SANDVIK DT821―TUNNELING JUMBOS
Sandvik DT821 is a two-boom electrohydraulic jumbo for fast and accurate drilling in tunneling and cavern excavation. The hydraulic controlled drilling system with added automatic functions and optional instrumentation enable productive and high-quality excavation. The RD520 rock drills deliver superior performance with high consumable life.
Sandvik SB90 universal booms have a large optimum shaped coverage and full automatic parallelism. In addition to face drilling the unit can also be used for crosscutting and bolt hole drilling. An optional utility boom for bolting and utility works is available. The powerful 4-wheel-drive center articulated carrier ensures rapid and safe tramming with a good balance.
MAIN BENEFITS
EASY TO OPERATE
This tunneling jumbo uses a powerful four-wheel-drive carrier to ensure rapid tramming and good balance. Its universal booms offer greater coverage and full automatic parallelism, while optional utility booms can be added for bolting and utility works.
STRONG FEED
The strong feed allows the RD5 series rock drill to deliver optimal performance with a higher consumable life. Operators can use the jumbo for face, cross-cutting and bolt-hole drilling.
WATER-MIST FLUSHING
The tunneling jumbo uses an 11 kW water booster pump for water-mist flushing, with a capacity of 200 l/min and a pressure of 10 – 15 bar.
Similar models may be shown in addition to the featured model. Equipment may be shown with options. Specifications are subject to change without prior notice.
