Diamond Core Casing
Your Professional Diamond Core Casing Supplier
Our goal is to become your true partner in the field of core barrels in China. Guizhou Gold Drills Equipment Co., Ltd (GDRILLS) was established in China. The key management, sales team and professional technical engineers have been served in rock drilling industry for more than 20 years. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.
Why Choose Us
Our certificates
We have established a complete quality management system and passed ISO9001 quality management system certification and ISO14001 environmental protection management system certification.
Production market
Our products have been used in many large-scale mines and tunnel projects, and our business scope covers Africa, the Middle East, Central Asia, South America, Australia and other regions.
Our services
In the pre-sales stage, our team of experts will recommend the most suitable products according to the needs of customers and provide detailed technical consultation. During the sales period, we ensure timely delivery and provide installation guidance. For after-sales, we provide long-term technical support, warranty services and spare parts to help customers maximize the use of products and get reliable maintenance during use.
Advantages of Diamond Core Casing
Minimal mess
In comparison to alternative drilling methods, diamond drills cut through hard construction surfaces without leaving dust and debris all over the place. This saves making a mess and wasting precious time.
Maintain structural integrity
The idea of drilling into buildings creates fears of damaging structural integrity. However, diamond core drilling is one of the safest drilling forms, ensuring that structural integrity remains intact.
Precision
The depth of cutting can also be extremely varied – ranging from 10 to 1000 millimetres. If precise holes are required, a diamond core drill can be used to create duct openings, pipes, wiring holes, and holes for fasteners.
Versatility
Due to their portability and compact design, you are not limited in the locations and materials you can use to cut. The drill bits are also extremely resistant to damage, making them a perfect long-term investment.
Specification of Diamond Core Casing
|
Size |
Outer Diameter |
Inner Diameter |
||
|
Mm |
Inch |
Mm |
Inch |
|
|
44mm |
44.15 |
1.738 |
37.15 |
1.463 |
|
54mm |
54.15 |
2.132 |
47.15 |
1.856 |
|
64mm |
64.25 |
2.53 |
57.25 |
2.253 |
|
74mm |
74.25 |
2.923 |
67.25 |
2.648 |
|
84mm |
84.25 |
3.317 |
77.25 |
3.041 |
|
98mm |
98 |
3.858 |
88.3 |
3.476 |
|
113mm |
113 |
4.45 |
103.3 |
4.067 |
|
128mm |
128 |
5.039 |
118.3 |
4.658 |
|
143mm |
143 |
5.63 |
133.3 |
5.248 |
Features of Diamond Core Casing
High quality material applied: Metric core casing is made from high-grade alloy steel, providing exceptional tensile strength and durability. This ensures the casing can withstand high drilling pressures, impact, and wear in demanding geological conditions.
Precision threaded connections: Each casing section features precision-machined threads for secure and tight connections, reducing thread wear and ensuring smooth assembly and disassembly. This helps maintain a leak-free and highly stable borehole during drilling operations.
Compatibility with industry standards: The casing is designed to be fully compatible with industry-standard core drilling systems. It ensures seamless integration with drilling rigs, core barrels, and other down-hole tools used in mineral exploration, geotechnical, and environmental drilling.
Optimal core sample protection: By maintaining borehole integrity and minimizing contamination, the casing allows for accurate and undisturbed core sample retrieval. This is crucial in mineral exploration, where precise data on ore deposits is required.
Easy handling & efficient performance: Designed for quick installation and removal, the casing reduces downtime in drilling operations. Its lightweight yet rugged construction enhances overall drilling efficiency, making it ideal for deep hole drilling.
Enhanced structural integrity: The casing is manufactured with strict tolerance controls, ensuring straightness, egocentricity, and uniform wall thickness for consistent performance in high-precision drilling applications.
Metric diamond casing is a type of protective pipe used in core drilling to stabilize the borehole and ensure the safe retrieval of core samples. It follows metric sizing standards and is commonly used in mineral exploration, geotechnical investigations, and environmental drilling.
Metric core casing functions as a protective lining within the borehole, ensuring stability and preventing collapse during core drilling operations. As drilling progresses through soft, loose, or fractured formations, the casing is inserted to support the borehole walls, minimizing the risk of deformation or blockage.
