Center Rock
HDD LP DRILL®
CENTER ROCK’s advanced HDD LP DRILL®, our HDD drill, provides a cost-effective solution for horizontal drilling from standard diameters measuring 12″-60″ (305-1524 mm), with custom built sizes available.
HDD LP DRILL Features and Benefits
CENTER ROCK’s new HDD LP DRILL has evolved after many years of success. The LP product line is very efficient in drilling the hardest rock formations around the world. Our tools are used in key industries like oil & gas, foundation, mine ventilation/dewatering, and mine rescue. We are exceptionally proud to introduce this product into the HDD market.
The HDD drill is powered by individual LP hammers packaged within the reamer canister. Each of these hammers is pneumatically powered by compressed air supplied through the drill pipe. Every hammer impacts its respective bit, which pulverizes the rock into small chips/cuttings. These cuttings are then forced back through the annular area between the pilot hole and drill pipe by the supplied air.
Size Range
12”- 60”
Hammer Count
3-12
Weight (lbs)
575 - 13165 lbs
Capable of pulling or pushing
Canister has built-in stabilization with the canister only 1″ (25 mm) under-cutting diameter and rollers 0.25″ (6 mm) under-cutting diameter
Side protection carbide inserts for extended wear
Capable of trailing casing with swivel
Low vibration, no shock sub required
Low torque and low air requirements
Size (IN) | Size (MM) | Number of Hammers | Hammer | Bit | Minimum Air Required (SCFM) | Minimum Air Required (M3/MIN) | Recommended Air Required (SCFM) | Recommended Air Required (M3/MIN) | Weight with the CALYX (LBS) | Weight with the CALYX (KG) |
|---|---|---|---|---|---|---|---|---|---|---|
12 x 4.75 | 305 x 120 | 3 | RF35 LP | 4.25 | 600 | 17 | 900 | 25 | 575 | 261 |
16 x 5.75 | 406 x 146 | 3 | RF50 LP | 5.75 | 900 | 25 | 1200 | 34 | 1395 | 633 |
18 x 6.75 | 457 x 171 | 3 | RF50 LP | 5.75 | 900 | 25 | 1200 | 34 | 1500 | 680 |
20 x 6.75 | 508 x 171 | 3 | RF60 LP | 7.875 | 1200 | 34 | 1500 | 42 | 2000 | 907 |
22 x 6.75 | 559 x 171 | 3 | RF60 LP | 7.875 | 1200 | 34 | 1500 | 42 | 2376 | 1078 |
24 x 8.75 | 610 x 222 | 3 | RF60 LP | 7.875 | 1200 | 34 | 1500 | 42 | 3400 | 1542 |
30 x 8.75 | 762 x 222 | 4 | RF60 LP | 7.875 | 1600 | 45 | 2000 | 56 | 4300 | 1950 |
33 x 10.00 | 838 x 254 | 5 | RF60 LP | 7.875 | 2000 | 56 | 2500 | 70 | 5147 | 2335 |
36 x 10.00 | 914 x 254 | 6 | RF60 LP | 7.875 | 2400 | 68 | 3000 | 85 | 5890 | 2672 |
48 x 12.00 | 1219 x 304 | 9 | RF60 LP | 7.875 | 3600 | 101 | 4500 | 127 | 9803 | 4447 |
60 x 12.00 | 1524 x 304 | 12 | RF60 LP | 7.875 | 4800 | 135 | 6000 | 170 | 13165 | 5972 |