Ubuntu Rock Drilling (is a level 2 Contributor to B-BBEE with 51% black ownership and specialises in core, geo-technical, air percussion and symmetrics drilling making us your drilling contractor of choice Expertise: 1:Core/Exploration Drilling (Diamond Drilling):diameters: ATX(32.51mm), BQ(36.4mm), Q (47.63mm), TNW(60.81mm), HQ(63.81mm), PQ(84.96mm), T6-146(128.8mm) and ZWF(165mm) • Geo-technical drilling • Groundwater Management Services • Drilling supervision • Geotechnical core logging • Detailed geological coal seam logging • Impact splitting • Core recovery calculations • Sampling 2:Air Percussion Drilling: • Boreholes varying from 5 inches (127mm) up to 20 inches (508mm) in diameter • Drilling supervision and borehole design • Boreholes frequently drilled by URD includes: - Production boreholes (Domestic water supply and irrigation boreholes) - Rescue bay boreholes - Monitoring boreholes - Discharge boreholes - Dewatering boreholes - Geological logging • Sampling • Symmetrics Drilling of 6.5 inches (165mm) up to 8.5 inches (216mm) (Robit 219 System) • Symmetrics drilling is used in Dolomites, unconsolidated material and to drill through cavities in underground mines and is especially effective where de-watering of the mine workings is required • Total dewatering is possible by drilling to below the floor of the mine working • Telescopic boreholes up to 500m and starting Diameter of up to 20 inches • RC (Reverse Circulation) Drilling is used to collect rock samples quickly and efficiently using a large rotary drill and air compressor. Ubuntu Rock Drilling Director Louis Berrington Louis has a B-Tech degree in geology and is a registered natural scientist (Pri.Sci.Nat: Geology). with 20yrs experience in exploration- and air percussion drilling.