Sandvik DL311 is a fully-mechanized and compact electro-hydraulic top hammer longhole drill designed for underground mass mining in 3.2 x 3.2 m or larger drifts. It is capable of drilling vertical and inclined fans and single or parallel Ø64…89 mm longholes up to 38 meters in depth, using T38, T45 and T51 MF-rods or Ø65 mm tube rods.
Sandvik DL311 is mounted on a 4-wheel drive frame-steered and diesel-powered carrier. It is equipped with the HL820ST hydraulic rock drill, LFRC700 drilling module, ZR20 telescopic boom, TAS drilling control system, remote control panel and FOPS operator’s (tramming) canopy for high drilling capacity and maximum uptime. The 360° drilling module rotation and wide boom swing and tilt angles make the unit suitable for most mining methods and various service support applications. The CANbus based TAS drilling control system with the user-friendly operating interface and various instrumentation and automation levels allow maximum productivity and good drilling accuracy.
The layout of the NC5 carrier is designed for good visibility and stability, ensuring safe tramming in narrow mine drifts. The operating and maintenance interface are designed for easy access and all service points are accessible from ground level.