In-the-hole longhole drill rigs

DU311-TK

Parallel coverage: 0.762 m
Longhole diameter: 89 - 254 mm (4 - 10 in.)
Drill pipe length: 1.22 - 1.83 m (4.00 - 6.00 ft)

Sandvik DU311-TK is a compact track-mounted in-the-hole longhole drill rig fitted with an onboard booster and designed for underground mining in 3.8 x 3.8 meter or larger production drifts. This versatile production drill is capable of drilling vertical and inclined fans and single or parallel longholes.

Features

Optimal production drilling

The compact drill is an optimal size for production drilling and service support in narrow mine drifts and is available in configuration for reverse circulation.
Robust rotation head

The drill has a robust RH6230 rotation head with spined piston and a rotation speed of 0 - 60 rpm.
Robust tracks

The carrier is equipped with triple grouser tracks, offering high levels of stability and increased weight distribution when tramming in mine drifts.

Product specifications

Download DU311-TK technical specification sheet (PDF)

Parallel coverage: 0.762 m
Longhole diameter: 89 - 254 mm (4 - 10 in.)
Drill pipe length: 1.22 - 1.83 m (4.00 - 6.00 ft)
Drift size (H x W): 3.8 x 3.8 m
Drill pipe diameter: 76 - 127 mm (3 - 5 in.)
Tramming type and distance: Hydrostatic transmission - Electric powerpack tramming
Drilling power: HP45, 45 kW
Controls type: CAN (Control Area Network)
Weight: 12,700 kg

Learn more about DU311-TK features

Suitable for most mining methods

The drill is suitable for most mining methods and various support applications due to its 360° feed rotation, wide slide-over and feed tilt.

Stability and safety

The heavy-duty feed positioning system with fixed centralizer offers accurate alignment and stability in drilling. The mechanized pipe carousel improves safety and productivity.

CANbus control system

The field-proven CANbus control system and drilling instrumentation ensure good control of the drilling operation for improved performance, hole accuracy and tool life.