LF™ 230 Surface Coring Drill
Power
The LF™ 230 deep hole drill provides the features and the power required to get just about any job done, easily and efficiently.
A 40,000 lb hoist allows for rig depth capacity beyond its class. The PQ™ Nitro-Chuck™ is field tested and designed to offer performance and reliability to conquer even the hardest projects.
Mobility
The LF™ 230 is contained to a small footprint, optimized for easy transport. Engineered for mobility, the LF™230 surface coring drill features a telescoping mast with dump capability. The telescoping features afford a compact size during transport while the dump capability lowers the working height of the machine to enable mounting on a truck or scow.
Reliability
The open-fenced mast features a common center line through the chuck and feed cylinders, decreasing wear on components. Simple hydraulics and structural design makes this drill easy to operate and maintain.
Technical Information
Drilling Depth Guidelines |
||||
|
Dry Hole |
Fluid Filled |
||
Drill Rod / Core Barrel |
Hole Depth Meters |
Hole Depth U.S. |
Hole Depth Meters |
Hole Depth U.S. |
BRQ™ / BQ™ |
3024 |
9921 |
3462 |
11358 |
BRQ™TK / BQ™TK |
3806 |
12488 |
4360 |
14306 |
NRQ™ / NQ™ / NQ™2 |
2326 |
7632 |
2661 |
8730 |
NRQ™ V-Wall™ |
2630 |
8627 |
2983 |
9788 |
HRQ™ / HQ™ |
1578 |
5176 |
1806 |
5925 |
HRQ™ V-Wall™ |
1987 |
6518 |
2246 |
7368 |
PHD / PQ™ |
1043 |
3421 |
1190 |
3904 |
PHD V-Wall™ |
1421 |
4663 |
1592 |
5223 |
The figures in these tables have been calculated, based on field experiences, and may be reasonably expected. Ratings are based on a vertical, straight, clean down hole using a 18 258 kg (40,000 lb) hoist (single line pull). Actual drilling capacity will depend on in-hole tools, conditions, drilling techniques and equipment used. | ||||
*BQ capacity shown for comparison purposes only. It is not recommended drilling practice to drill over 2,000 m BQ depth. Always verify manufacturers rod depth ratings prior to use. |
Prime Mover |
||
|
Metric |
U.S. |
Standard Unit |
Cummins QSC 8.3 L, Liquid cooled, turbo charged, charge air cooled engine |
|
Displacement |
8.3 L |
506 in³ |
Power (maximum) at 2,200 RPM |
205 KW |
275 hp |
Emissions |
Stage™ III |
Tier 3 |
Torque and RPM Ratings |
|||
Metric |
U.S. |
||
(Hydraulic motor at maximum/minimum displacement, prime mover at 2,200 RPM) |
|||
Speed (no load) |
Torque (stall) |
||
RPM |
Nm |
lb ft |
|
1st gear |
144 – 199 |
5322 – 3826 |
3925 – 2822 |
2nd gear |
288 – 400 |
2648 – 1898 |
1953 – 1400 |
3rd gear |
514 – 714 |
1486 – 1068 |
1096 – 788 |
4th gear |
900 – 1250 |
849 – 610 |
626 – 450 |
Note: Head output speed and torque are infinitely variable in each gear range as indicated. | |||
Actual rotation speed is affected by engine RPM and hydraulic motor displacement settings. |
Hydraulic System |
||
|
Metric |
U.S. |
Primary Pump |
Axial piston, variable displacement, load sensing, pressure compensated with low pressure standby. |
|
Max flow |
318 L/m |
84 gpm |
Maximum Pressure (factory setting) |
31 MPa |
4500 psi |
Secondary Pump |
Axial piston, variable displacement, load sensing, pressure compensated with low pressure standby. |
|
Max flow |
72 L/m |
19 gpm |
Maximum Pressure (factory setting) |
21 MPa |
3000 psi |
Auxiliary Pump |
Axial piston, variable displacement, pressure compensated. |
