Detail
| Diameter(mm) | Shell Height(mm) | Upper Shell Thickness(mm) | Bottom Shell Thickness(mm) | Cutting Teeth No. | Weight(KG) |
| 600 | 1300 | 20 | 40 | 9 | 530 |
| 800 | 1300 | 20 | 40 | 14 | 800 |
| 900 | 1300 | 20 | 40 | 16 | 920 |
| 1000 | 1300 | 20 | 40 | 18 | 1000 |
| 1100 | 1300 | 20 | 40 | 18 | 1100 |
| 1200 | 1300 | 20 | 40 | 20 | 1220 |
| 1250 | 1300 | 20 | 40 | 21 | 1270 |
| 1300 | 1300 | 20 | 40 | 24 | 1330 |
| 1400 | 1300 | 20 | 40 | 24 | 1425 |
| 1500 | 1300 | 20 | 40 | 28 | 1560 |
| 1600 | 1300 | 20 | 40 | 28 | 1720 |
| 1800 | 1300 | 25 | 40 | 33 | 1820 |
| 2000 | 800 | 25 | 40 | 36 | 1930 |
| 2200 | 800 | 25 | 40 | 40 | 2100 |
| 2500 | 800 | 25 | 40 | 44 | 2400 |
| Kelly Box Options: 150*150,200*200,250*250 | |||||
Features
-Cutting ring with rock drilling bits and releases the internal stress of rock.
-Drilling with the method of rolling and squeezing can increases the anti- wear ability of thebarre.
-Small barrel facilitates the coring operation; large barrel performs stage breaking.
-Applicable layers: medium or slightly weathered rock , hard or super hard bedrock.
Remark:
-Cutting DIA. Custom : design various cutting diameter based on demand.
-Shell HIT. Custom : design as demand, prolong or shorten, increase amount of perdrilling, improve efficiency.
-Kelly box size custom based on kelly bar, like 130*130,150*150,200*200,250*250 etc.
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