Cornwall County Council’s term maintenance contractor Cormac has put its new Dando Drilling Multitec 4000 ground investigation rig to the test on a new project in Coverack.
Cormac is undertaking site investigation work at the village following serious flooding earlier this year.
Cormac’s new rig has been setup for DTH hammer drilling with a Halco Simcas system to simultaneously drill and case in the variable geology. The rig is also retrieving samples using rotary coring as well as window sampling equipment driven by the attached Dando 3D percussive hammer.
According to Dando, the small footprint of the rig allows easy access along the route and coupled with its versatility in both rotary and percussive operations mean it can easily meet the demands of the project.
Fitted with the heavy duty mast option and a rotary head which produces 6000Nm of torque and up to 750rpm the rig is capable of rotary augering, DTH hammer drilling, coring, mud and air flush open hole drilling as well as a full range of percussive sampling and geotechnical testing equipment using the hammer system.