The LS250 MiniSonic is the perfect rig for a wide variety of soft ground, shallow drilling projects including environmental, tunneling, water management, grade control, and leach pads. Faster penetration, nearly undisturbed samples using little or no fluids, and its casing advancement system make the LS250 MiniSonic ideal for a variety of applications.
The mining industry benefits from the LS250 MiniSonic’s extremely accurate sampling of unconsolidated formations.
The LS250 MiniSonic eliminates the risk of cross contamination and is ideal for environmental and geotechnical work.
Precisely drilling straight holes at varying angles makes the LS250 MiniSonic ideal for infrastructure projects.
The LS250 features a rod presenter where rod and casing can be loaded horizontally and an actuator then presents the rod and casing vertically to the head. The head rotates 28 degrees to the side for sample extraction. Head slide shift allows for unobstructed winch use down the hole.
The interlocked rotation barrier slows rotation when the barrier is open, providing additional operator safety. The LS250 Sonic Drill is also available with full CE certification (Machinery Directive 2006/42/EC) according to the latest EN16228 safety standards.
When equipped with the Tier 4 final engine, the LS250 Sonic Drill provides an extremely quiet working environment. High idle sound level shows 74 dB while never exceeding 99 dB at full power when drilling*.
The LS250 Sonic’s mast articulation and wiggle tail enables the mast to shift from left to right and front to back to position the mast precisely over the hole, eliminating time consuming rig movements. The dump mast allows the crew to work from the ground, safety is enhanced by avoiding stairs and safety rails often required when working from a platform. The mast articulation allows for drilling at angles from 90 to 45 degrees.
Interlocked rotation barrier – rotation slows when open for enhanced safety
Fits in shipping container and makes the ls250 minisonic perfect for smaller drill pads. short mast option available for low overhead clearance applications.
Rod presenter allows the casing to be loaded horizontally.
Pilot operated hydraulic system is easy to operate and maintain.
Eliminate time consuming rig moves with the mast articulation and wiggle tail which allows the mast to shift from left to right and front to back to position the mast precisely over the hole. the mast articulation allows for drilling from 90 to 45 degrees.
Tilting head facilitates rod manipulation for faster cycle times. patented airbag system isolates the vibration from the rig and transfers it down the hole for more efficient drilling.
Wide track mounted and low ground pressure (0.3 bar/4 psi) – perfect for increased accessibility in the most sensitive and fragile terrains.
General Performance Rating |
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| Metric | U.S. | ||
| Drilling Depth*
* Depths based on normal drilling conditions. Varying ground conditions and drilling styles may vary results. |
4.75 in (121 mm) | 78 m | 255 ft |
| 6 in (152 mm) | 61 m | 200 ft | |
| 7 in (178 mm) | 52 m | 170 ft | |
| 8 in (203mm) | 45 m | 150 ft | |
| 9.25 in (235 mm) | 39 m | 130 ft | |
| 10.5 in (267 mm) | 34 m | 110 ft | |
| 12 in (305 mm) | 30 m | 100 ft | |
| Max Drilling Diameter | 305 mm | 12 in | |
| Pull Back | 66 kN | 14,800 lbf | |
| Down Force | 24 kN | 5,300 lbf | |
| Max Casing Length | 3 m | 10 ft | |
Sonic Head |
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| Metric | U.S. | ||
| Drill Head Type | MiniSonic | ||
