Sandvik Mining and Rock Technology has introduced the DD320S hydraulic drill for underground mining and tunneling operations.
The two-boom jumbo DD320S combines THC560 hydraulic drilling controls, a B26XLF boom and HLX5 rock drill with 20 kilowatts of impact power for heavy-duty drilling and bolting.
It is optimised for bore holes between 43 millimetres and 64 millimetres and reaming holes between 76 millimetres and 127 millimetres. The drill’s diesel engine and layout are similar to Sandvik’s existing DD321 technologies, ensuring spare parts across the fleet.
The DD320S also includes several safety features, such as the option of a roll-over protective structure (ROPS) of falling-object protective structure (ROPS) operator cabin, in addition to standard ergonomic hand rails and anti-slip stairs.
Optional movement prevention switch and access detector and a newly implemented compressor thermal monitoring system are also available.
“The new Sandvik DD320S is designed to meet the needs of both mining and tunneling construction customers, customers who appreciate high drilling performance together with reliability and low operating costs through proven components and simplicity of design,” Johannes Välivaara, product manager for underground development drills at Sandvik Mining and Rock Technology, explained.
The drill has been tested successfully by contractor Sargin Construction and Machinery at the Esan Balya mine in Turkey.
Välivaara said the outcome of the tests at the mine were well above the benchmark when compared with other original equipment manufacturer (OEM) machines in operation at the mine.
“At the end of the trial both we and the customer were very impressed about the figures,” Välivaara concluded.