Sandvik has released its new tunnelling jumbo, the DT912D.
This new high reach, single boom machine is completed self-contained, and is driven by the most powerful engine ever installed on a diesel-hydraulic jumbo – the fuel efficient Cummins Tier 4 Final 205 kW diesel engine.
Equipped with an onboard four cubic metre compressor and a 1000 litre water tank for air-mist flushing, the jumbo’s intelligent control system provides increased productivity to operators, according to Sandvik.
Designed for fast and accurate drifting and production drilling of 12 to 125 m² cross sections, the 24-tonne jumbo, the DT912D is an optimal machine for multifaceted operations that will take excavation efficiency to another level.
It has a 25 kW high frequency RD525 rock drill or an optional RD520, and features as standard an electric controlled drilling system with added automatic functions, including one-hole automatics and a SB150 universal boom for large, optimally shaped coverage and full automatic parallelism.
In addition to face drilling, the versatile boom can also be used for crosscutting, bolt-hole drilling and extension drilling.
It can drill hole lengths up to 6180 millimetres.
The DT912D offers rapid, safe and balanced tramming due to its 4-wheel-drive centre articulated carrier.
It has a turning width of 4500 millimetres, a tramming/drilling with of between 2500 and 3000mm, a tramming/drilling height of 3590mm, and a tramming length of 14,900 mm.
Its FOPS/ROPS complied cabin is ergonomically designed and well insulated to minimise noise and vibration; the noise level remaining under 73dB (A) at all times.
As an option the cabin is also available with a cabin lifting system allowing improved visibility for tramming and drilling.
The DT912D also features Sandvik Intelligent Control system Architecture (SICA) with comprehensive built-in diagnostics and user-friendly controls for ease of use and maintenance.