Tunnel jumbo drilling rig DD322i

Sandvik DD322i features a compact new carrier and design, for tramming in small headings, tight corners and intersections. Intelligent boom Equipped with two roll-overs, electronic parallelism and instrumentation, the SB55i instrumented boom ensures precise and fast positioning of the drill feed. Low emissions diesel engine Improved underground working conditions with Sandvik DD322i, equipped with engines certified to more restrictive environmental norms, including Tier 4F, Stage V certification. Optimized working environment A modern ergonomic cabin that offers reduced noise levels and 55% more visibility to maximize operator comfort, thanks to larger windows and glass doors. Tramming type and distance Hydrostatic transmission - Diesel engine - TCD3.6 (100 kW, Tier 3, Stage IIIA) or optional TCD2.2 (55 kW, Tier 4F, Stage V) Hole diameter 43 - 64 mm Number of booms 2 x SB55i Drift size (H x W) 3.5 x 3.5 m Feed length Fixed TF5i 12 to 18 ft or telescopic TFX 6-12ft. to 8-14 ft. Rock drill RD520 20kW Voltage 380 - 690 V (multi voltage) Controls type SICA (Sandvik Intelligent Control System Architecture) Weight 21,500 kg (depending on options)