| Vibration Motors | Fix displacement piston motors | ||
| Frequency Range | 0-75 Hz | ||
| Output Force @ 150 Hz | 182 kN | 41,000 lbs | |
| Maximum Torque | 2,400 Nm | 1,700 ft/lb | |
| Rotation Speed | 0 – 80 RPM | ||
Prime Mover |
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| Metric | U.S. | ||
| Engine – Standard Unit | Cummins QSB, 4 cylinder, turbo charged, air-cooled diesel engine |
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| Displacement | 4.5 L | 272 in3 | |
| Power (maximum) at | 119 kW | 160 hp | |
| Emissions (Option) | Stage III or Stage IV | Tier 3 or Tier 4 final | |
| Fuel Tank Capacity | 193 L | 51 gal | |
Drill Mast System |
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| Metric | U.S. | ||
| Drilling Angle | 45° off horizontal to 90° vertical down | ||
| Standard Mast Head Travel | 4.0 m | 13 ft 2 in | |
| Short Mast Head Travel (Option) | 2.4 m | 7 ft 11 in | |
| Head Rotation | 0 – 28 Degrees | ||
Main Winch |
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| Metric | U.S. | ||
| Line Pull | |||
| Bare Drum | 11,000 N | 2,472 lb | |
| Full Drum | 9,000 N | 2,023 lb | |
| Rope speed | |||
| Bare Drum | 27.5 m/min | 90 ft/min | |
| Full Drum | 34 m/min | 111.5 ft/min | |
| Main line winch cable dia. | 8 mm | 5/16 in | |
| Rope length | 65 m | 213 ft | |
Foot Clamp/Breakout System |
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| Metric | U.S. | ||
| Rod Clamps | 2 (dual cylinders – top and bottom) | ||
| Max clamping diameter (clamp/breakout tool) |
305 mm | 12 in | |
| Clamping force | 129 kN | 29,000 lb | |
| Max breaking torque | 23 kNm | 17,000 lbft | |
| Max breaking angle | 20 degrees | ||
Undercarriage |
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| Metric | U.S. | ||
| Crawler – Standard Unit | Rubber Tracks | ||
| Max speed | 6.25 km/h | 3.9 m/h | |
| Track width | 600 mm | 24 in | |
| Ground pressure | .28 bar | 4.0 PSI | |
Grout Pump |
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| Metric | U.S. | ||
| Type | SPX40 Hose Pump | ||
| Max flow | 160 lpm | 42 gpm | |
| Max pressure | 16 bar | 232 PSI | |
Water Pump |
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| Metric | U.S. | ||
| Type E04 (Option) | FMC E0413 | ||
| Max flow | 80 lpm | 21.1 gpm | |
| Max pressure | 41 bar | 595 PSI | |
| Type L09 (Option) | FMC LO918 | ||
| Max flow | 108 lpm | 28.7 gpm | |
| Max pressure | 48 bar | 700 PSI | |
| Type W11 (Option) | FMC W1122 | ||
| Max flow | 201 lpm | 53 gpm | |
| Max pressure | 69 bar | 1000 PSI | |
Welder Generator |
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| Metric | U.S. | ||
| Type | Hydraulic driven Getec | ||
| Generator | |||
| Voltage | 120 V | ||
| Frequency | 60 Hz | ||
| Power | 4,000 W | 5.36 hp | |
| Welder | |||
| Current | 200 A | ||
| Voltage | 12 – 30 V | ||
| Duty cycle | 68% | ||
Welder Generator – European Version |
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| Metric | U.S. | ||
| Generator | |||
| Voltage | 230 V / 400 V | ||
| Frequency | 50 Hz | ||
| Power 230 | V 3,500 | W 4.7 hp | |
| Power 400 | V 6,500 | W 8.7 hp | |
| Welder | |||
| Current | 180 A | ||
| Voltage | 22 – 32 V | ||
| Duty cycle @180 A | 50% | ||
| Duty cycle @110 A | 100% | ||
Autohammer (Standard Penetration Test) |
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| Metric | U.S. | ||
| Impact rate | 1 – 30 blows/minute | ||
| Hammer size | 63,5 kg | 140 lb | |
| Hammer drop height | 762 mm | 30 in | |
| Max pressure | 124 bar | 1800 PSI | |
| Max flow | 60 lpm | 15.9 gpm | |
| All up weight | 226 kg | 498 lb | |
| Certified hammer efficiency | 64 – 72% | 64 – 72% | |
