Diamond Core Barrel Inner Tube
Model NO.: HWF, PWF, SWF, ZWF, UWF
HS Code: 84314320
The diamond core barrel inner tube is an essential component in drilling operations, especially for core sampling. Core barrels are available in three main types: single tube, double tube, and triple tube. Each type is designed to suit different drilling conditions and rock formations.
**Double Tube Core Barrels**
- **TT Series Core Barrel**: These ultra-thin walled double tube core barrels come in diameters of 46mm and 56mm. Their very thin cutting face allows for a high rate of penetration through hard formations, making them ideal for underground mining applications.
- **T2 Series Double Tube Core Barrels**: Designed for surface exploration, particularly in mining, these barrels feature a thin kerf that enables rapid penetration. They are available in sizes ranging from 46mm to 101mm.
- **T6 Series Double Tube Core Barrels**: A more robust version of the T2 series, these barrels are available in larger diameters (76mm to 146mm) and are used in surface mining and geotechnical drilling.
- **LTK 48 & LTK 60 Double Tube Core Barrels**: Slightly thinner than the T2 series, these barrels offer cost-effective and high-production performance, suitable for medium to extra-hard rock formations. Available in 48mm and 60mm sizes.
- **WF Series Double Tube Core Barrels**: Designed for soft formations using face-discharge bits, these barrels have a simpler construction and are more resistant to damage, though they have a slower penetration rate.
- **WG Series Double Tube Core Barrels**: These include single tube core barrels, available in DCDMA sizes E, A, B, N, and H.
- **TBW and TNW Core Barrels**: Similar to the T2 series but with DCDMA hole sizes B and N, these are used for surface exploration, especially in mining. Their thin kerf design allows for faster penetration.
- **Wireline Double Tube Core Barrels**: Used primarily in deep coring, these barrels eliminate the need to couple and uncouple the rod string during core retrieval thanks to an overshot device. Available in DCDMA sizes A, B, N, H, and P.
- **Chinese Standard Double Tube Core Barrels**: Conforming to Chinese standards, these barrels are widely used in various drilling applications.
- **Chinese Standard Wireline Double Tube Core Barrels**: A wireline version of the standard double tube core barrels, suitable for deep and complex drilling environments.
- **Jet-type Reverse Circulation Double Tube Core Barrels**: Designed for reverse circulation drilling, these barrels help in efficient core recovery and sample preservation.
**Triple Tube Core Barrels**
- **MLC (Triefus) Series Core Barrels**: These triple tube core barrels are ideal for geotechnical purposes, designed to maximize core recovery in soft formations. Available in diameters ranging from 35mm to 146mm.
- **Wireline Triple Tube Core Barrels**: Used in broken or fractured formations, these barrels incorporate a third split inner tube on the base of a wireline double tube core barrel. This allows the core to be examined in its original state after retrieval.
Here’s a quick reference table:
| Wireline Core Barrel | Double Tube Core Barrel |
|----------------------|-------------------------|
| Single Tube Core Barrel | Triple Tube Core Barrel |
Whether you're working in underground mining, surface exploration, or geotechnical drilling, there's a core barrel system tailored to your needs. From ultra-thin wall TT series to durable triple tube models, each design ensures optimal performance and core recovery in various geological conditions.
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