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LargeRotoSonic 275 DUO

The LRS 275 DUO True 150Hz sonic drilling rig is a large strong and robust machine. The drill rig is equipped with a LargeRotoSonic 50K drill head and a four-speed rotation head. Thanks to the different drill heads, the machine can easily work under different conditions. The heads can be easily changed by turning the trolley board from left to right, and vice versa.

  • Equipped with LargeRotoSonic drill head and four-speed rotation head
  • Strong and maneuverable drilling system
  • Maximum drilling speed, capacity and increase in productivity
  • DUO option allows sonic drilling in all overburden and in solid rock


The LRS 275 DUO is the larger version of our CRS machines. This larger sonic drill includes the powerful 50K LargeRotoSonic drill head and a drill head with four rotational speeds. Both heads are mounted on a hydraulic side shift. The LRS 275 DUO accelerates drilling speed and capacity and increases your productivity. The DUO option allows sonic drilling in all overburden and proof rock. To drill deep into rock, a 4-speed drill head allows diamond drilling with the same sonic drilling rig. This rotary 4-speed drill head is placed next to the sonic drill head and can easily move laterally across the borehole.

The LRS 275 DUO is a strong and robust machine that can be used in a very wide range of applications. The drill can be used for mineral sampling, environmental testing, geotechnical sampling and testing, geoconstructive drilling and seismic drilling. This powerful LRS 275 DUO takes the best samples from different geologies with ease and is available in a Pro and a Royal variant. Download the overview for detailed information. We also have an LRS 275 with a sonic drill head only. Do you have special requirements for your LRS 275 DUO? Then our experts can also customize a machine according to your wishes and needs.

*) Please note that as of now, our machines are delivered in silver. If you still want a different color, please let our experts know.


Pull up force 12.000 daN/26.976 lbf
Engine 275 HP CAT stage 5 engine
Steel chain crawler carrier with rubber pads Yes
Radio remote Optional
Drilling mast for 3m/10' drill rods
Footclamp 60-355 mm triple footclamp
Winch Hydraulic 3.600 daN
Bean/ FMC pump Yes, L11-22
ManipAll 250 yes, remote control
Eijkelkamp Service Assistant Included