Product parameters:
| Cutting Dia. | Shell HIT.(A) | Shell OD.(B) |
Shell THK.(C) |
Fixed Bottom
THK.(D) |
Rotate
Bottom THK.(E) |
Teeth No. |
Weight |
| φ600 | 1200 | 520 | 16 | 40 | 40 | 4 | 640 |
| φ800 | 1200 | 720 | 16 | 40 | 50 | 4 | 900 |
| φ1000 | 1200 | 920 | 16 | 40 | 50 | 5 | 1100 |
| φ1200 | 1200 | 1120 | 16 | 40 | 50 | 7 | 1375 |
| φ1500 | 1200 | 1420 | 16 | 40 | 50 | 9 | 2000 |
| φ1800 | 1000 | 1720 | 20 | 50 | 50 | 12 | 2700 |
| φ2000 | 800 | 1920 | 20 | 50 | 50 | 14 | 3200 |
| φ2500 | 800 | 2420 | 20 | 50 | 50 | 19 | 4800 |
| φ3000 | 800 | 2920 | 20 | 50 | 50 | 24 | 7000 |
Characteristics:
Option half-automatic or manul mechanic bottom open system.
Built-in ventilation pipe;
Cast pilot with rock drilling bits , arc guide plate teeth
arrangement, double unlocking system;
Staggered arrangement of rock drilling bits;
Applicable layers: gravel , pebble , highly or medium weathered
rock;
Customizable Items :
1. Cutting DIA. Custom : design various cutting diameter based on
demand, like φ950,φ1050 etc.
2.Shell HIT. Custom : design as demand, prolong or shorten,
increase of efficiency by drilling more.
3.Key Component Reinforce Custom : strengthen the key component to
extend life cycle;
4.Cutter Custom: single cutter and double cutter design as demand;
5.Bottom Custom : single bottom and double bottom design as demand;
6.Kelly Box Custom : custom kelly box size based on the kelly bar,
like 130*130, 150*150,200*200 etc;
7.Bottom Open Mechanic : half-automatic or manual mechanic bottom
open system.
