Concentrix - Overburden Case While Drill System

With the Concentrix Overburden System, Brown Bros Drilling can obtain high quality Reverse Circulation type samples in difficult to drill mineral rich gravels, boulders and alluviums.

The system works similar to Reverse Circulation with the same benefits. Also you can drill through difficult geology, then switch to either Reverse Circulation or Wireline Core.

  • From vertical to 45 degree angle holes
  • Drill into and through difficult geology
  • The same benefits as Reverse Circulation and Air Core
  • 5 sizes available - 250mm, 177mm, 150mm, 125mm and 100mm