In-the-hole longhole drill rigs
DU311
- 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.
Features
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Compact drill
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.
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High mobility
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.
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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.
Product specifications
- 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)
- Drift size (H x W)
- 3.7 x 3.7 m
- Drill pipe diameter
- 76 - 102 mm (3 - 4 in.)
- Tramming type and distance
- Hydrostatic transmission - Diesel engine - OM904LA (110 kW Tier 3)
- Drilling power
- HP45, 45 kW
- Controls type
- CAN (Control Area Network)
- Weight
- 22,700 kg
Learn more about DU311 features
Flexible configuration
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.
Increased profitability
High-accuracy ITH drilling delivers enhanced profitability with the lowest cost per ton.
Related Products and Services
Parts and components
Rock drills
Rock drills are a highly demanding component to design and manufacture. With decades of dedication and engineering work we have developed our rock drills for harsh conditions and heavy-duty work.
Technology
Remote monitoring service
Remote monitoring service uses intelligent technology that enables the prevention and prediction of breakdowns before they happen.
Home
Services
We offer different type of service agreements and on demand services that can be adapted to suit the support you require – helping you to maintain your fleet in the optimal way.
Related products
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- Longhole diameter
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DU211-T
- Parallel coverage
- 0.305 m
- Longhole diameter
- 89 - 445 mm (4 - 18 in.)
- Drill pipe length
- 1.22 - 1.83 m (4.00 - 6.00 ft)
DU412i
- Parallel coverage
- 3.000 m
- Longhole diameter
- 90 - 445 mm (4 - 18 in.)
- Drill pipe length
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KS-series Boosters
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- Drill pipe length
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DU311-T
- Parallel coverage
- 0.762 m
- Longhole diameter
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- Drill pipe length
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KA-series Air Compressors
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DU411
- Parallel coverage
- 0.762 m
- Longhole diameter
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- Drill pipe length
- 1.22 - 1.83 m (4.00 - 6.00 ft)
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