DD422i Development drill rig

Sandvik DD422i is a development drill rig based on an intelligent control system and engineered to provide top-level performance, accuracy and reliability for underground mine development and small scale tunneling. This next-generation mining jumbo has the widest range of automatic drilling functions for increased productivity with reduced costs. The well-designed, structures and proven components ensure a reliable workplace for both operators and maintenance crews.


  • Advanced drilling and boom control for better productivity and tool life
  • Ergonomic cabin for optimised operator comfort with improved visibility and reduced noise
  • Widest range of automatic drilling functions helps to achieve reduced overbreaking with maximised pull-out per blast
  • Dual control option for tough and intensive multi-task usage -drill can be used for both ground support and standard face drilling purposes
Technical data
Feed length Up to 5,270 mm
Hole diameter 43 - 64 mm
Weight 26,000 kg
Boom SB60 / SB60i
Engine type Cummins QSB4.5, 119 kW, Tier 3 / Stage V

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