In-the-hole longhole drill rigs
- Parallel coverage
- 4.800 m
- Longhole diameter
- 89 - 203 mm (4 - 8 in.)
- Drill pipe length
- 1.22 - 1.83 m (4.00 - 6.00 ft)
Sandvik DU431 is a fully mechanized in-the-hole (ITH) longhole drill fitted with an onboard booster and designed for underground mining in 3.2 x 3.2 or larger production drifts. This compact rig is capable of drilling vertical and inclined fans and single or parallel longholes.
Mobile and safe contained drill
DU431 has a compact and heavy-duty articulated four-wheel drive frame-steered carrier that provides high mobility and stability. The layout ensures fast and safe tramming in mine drifts and all service points are accessible from ground level.
RH6230 rotation head with heavy-duty spline piston, rotation motors and air swivel provides high radial loading capability on the bearings in pushing and pulling applications.
CB48 telescopic boom with 1.2 meter extension, 360° feed roll-over, wide swing, tilt angles, and pivot point rotation, makes DU431 suitable for most mining methods and various service support applications.
Learn more about DU431 features
On-board air booster
The onboard reciprocating or screw air booster improves the mobility of DU431 and increases productivity.
CANbus control system
The field-proven CANbus control system improves performance, hole accuracy and tool life.
Reliability in operation
With two front and rear stingers, DU431 provides proper feed stabilization and accuracy in drilling through constant feed force, ensuring high quality drilling.