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HDD LP DRILL®

CENTER ROCK inc.® LP DRILLS

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.

How HDD LP DRILLs Work

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.

HDD LP DRILL Features and Benefits

  • 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

HDD Mono-Hammer Features and Benefits

  • Slant face bit from 4.75” to 12” (120.5–305 mm)
  • Bent sub and sonde housing available
  • Accepts all sondes, 15” & 19” (381-482.6 mm) and Ditch Witch® transmitters
  • Greater airflow through housing for optimal hammer performance
  • Excellent steering in all types of rock and clay
  • Wire-line adaptable
  • Easily adaptable to all HDD drill rigs
  • Smaller compressor requirements (job dependent)
  • Reduced operating cost; no drilling fluid recycling needed
  • Typically, only one GPM of drilling fluid is for operation
  • Tested and proven to operate in sands and cobbles with proper drilling fluid
  • Rate of penetration (ROP) is faster than conventional methods

HDD LP DRILL Specifications

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

Let’s Talk

Contact CENTER ROCK today to learn more about the HDD LP DRILLs for your project needs.