Core barrel with double shell
Product feature and advantages
Inner shell drilling first, the outer follow, cutting ring with rock drilling bits rock;
Rock drilling bits perform stage breaking and drilling;
Small barrel facilitates the coring operation, large barrel performs stage breaking;
Applicable layers: Gravel, boulder, medium weathered rock;
|
Cutting diameter （mm） |
Outer shell height (mm) |
Inner shell height (mm) |
Inner shell outter diameter (mm) |
Shell thickness (mm) |
Teeth quantity |
Weight (kg) |
|
1000 |
1200 |
1500 |
520 |
16 |
17 |
1200 |
|
1200 |
1200 |
1500 |
620 |
16 |
20 |
1400 |
|
1500 |
1200 |
1500 |
720 |
16 |
24 |
1900 |
|
1600 |
1200 |
1500 |
820 |
16 |
27 |
2050 |
|
1800 |
1000 |
1300 |
920 |
20 |
29 |
2500 |
|
2000 |
800 |
1100 |
1020 |
20 |
33 |
2500 |
Cutting DIA. Custom : design various cutting diameter based on demand, like φ950、φ1050 etc.
Shell HIT. Custom : design as demand, prolong or shortten, increase of efficiency by drilling more.
Key Component Reinforce Custom : strengthen the key component to extend life cycle;
Kelly Box Custom : custom kelly box size based on the kelly bar, like 130*130, 150*150,200*200 etc;
Space between the shell Custom : custom the space between the double shell based on demand;
