DT821 TUNNELING JUMBO

SUB NAVIGATION FOR TUNNELING JUMBOS DT1331i Tunneling jumbo DT1231i Tunneling jumbo DT1231 Tunneling jumbo DT1131i Tunneling jumbo DT1131 Tunneling jumbo DT922i Tunneling jumbo DT912D Tunneling jumbo DT821 Tunneling jumbo DT820 Tunneling jumbo DT721 Tunneling jumbo DT621 Tunneling jumbo YOU ARE HERE:HOME PRODUCTS UNDERGROUND DRILL RIGS AND BOLTERS TUNNELING JUMBOS DT821 TUNNELING JUMBO DT821 TUNNELING JUMBO Sandvik DT821 Tunneling Jumbo for underground mining 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).