Core Tube / Core Tube Coupling

Core Parameters

• Product Name: Core Barrel Tubes & Matching Couplings

  Material: DZ40 / DZ50 / R780 / N80 (High-quality alloy steel compliant with national geological exploration standards)

  Size: Outer Diameter × Wall Thickness × Length (Customizable; standard specifications available)

  Connection Type: Threaded Connection / Flange Connection (Can be customized according to project requirements)

  Product Features: High strength, corrosion resistance, high precision, excellent toughness, high core recovery rate, suitable for harsh working environments

  Applications: Geological exploration, mining drilling, water well drilling, coal exploration, engineering and construction exploration

  Packaging: Steel bundles or wooden cases (Export-standard packaging; fumigation service available)

  Minimum Order Quantity (MOQ): 10 pieces

  Delivery Time: 7–15 days (In-stock products: 3–7 days)

  Payment Terms: T/T (Telegraphic Transfer) / L/C (Letter of Credit) (Negotiable)

  
• Our core barrels and core barrel couplings are specially designed for geological exploration, shallow-hole drilling, and deep-hole drilling applications. Manufactured with seamless precision technology, the products feature smooth inner walls and accurate dimensions, ensuring compatibility with various exploration drilling rigs. They effectively improve the core recovery rate (≥98%) while reducing core damage during drilling operations, providing reliable support for geological data collection.

  Widely used in geological surveys, mining exploration, hydrological investigation, and related drilling projects, our products also support non-standard customization to meet the drilling requirements of different geological formations and working conditions.

  

Customized Service

We provide full-parameter customization services based on your specific drilling and construction requirements. The material, outer diameter, wall thickness, length, and thread specifications of the core barrels can all be customized to suit special drilling rigs and complex geological formations, including fractured rock and hard rock conditions.

Our professional technical team offers customized solution consultation to ensure the products fully match your project requirements. More competitive pricing is available for bulk customization orders.

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Specifications

Key Advantages

Seamless Precision Manufacturing:
Made from high-quality alloy steel (DZ40 / DZ50 / R780 / N80), our core barrels undergo strict heat treatment and seamless forming processes. The smooth, burr-free inner wall helps prevent core damage during drilling and improves core integrity. The tube structure is specially designed for efficient core recovery, reducing core loss and breakage.

Accurate & Customizable Dimensions:
Standard specifications are available in stock for fast delivery, ensuring uninterrupted project operations. Outer diameter, wall thickness, length, and thread specifications can all be customized according to project requirements. Precision-machined threads ensure compatibility with various exploration drilling rigs and provide easy installation and secure connections.

Wide Range of Applications:
Suitable for geological exploration, underground coal mining operations, deep-hole drilling, and other drilling projects. The products offer excellent wear resistance and corrosion resistance, making them ideal for humid environments and complex geological conditions.

International Standard Quality:
From raw material selection and manufacturing to final inspection, every production process follows international exploration equipment standards. This ensures our products meet the construction specifications and quality requirements of customers worldwide.

Applications

Widely used in geological exploration, mining operations, hydrogeological surveys, engineering surveying, and coal drilling. Our products are compatible with various types of exploration drilling rigs and can be applied in both surface and underground drilling projects. They serve as essential components for improving core recovery efficiency and ensuring smooth project progress.

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