DD321 Development drill rig

Sandvik DD321 Development Drill Rig

Sandvik DD321 is a two-boom, electro-hydraulic mining development drill rig engineered to excel in demanding conditions and multiple applications. The various options of this mining jumbo make it suitable for a range of tasks, most commonly face drilling, cross-cut drilling and bolt-hole drilling. Well-designed, structures and proven components ensure a reliable workplace for both operators and maintenance crews.


  • FOPS/ROPS-certified canopy or FOPS-certified enclosed cabin for increased safety
  • Improved serviceability and robust structures offer reliability
  • Many instrumentation levels available, offering flexibility for various needs
  • Hydraulic control system offers accuracy and efficiency
Technical data
Engine power 110 kW
Feed length 6490 mm
Hole diameter 43 - 64 mm
Weight 22,000 kg
Boom/Mast type SB40 / SB40NV
Engine type Mercedes Benz OM904LA, 110kW, Tier3, Stage IIIA