Upgraded ROC D3: Leaner, faster, stronger

At the heart of the upgrade is a new Cummins Tier 3/Stage 3 engine, capable of 116kW at 2,000 rpm. This turbo-charged unit is controlled by a fuel-saving device that automatically adjusts the engine to an idling rpm between operations. The system allows the rpm to be set according to the prevailing conditions and the type of drill string being used. An enlarged fuel tank guarantees a full 12 hours of operation before re-fuelling.

With its ground clearance of 340 mm and reach of up to 5.2 metres, the ROC D3 series is the ideal solution for pioneering and urban drilling tasks. The track-mounted rig is highly manoeuvrable and comes in three standard versions: ? ROC D3-01 with folding boom and rod handing system (RHS) with 4 + 1 max 3.66 mm (12 ft) rods ? ROC D3-03 with extended folding boom and rod adding system (RAS) ? ROC D3-03 with extended folding boom and rod rack

Specialized rock drills

Another major upgrade to the series is the inclusion of two new rock drills, the COP 1640 and COP 1240, rated at 16- and 12 kW respectively. Both units are fitted with enlarged drivers that feature an evolved spline design resulting in extended life for the driver itself and the shank adaptor.

These robust rock drills are designed specifically for surface drilling and are compatible with R32, T38 and T45 shank adaptors.

The rigid aluminium feed features hydraulic drill steel supports and cylindrical feed via cable for accurate collaring and constant, even force on the drill bit. Greater flushing capacity has also been added to the ROC D3 series, which can now produce 95 l/s and cope with the most demanding drilling conditions in the hole range 41?89 mm, which is a standard for the 01 version.