ISO Diamond Core Drilling Bits for Geological Exploration Core Drilling
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ISO Diamond Core Drilling Bits for Geological Exploration Core Drilling
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Basic Infomation
Place of Origin: USA
Brand Name: ROSCHEN
Certification: ISO
Model Number: BQ NQ HQ PQ
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Diamond Core Drilling Bits

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Diamond Core Drill Bits For Rock

Payment & Shipping Terms
Specifications
Type: Diamond Core Drilling
Name: Diamond Core Drill Bits
Use: Geological Drilling
Usage: Exploration Core Drilling
Style: Wireline Core Drilling
Drills: Wireline Core Drilling
Model: Impregnated Diamond Core Bits
Series: Wireline Diamond Core Bits
Drilling: Exploration Core Drilling
Mining: Australia Mining
Exploration: Australia Exploration
Model No: Mining Exploration Core Drilling
Applications: Copper Mining Drilling
Product Description

diamond core drilling bits for geological exploration Core Drilling

Diamond Core Drilling Bits for Geological Exploration Core Drilling


 

Exploration diamond drilling is used in the mining industry to probe the contents of known ore deposits and potential sites. By withdrawing a small diameter core of rock from the orebody, geologists can analyse the core by chemical assay and conduct petrologic, structural and mineralogical studies of the rock.



Diamond drilling
 

Exploration diamond drilling differs from other geological drilling in that a solid core is extracted from depth, for examination on the surface. The key technology of the diamond drill is the actual diamond bit itself. It is composed of industrial diamonds set into a soft metallic matrix. As shown in the figure, the diamonds are scattered throughout the matrix, and the action relies on the matrix to slowly wear during the drilling, so as to expose more diamonds. The bit is mounted onto a drill stem, which is connected to a rotary drill. Water is injected into the drill pipe, so as to wash out the rock cuttings produced by the bit and also to reduce the heat produced due to friction which causes less wear and tear of the bits. An actual diamond bit is a complex affair, usually designed for a specific rock type, with many channels for washing.
 

The drill uses a diamond encrusted drill bit (pictured on the right) to drill through the rock. The drill produces a "core" which is photographed and split longitudinally. Half of the split core is assayed while the other half is permanently stored for future use and re-assaying if necessary. Although a larger diameter core is the most preferred it is the most expensive. The most common diameter sizes of core are NQ and CHD 76.


Early exploration companies tended to choose drilling contractors who typically charge per meter rates and/or day rate depending on difficulty of project. For example, Energold Drilling would provide diamond drilling services for projects with limited infrastructure and focus on portability, whereas larger drilling groups such as Boart Longyear tended to work on established producing mine sites.

 


Specifications: 

 

 

