The Comacchio GEO205 is a compact multi-purpose hydraulic rig, capable of drilling using rotary augers (solid or hollow stem), rotary drilling through rock (open hole or coring), rotary percussive drilling (using cased DTH) and window sampling. 

The most common drilling technique used is hollow stem auger with lined soil sampling through the centre.  This combination of techniques allows rapid, high quality soil sampling with the capacity to case the borehole as sampling proceeds.  Monitoring or remedial wells can then be installed through the centre of the hollow stem. 

If penetration of bedrock is required, this rig can also perform open hole rotary drilling and rotary coring as a follow-on or stand-alone technique.  Our Robit cased rotary percussive system can also be used to advance boreholes through dense, compacted granular overburden deposits.

The machine is mounted on rubber crawlers, is approximately 2.9 tonnes in weight and has a mast height of 4.5m (with a removable section to reduce height if required).

The rig is transported within a custom-built, curtain-sided trailer, towed by an Iveco artic unit. This trailer has been designed to carry the rig plus all required drilling tools, ancillary equipment and materials.

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