LP Drills
The Center Rock Low Profile Drill features a group of individual 6” class low volume air hammers, each impacting a 7.875” self-rotating hammer bit. The L.P. Drill is designed for drilling soft to extremely hard rock formations. We custom fabricate each L.P. Drill to match the specifications of our customers. Sizes range from 20” up to 114” in diameter.
LP Full Face Drills |
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Size (inches) |
Number of Hammers |
Minimum Air Required (SCFM) |
Recommended Air Required (SCFM) |
20 |
3 |
960 |
1200 |
22 |
4 |
1280 |
1600 |
25 |
5 |
1600 |
2000 |
30 |
5 |
1600 |
2000 |
32 |
6 |
1920 |
2400 |
34 |
6 |
1920 |
2400 |
36 |
6 |
1920 |
2400 |
40 |
7 |
2240 |
2800 |
42 |
7 |
2240 |
2800 |
46 |
9 |
2880 |
3600 |
48 |
9 |
2880 |
3600 |
58 |
13 |
4160 |
5200 |
60 |
13 |
4160 |
5200 |
70 |
17 |
5440 |
6800 |
78 |
18 |
5760 |
7200 |
LP Hole Openers |
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66 x 42 |
10 |
3200 SCFM |
4000 SCFM |
84 x 48 |
12 |
3840 |
4800 |
90 x 58 |
15 |
4800 |
6000 |
96 x 60 |
16 |
5440 |
6800 |
114 x 90 |
14 |
5120 |
6400 |
Recommended Operating Pressure is 150 - 165 PSIG. |
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