412F Airflush Core Barrel
412F Airflush Core Barrel
412 Air Flush Core Barrel
The 412F airflush core barrel is designed for coring in soft to medium hard rocks using air as the flushing medium. It 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.
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 is essential for cooling the bit and uplifting rock cuttings from the borehole.
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
Advantages:
. Optimized for the use of air flush
| Technical Data | |
| 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 | |
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
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. Please refer to our Core Bits page for further details.
Keywords:
Core Barrels
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Longyear Core Barrel
Boart Longyear Core Barrel
Secoroc Core Barrel
Atlas Copco Core Barrel
Wireline Core Barrel
AQTK Core Barrel
BQ Core Barrel
NQ Core Barrel
HQ Core Barrel
PQ Core Barrel
NMLC Core Barrel
HMLC Core Barrel
NWG Core Barrel
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AQWL Core Barrel
BQWL Core Barrel
NQWL Core Barrel
HQWL Core Barrel
PQWL Core Barrel
SQWL Core Barrel
Double Tube Core Barrel
Metric Core Barrel
T2-66 Core Barrel
T2-76 Core Barrel
T2-86 Core Barrel
T2-101 Core Barrel
T6-76 Core Barrel
T6-86 Core Barrel
T6-101 Core Barrel
T6-116 Core Barrel
T6-146 Core Barrel
WT SERIES CORE BARRELS:
BWT SERIES CORE BARRELS
NWT SERIES CORE BARRELS
HWT SERIES CORE BARRELS
PWT SERIES CORE BARRELS
WM SERIES CORE BARRELS:
AXM/AWM SERIES CORE BARRELS
AXM SERIES CORE BARRELS
AWM SERIES CORE BARRELS
BWM SERIES CORE BARRELS
NWM SERIES CORE BARRELS
HWM SERIES CORE BARRELS
WG SERIES CORE BARRELS:
BWG SERIES CORE BARRELS
NWG SERIES CORE BARRELS
HWG SERIES CORE BARRELS
WF SERIES CORE BARRELS:
NWF SERIES CORE BARRELS
HWF SERIES CORE BARRELS
BWL Core Barrel
NWL Core Barrel
HWL Core Barrel
PWL Core Barrel
core barrels for mining exlopration and geological drilling
Triefus Triple Tube Core barrels
CONVENTIONAL DOUBLE TUBE CORE BARRELS
TT Series Core Barrels
T2 Series Core Barrels
T6 Series Core Barrels
T6 Series Core Barrels
WF / WG Series Core Barrels
CONVENTIONAL TRIPLE TUBE CORE BARRELS
WIRELINE DOUBLE TUBE CORE BARRELS “W/L”
WIRELINE TRIPLE TUBE CORE BARRELS “W/L3”
For more information, please contact:
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
Skype: ROSCHEN.TOOL , ROSCHEN_GROUP
WeChat: +86-137 6419 5009 ; +86-135 8585 5390
WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390
Email: roschen@roschen.com ; roschen@roschen.net
Website: http://www.roschen.com ; http://www.roschen.net
http://www.roschen.cn ; http://www.roschendrill.com
http://www.roschenmining.com ; http://www.roschendrilling.com
