Sandvik
DT821 TUNNELING JUMBO
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Sandvik DT821 is a two-boom, electro-hydraulic jumbo designed for fast and accurate drilling in tunneling and cavern excavation. It is a powerful drill rig with added automatic functions and optional instrumentation to maximize productivity and ensure high-quality excavation. It drills holes with a diameter of 43 to 64 millimeters (1 ¾ to 2 ½ inches) with a depth of up to 6.2 meters (20 feet).
Sandvik DT821 is a two-boom, electro-hydraulic jumbo designed for fast and accurate drilling in tunneling and cavern excavation. It is a powerful drill rig with added automatic functions and optional instrumentation to maximize productivity and ensure high-quality excavation. It drills holes with a diameter of 43 to 64 millimeters (1 ¾ to 2 ½ inches) with a depth of up to 6.2 meters (20 feet).
Sandvik DT821 jumbos can be equipped with hydraulic or electronic drilling systems, with added automatic functions and comprehensive choices for instrumentation level, ensuring you get the machine perfectly suited to your task. It is available in both cabin and safety canopy versions. Sandvik DT821 jumbos can be used for face drilling, cross-cutting and bolt hole drilling.
Advantages
RD5 series rock drills deliver superior performance with high consumable life
Universal booms with large optimum shaped coverage and full automatic parallelism
Optional utility boom for bolting and utility works
Powerful four-wheel-drive center articulated carrier ensures rapid tramming and good balance