Sandvik DD321 ready for the race Sandvik DD321 boosts productivity in mine development and small scale tunneling. Powered by new efficient rock drills, robust booms and a wide selection of feeds, it offers an optimal coverage of 49 m 2 . The new carrier layout is specifically designed for safe access to all service points, and all daily maintenance is conducted at ground level. Adjustable drilling settings of the new hydraulic control system which optimize drilling performance in any conditions. To ensure highly accurate drilling results and enable valuable feedback information of the drilling process, the drill rig can be equipped with TCAD instrumentation. The DD321 is the successor to the proven Sandvik DD320 and DD420 drill rigs, with even greater serviceability, and improved performance. The modular design makes training, operating and maintenance of the fleet easier. Key features • Drilling booms providing 8 – 49 m 2 cross sections • 20 kW rock drills • TCAD/TLOG instrumentation • Fast and efficient mobile carrier • Safety cabin or canopy Sandvik DD321-40