2021 Good Quality Dirt Auger
2021 Good Quality Dirt Auger - Core Barrel with Bullet Teeth or Roller Bits – FESDetail:
Cutting Dia. (mm) | Shell Dia. (mm) | Shell Length (mm) | Tool Box Size | Shell Thickness(mm) |
600 | 520 | 1200 |
Optional | 16+30 |
700 | 620 | 1200 | 16+30 | |
800 | 720 | 1200 | 16+30 | |
900 | 820 | 1200 | 16+30 | |
1000 | 920 | 1200 | 16+30 | |
1200 | 1120 | 1200 | 16+30 | |
1300 | 1220 | 1200 | 16+30 | |
1500 | 1420 | 1200 | 16+30 | |
1800 | 1720 | 1000 | 20+40 | |
2000 | 1920 | 800 | 20+40 | |
2200 | 2120 | 800 | 20+40 | |
2500 | 2420 | 800 | 20+40 |
Note: The above sizes are for reference, any smaller or larger OD as per request.
It is optional to have cross cutter with bullet teeth, or core barrel with double shell.
- (1) Core barrel with bullet teeth is used for cutting an annular ring in rock or concrete (also reinforced concrete). It is mainly applied for grave, boulder and medium mantle rock.
- (2) Core barrel with roller bits is used in very strong rock formations (compressive strength >100Mpa). It is mainly applied in layers with rocks haedness above 40Mpa sandstone, rock and granite.
- (3) Cross-cutter core barrel is mainly used to break rock cores that remain in the borehole after using a core barrel, also suitable for drilling hard, jointed rock (<100Mpa) and for penetrating through layers containing boulders.
The Large Drilling Diameter Core Barrel
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