STANDARD SET DIMENSIONS FOR DIAMOND CORE BITS AND REAMING SHELLS
Core Barrel Designation Core Bit Core Bit Reaming Shell
Outside Set Diameter Inside Set Diameter Set Diameter
Maximum Minimum Maximum Minimum Maximum Minimum
Inches mm Inches mm Inches mm Inches mm Inches mm Inches mm
EWT(EXT) 1.475 37.46 1.465 37.21 0.91 23.11 0.9 22.86 1.49 37.85 1.48 37.59
IEWS 1.475 37.46 1.465 37.21 1 25.4 0.99 25.15 1.49 37.85 1.48 37.59
EWG 1.475 37.46 1.465 37.21 0.85 21.59 0.84 21.34 1.49 37.85 1.48 37.592
AQ 1.88 47.75 1.87 47.5 1.067 27.1 1.057 26.85 1.895 48.13 1.885 47.88
AQIK 1.88 47.75 1.87 47.5 1.206 30.63 1.196 30.38 1.895 48.13 1.885 47.88
ATW(ADB-GM) 1.88 47.75 1.87 47.5 1.198 30.43 1.188 30.18 1.895 48.13 1.885 47.88
AWT(AXT) 1.88 47.75 1.87 47.5 1.286 32.66 1.276 32.41 1.895 48.13 1.885 47.88
ATK34(AW34) 1.88 47.75 1.87 47.5 1.325 33.66 1.315 33.4 1.895 48.13 1.885 47.88
AXC(AWC3) 1.895 48.13 1.855 47.88 1.067 27.1 1.057 26.85 1.895 48.13 1.885 47.88
JTK48/LTK48 1.88 47.75 1.87 47.5 1.394 35.41 1.384 35.15 1.895 48.13 1.885 47.88
BQ 2.35 59.69 2.34 59.44 1.438 36.53 1.428 36.27 2.365 60.07 2.355 59.82
BQ3 2.35 59.69 2.34 59.44 1.325 33.65 1.315 33.4 2.365 60.07 2.355 59.82
BQTK 2.35 59.69 2.34 59.44 1.606 40.79 1.596 40.54 2.365 60.07 2.355 59.82
BXB(BWC3) 2.365 60.07 2.355 59.82 1.438 36.53 1.428 36.27 2.365 60.07 2.355 59.82
BWG(BX) 2.35 59.69 2.34 59.44 1.659 42.14 1.649 41.88 2.365 60.07 2.355 59.82
NQ 2.97 75,44 2.96 75.18 1.88 47.75 1.87 47.5 2.985 75.82 2.975 75.57
NQ2 2.97 75.44 2.96 75.18 2 50.8 1.99 50.65 2.985 75.82 2.975 75.57
NQ3/NQTT 2.97 75.44 2.96 75.18 1.78 45.21 1.77 44.96 2.985 75.82 2.975 75.57
NWG(NX) 2.97 75.44 2.96 75.18 2.16 54.86 2.15 54.61 2.985 75.82 2.975 75.57
NMLC 2.97 75.44 2.96 75.18 2.052 52.12 2.042 51.87 2.985 75.82 2.975 75.57
HQ 3.77 95.76 3.755 95.38 2.505 63.63 2.495 63.38 3.79 96.27 3.775 95.89
HQ3/HQTT 3.77 95.76 3.755 95.38 2.411 61.24 2.401 60.99 3.79 96.27 3.775 95.89
PQ 4.815 122.3 4.795 121.8 3.35 85.09 3.34 84.84 4.835 120.81 4.82 122.43
PQ3 4.815 122.3 4.795 121.8 3.275 83.19 3.265 82.93 4.835 122.81 4.82 122.43
TT46/LTK46 1.816 46.12 1.806 45.87 1.394 35.41 1.384 35.15 1.828 46.42 1.818 46.17
T2-46 1.816 46.12 1.806 45.87 1.253 31.82 1.243 31.56 1.828 46.42 1.818 46.17
T2-56 2.21 56.12 2.2 55.87 1.647 41.82 1.637 41.56 2.222 56.42 2.212 56.17
T2-66 2.603 66.12 2.593 65.87 2.04 51.82 2.03 51.56 2.615 66.42 2.605 66.17
T2-76 2.997 76.12 2.987 75.87 2.434 61.82 2.424 61.56 3.009 76.42 2.999 76.17
T2-86 3.391 86.12 3.381 85.87 2.828 71.82 2.818 71.56 3.403 86.42 3.393 86.17
T2-101 3.982 101.14 3.97 100.84 3.3 83.82 3.29 83.56 3.994 101.44 3.984 101.19
T6-86 3.391 86.12 3.381 85.87 2.643 67.13 2.633 66.88 3.406 86.51 3.394 86.21
T6-H 3.897 98.98 3.882 98.6 3.115 79.13 3.105 76.88 3.912 99.36 3.902 99.11
T6-101 3.982 101.14 3.97 100.84 3.115 79.13 3.105 78.88 3.996 101.51 3.984 101.21
T6-116 4.575 116.18 4.56 115.8 3.667 93.13 3.657 92.88 4.59 116.59 4.575 116.21
T6-131 5.165 131.18 5.15 130.8 4.257 108.13 4.247 107.88 5.18 131.59 5.165 131.21
T6-146 5.755 146.18 5.74 145.8 4.847 123.13 4.837 122.88 5.772 146.61 5.757 146

 

 

 

 

FAQ

 

 

 

 



Q: Are you a manufacturer or trading company?
A: We are a specialized manufacturer.

 

Q: What are your main products, and used for?
A: Our products include core bit, PDC bit, reaming shell, core barrel, casing, drill rod, SPT equipment, Shelby sampler, drill rig and other drilling parts.
They are used for mineral exploration, geological drilling, geotechnical engineering and soil sampling.


Q: How about the delivery terms?
1. Payment: T/T, L/C, Western Union, Paypal, 30% deposit in advance and rest before delivery.
2. Min. order quantity: 1 piece.
3. Transportation: By DHL/TNT/Fedex express, air, sea, train.


Q: How about discount?
A: Price is based on products and order quantity.


Q: Do you accept sample order?
A: Yes sure, please contact us for details.


Q: How about your after-sales service?
A: As a manufacturer, we offer promt technology support for all problems and questions. Besides, we accept goods return or replace for quality problem.


Q: How does your company control the quality?
A: Quality first. In order to guarantee high quality for our products, Roschen always makes a serious inspection for all products and raw materials in strict procedure. We have obtained certificate of ISO9001:2000 in 2004.



 


For more information please contact:



 

ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED

 

Skype: ROSCHEN.TOOL , ROSCHEN_GROUP
 

WeChat: +86-137 6419 5009 ; +86-135 8585 5390
 

WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390
 

Email: roschen@roschen.com ; roschen@roschen.net
 

Website: http://www.roschen.net ; http://www.roschen.cn

http://www.roschen.com ; http://www.roschengroup.com

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