Components of Diamond Core Casing
Drill bit
This specialized bit cuts through rock formations, creating the path for the casing. Its design and material selection are crucial for optimal performance and lifespan, ensuring durability and precise hole creation.
Hammer drill
Unlike conventional drilling, casing drilling utilizes a hammer drill to deliver powerful blows to the bit. This hammering action assists in breaking through tough formations that a standard rotary drill might struggle with.
Auxiliary tools
Various tools are vital in maximizing casing drilling efficiency beyond the core components. These May include circulation systems for removing drilled cuttings, downhole motors for generating additional rotation, and wellbore cleaning tools to maintain a clear path for casing advancement.
product key technologies
Premium Diamond Core Casing for Unstable Formations
Gdrills' high-tensile diamond core casing will secure your borehole and keep it from collapsing. Our casing pipes (BW, NW, HW, and PW) are made of high-quality cold-drawn seamless steel and are intended to give wireline drill strings the most internal clearance possible while retaining excellent exterior strength in overburden and cracked zones.
Engineered for Maximum Hole Stabilization
High-Grade Seamless Steel：Made from specialist alloy steel with a high yield strength to withstand pressure from the outside and stop pipes from deforming in deep excavations.
Precision WT & W Series Threads：Our threads are entirely compatible with worldwide standard casing systems because they are CNC machined to provide quick makeup, a leak-proof seal, and a high tensile capacity.
Flush Joint Design：Smooth outer and inner surfaces from optimized flush joint connections minimize installation friction and guarantee unobstructed drill bit passage.
Strict Straightness Standards：To guarantee zero deviation during casing advancement, each pipe is verified for straightness.
Packing and Shipping of Diamond Core Casing
|
Packing |
Cartonbox, plastic bag, wooden case. |
|
Shipping |
Shipped by road, sea, rail |
Complete Casing Solutions
We provide an extensive selection of casing accessories to optimize productivity on-site:
- Casing Shoes & Bits：Tungsten carbide or diamond-impregnated shoes for overcoming difficult obstacles.
- Casing Adapters：Easily attach your casing to various drill rig heads.
- Recovery Taps：Professional tools for retrieving lost casing strings in the hole.
Q: How long does a diamond core bit last?
A: All diamond core drills have a known average lifespan. On average, these drills can drill up to 100-250 holes before needing to be replaced.
Q: What is a diamond core bit used for?
A: Diamond core drilling is a popular geotechnical technique for creating openings and extracting core samples of materials. It can be done either routinely or for investigatory purposes. This method uses a rotary drill with a diamond encrusted drill bit attached in order to create precisely measured holes.
Q: Will a diamond core bit cut wood?
A: You could just as easily cut the glass as you could the wood. The point of a wood hole saw is that you can created a precise template that the diamond bit can work within.
Q: Do diamond bits wear out?
A: If the Core bit is not threaded on a clean surface, debris can become lodged between the thread causing the bit to rotate on an angle or at a different RPM. If you are cutting reinforced concrete, your core bit segments will get used up quickly.
Q: What size thread is a diamond core bit?
A: 1-1/2” and under (bit diameter)= 5/8”-11 thread. (5/8” diameter, 11 threads per inch) 1-5/8” and up (bit diameter) = 1-250”-7 thread. (1-1/4” diameter, 7 threads per inch).
Q: Can you use a diamond bit to cut glass?
A: Customers find the diamond drill bits work well, particularly on glass jars, and appreciate their value for money. The bits are easy to use and cut through various materials effectively, with one customer noting success with granite kitchen countertops.
Q: What is the difference between W and WT series casing?
A: The industry standard for general core drilling is the W series. For higher torque applications and deeper holes where casing retrieval is more difficult, the WT series has a more durable thread design.
Q: Are your casing pipes compatible with other brands?
A: Yes, Gdrills casing is interchangeable with standard B, N, H, and P wireline casing systems used by major global drilling contractors.
Q: Can you provide custom lengths?
A: While 1.5m and 3.0m are standard, we offer customized lengths (e.g., 0.5m, 1.0m) to help you manage casing height on the rig floor.