ROSCHEN GROUP
| Supply Ability | 1000sets/M |
| Delivery Time | 10~15 days |
| Packaging Details | wooden box |
| product name | 412F Air flush core barrel |
| application | soft to medium hard rock |
| Hole Diameter | 107.2mm |
| Core Diameter | 74.7mm |
| Brand Name | ROSCHEN |
| Model Number | 412F |
| Certification | API |
| Place of Origin | China |
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Product Specification
| Supply Ability | 1000sets/M | Delivery Time | 10~15 days |
| Packaging Details | wooden box | product name | 412F Air flush core barrel |
| application | soft to medium hard rock | Hole Diameter | 107.2mm |
| Core Diameter | 74.7mm | Brand Name | ROSCHEN |
| Model Number | 412F | Certification | API |
| Place of Origin | China | ||
| High Light | 412F Air flush Core Barrel ，412F Air flush conventional Core Barrel ，Air flush Core Barrel | ||
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:
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.
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.
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.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Seller
Year Established:
1921
Total Annual:
5000-2000000
Employee Number:
100~500
Ecer Certification：
Verified Supplier
ROSCHEN GROUP ROSCHEN Group has the world class advanced equipment like 12000 tons forging, metal processing plant, heat treatment workshop, numerical control plant, Advanced five-axis machining center, etc. professional technical and skilled team to ensure mining, mine... ROSCHEN GROUP ROSCHEN Group has the world class advanced equipment like 12000 tons forging, metal processing plant, heat treatment workshop, numerical control plant, Advanced five-axis machining center, etc. professional technical and skilled team to ensure mining, mine...
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