In-the-hole longhole drill rigs
- Parallel coverage
- 0.762 m
- Longhole diameter
- 89 - 445 mm (4 - 18 in.)
- Drill pipe length
- 1.22 - 1.83 m (4.00 - 6.00 ft)
Sandvik DU311 is a fully mechanized, center-articulated, in-the-hole (ITH) drill designed for high mobility and utility in underground mining. It is a compact yet versatile machine with an onboard reciprocating booster for increased productivity.
The compact ITH longhole drill is perfect for contractors and mines requiring mobility when working in small cross sections. It is capable of drilling vertical and inclined fans and single or parallel longholes.
The compact, heavy-duty, rubber-tired articulated carrier with hydrostatic transmission ensures maneuverability and good stability, for fast and safe tramming in small and medium mine drifts.
Onboard air supply
Reciprocating compressors are used where high compression ratios are required per stage without high flow rates. Onboard KR551 booster increases productivity and mobility.
Learn more about DU311 features
The different mast and carousel configurations for production drilling or service hole applications make this in-the-hole production drill highly flexible and versatile.
Drilling operation control
The CANbus drilling control system and instrumentation ensure good control of the drilling operation. The control panel is easy to use and maintain.
High-accuracy ITH drilling delivers enhanced profitability with the lowest cost per ton.