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LargeRotoSonic 275 DUO

The LRS 275 DUO True 150Hz sonic drilling rig is a large strong sonic drilling rig. The 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. It is easy to change heads by switching the trolleyboard from left to right and vice versa.

  • Equipped with a LargeRotoSonic drillhead as well as a four speed rotation head
  • The DUO option will allow sonic drilling in all overburden and prove bedrock
  • Strong and manoeuvrable drilling rig
  • Maximum drill speed, capacity and boost of productivity
  • Upgrade to the reliable CRS XL platform


The LRS 275 DUO is the bigger version of our CRS machines. This larger sonic drill accommodates the powerful 50K LargeRotoSonic drill head and a four-speed rotation drill head. Both heads are mounted on a hydraulic side shift. The LRS 275 DUO accelerates drill speed, capacity and boosts your productivity. The DUO option will allow sonic drilling in all overburdens and prove bedrock. To go deep into the bedrock a 4 speed rotary head allows diamond coring with the same sonic drill rig. This 4 speed rotary head will be positioned next to the sonic drill head and will side shift over the bore hole easily. 

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 research, Geo technical sampling and testing, Geo-constructive drilling, 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. For comprehensive details download the overview. We also have a LRS 275 with a sonic drill head only. Is this not close to what you are looking for? Then our experts can also tailor a machine to your needs and requirements. 

*) Please note: our machines are supplied in silver from now on. If you do want a different colour 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


Esther Timmerman

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Need advice choosing the right product for your application? Our specialist Esther is happy to help.