Secondary breaking drill rigs

The Sandvik DB331 is a mobile, diesel-hydraulic secondary breaking drill rig designed for underground mining. It features a 14 kW RD314 rock drill, 11.33 m reach, and 41–64 mm hole diameter. With remote operation and air-mist flushing, it enhances safety and productivity in confined spaces.

The Sandvik DB311 is a compact, diesel-hydraulic secondary breaking drill rig designed for underground mining. It features a 14 kW RD314 rock drill, 30 m² coverage, and up to 2.23 m hole length. With a self-contained carrier, telescopic boom, and air-mist flushing, it ensures efficient boulder reduction in confined spaces.