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.