|
Max flow |
42 L/min |
11 gpm |
Maximum Pressure (factory setting) |
14 MPa |
2000 psi |
Hydraulic Tank Capacity |
435 L |
115 gal |
Drill Head |
||
Metric |
U.S. |
|
Rotation Motor | Resroth Hydraulic motor – variable / reversible | |
Ratios | 1st | 6.27:1 |
2nd | 3.12:1 | |
3rd | 1.75:1 | |
4th | 1.00:1 | |
Final Drive | Straight cut gears | |
Ratio | 2:1 | |
Head Opener | Pivoting style – hydraulically actuated | |
Hydraulic PQ™ Chuck | Patented Nitro-Chuck™ Hydraulically opened, nitrogen gas spring closed Axial holding capacity of 222 400 N (50,000 lbf) |
|
Drill Head Lubrication | Force fed bearings, oil bath for gears, external pump | |
Drill Head Lubricating Oil Filtration | 25 micron suction oil filter |
Drill Mast and Feed System |
||
|
Metric |
U.S. |
Feed Stroke | 3.35 m | 11 ft |
Feed pull | 223 300 N | 50200 lbf |
Feed Thrust | 117 877 N | 26500 lbf |
Rod Pull | 6 or 9 m | 20 or 30 ft |
Drilling Angle | 45° off horizontal to 90° vertical down | |
Mast Dump (crowd) | 2.74 m | 9 ft |
Mast Telescope | 2.87 m | 9.42 ft |
Draw Works |
||
Metric |
U.S. |
|
Main line winch | Two speed motor | |
Hook load (single part line) | ||
Bare Drum |
18144 kg | 40000 lb |
Hoisting speed (single part line) | ||
Bare Drum |
72 m/min and 40 m/min | 236 ft/min and 131 ft/min |
Main line winch cable dia. | 22 mm | 7/8 in |
Minimum breaking strength | 51891 kg | 114400 lb |
Note: Do not use multiple part lines with the main line hoist, use single part line ONLY. | ||
Foot clamp capacity | HWT | |
Wireline Hoist | ||
Level wind | Chain driven – dual ratio | |
Line Pull | ||
Bare Drum |
907 kg | 2000 lb |
Full Drum |
510 kg | 1125 lb |
Line Speed | ||
Bare Drum |
160 m/min | 525 ft/min |
Full Drum |
284 m/min | 932 ft/min |
Drum Capacity | 3300 m | 10827 ft |
Note: Wireless cable length to be specified at time of order |
Additional Information |
||
Fuel Tank Capacity |
Metric |
U.S. |
Standard | 564 L | 149 gal |
Dimensions and Weights*
Wet Weight ** = 13607 kg (30000 lb) |
Consisting of: |
Power unit group Cummins QSC 8.3 L, tier 3, 6 cylinder |
Hydraulic Module |
Draw Works Grp. c/w 40,000 lb main line hoist with cable, wireline hoist less cable |
Hydraulic mast raising |
Hydraulic mast dump |
Telescopic mast assembly |
Rotation unit grp. c/w PQ™ NitroChuck™ |
Base frame |
Fuel tank (485 L/128 gal) |
Battery |
Hydraulic leveling jacks / outriggers (opntional) |
Foot clamp |
Mast access ladders |
Hydraulic water pump |
** For high mobility, the mast mounted platform is kept lightweight. An optional rod rack is available for vertical holes only, otherwise rods are stacked on the ground. |
Options |
Truck mounted – International 5600 |
Catwalk, railing and access stairs |
Rod Rack platform (vertical holes only)*** |
Hydraulic cooler (hot climate) |
Mast rest (truck mount version) |
Decals available in multiple languages |
Fluid circulation pumps (diesel supply and pressure) |
Mud mixer |
*** Limited to 22000 lb of gross weight stacked at 5° off vertical mast i.e. 140 x 30 ft stands NQ™ |
Warning: do not operate this drill with rods racked in wind velocities in excess of 85 km/h. this unit must not be operated without a truck or drilling skid base installed for stability. |
*Dimensions and weights may vary depending on options and should be checked before crating or lifting.