412F Air flush Core Barrel Inner Tube 1.5m or 3.0m
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412F Air flush Core Barrel Inner Tube 1.5m or 3.0m
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Features
Basic Infomation
Place of Origin: China
Brand Name: ROSCHEN
Certification: API
Model Number: 412F
High Light:

412F Air flush Core Barrel

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412F Air flush conventional Core Barrel

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Air flush Core Barrel

Payment & Shipping Terms
Packaging Details: wooden box
Delivery Time: 10~15 days
Supply Ability: 1000sets/M
Specifications
Product Name: 412F Air Flush Core Barrel
Application: Soft To Medium Hard Rock
Hole Diameter: 107.2mm
Core Diameter: 74.7mm
Product Description

412F Air flush Core Barrel for soft to medium hard rocks

 

Key to Main Parts of 412F Core Barrel Assembly

 

Complete core barrel consists of:

 

1. Core Barrel Head

2. Inner Tube 1.5m or 3.0m

3. Outer Tube 1.5m or 3.0m

4. Inner Tube Extension

5. Core Lifter

6. Core Lifter Case

 

The 412F Air flush Core Barrel advantage is it can be optimized for the use of air flush

Specification Core Barrel Type
412F
Hole Diameter (mm) 107.2
Core Diameter (mm) 74.7
Kerf / Crown Thickness (mm) 16.25
Cutting Area (cm2) 46.5
Hole Area (cm2) 90.3
Cutting Area as % of Hole Area 51.40%
Core Area (cm2) 43.8
Thread Connection in Head* HW
Recommended Casing PW
Conversion to triple tube possible

Yes

Cross-over sub required for drill rods not matching the thread connection in core barrel head

 

Applications and functions:

  1. 412F Air flush Core Barrel is often used for open-cast coal exploration and general geotechnical coring in situations where it is not desirable to use air as the flushing medium. It is designed for coring in soft to medium hard rocks using air as the flushing medium.

  2. What is essential for cooling the bit and uplifting rock cuttings from the borehole? The large annular space between the inner and outer tubes, in combination with face-discharge core bit designs, allows a large volume of air to reach the face of the bit.

  3. This core barrel has proved to be very effective when used with PCD core bits, giving a fast rate of penetration and good core recovery

Core Bit is not supplied as part of the core barrel assembly, but must be chosen correctly to match the particular application and rock formation.  

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Contact Person : Mr. Bill, George, Michael
Tel : 13764195009
Fax : 86-021-54380177
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