / Deep Core Drilling | Formation Soft / Medium / Hard Rock |
Engineered for stable cutting and reliable core recovery
Six design advantages behind the Hot-Pressed Diamond Core Bit.
01 / 06 Hot-Pressed Diamond MatrixHigh-quality diamond particles are bonded into a wear-resistant matrix for stable cutting and long service life. | 02 / 06 Multiple Matrix Hardness GradesLow, medium and high matrix hardness options can be selected according to formation abrasiveness and rock strength. | 03 / 06 Wide Size RangeAvailable in BQ, NQ, HQ, PQ, NTW, HTW and related core drilling standards. |
04 / 06 Reliable Core RecoveryOptimized crown structure supports stable core recovery during geological exploration and deep drilling. | 05 / 06 Bottom-Discharge OptionSuitable for loose, sandy and fractured formations where conventional core recovery is difficult. | 06 / 06 Custom ManufacturingMatrix hardness, crown design and size can be customized according to drilling conditions. |
Used across exploration, deep drilling and sampling projects
This hot-pressed diamond core bit is suitable for geological exploration, deep core drilling and rock sampling. Other applications include mineral exploration, engineering geological investigation and hydrological investigation.
Applications
Suitable Rock FormationsSuitable for soft, medium and hard formations, depending on matrix hardness and crown design.
⚠️ Note: Actual drilling performance depends on rock abrasiveness, fractures, drilling parameters, matrix grade and operating conditions. | |||||||||||||||||
Bottom-Discharge Design for difficult formations
Bottom-discharge hot-pressed diamond core bits are available for loose, sandy or fractured formations where core recovery is difficult.
Standard Crown Standard DesignSuitable for competent formations where conventional core recovery is reliable and stable cutting performance is required. | Bottom-Discharge Bottom-Discharge DesignThis design helps improve fluid circulation around the crown and reduces disturbance to fragile core samples in loose, sandy or fractured formations. |
Choose the matrix grade for your formation
The matrix hardness should be selected according to rock hardness and abrasiveness.
Soft Matrix For Hard, Less Abrasive RockSuitable for hard and less abrasive formations where faster diamond exposure is required. | Medium Matrix For General-Purpose DrillingSuitable for general-purpose drilling conditions and mixed formations. | Hard Matrix For Soft, Abrasive RockSuitable for softer or more abrasive formations where slower matrix wear is required. |
Standard models and dimensions
Available in BQ, NQ, HQ, PQ, NTW and HTW series. Bottom-discharge versions are available for selected models.
Standard specifications and customization
Contact our engineers for a specific configuration based on your core drilling project.
How to select the right hot-pressed diamond core bit
To recommend a suitable configuration, please provide the following information. Our engineers will respond with a factory quotation within 24 hours.
01 Core Drilling System BQ / NQ / HQ / PQ / NTW / HTW | 02 Rock Formation For example: limestone, granite, shale, sandstone or fractured rock. | 03 Hardness & Abrasiveness Formation hardness and abrasiveness level. |
04 Required Core Diameter Required core diameter and tolerance. | 05 Crown Design Standard or bottom-discharge crown design. | 06 Drilling Depth & Equipment Planned drilling depth and drilling equipment details. |
OEM & ODM customization for core drilling projects
Every core drilling project is different. Chenghui Drilling customizes each bit based on your project data — from matrix grade to crown design.
Rock formation, drilling rig, core barrel and drilling parameters all affect drill bit performance. Our engineering team works with your technical data to recommend the most suitable matrix hardness and crown design.
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Professional drilling tools manufacturer in China
Chenghui Drilling Co., Ltd. specializes in the design, production and supply of PDC drill bits, tricone drill bits, DTH drilling tools and related drilling equipment for customers worldwide. Every drill bit is manufactured and inspected in our own factory, ensuring stable quality, competitive pricing and reliable delivery for international drilling contractors and distributors.
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Need a customized Hot-Pressed Diamond Core Bit?
Share your drilling requirements with our engineers. We will recommend a suitable matrix hardness and crown design, and provide a factory quotation within 24 hours.
| 1. Core Drilling System | 2. Rock Formation |
| 3. Required Core Diameter | 4. Crown Design Preference |
FAQ
Downloads
| File | Download |
|---|---|
| CNC-Machining-Center.pdf | Download |
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