Secondary breaking drill rigs

Sandvik secondary breaking drills are engineered to optimize extraction rates and safely release blockages to improve drawpoint availability in back caving operations and narrow vein mining. Secondary breaking drills increase productivity by breaking oversized boulders without the need for explosives and time-consuming ventilation and evacuation measures. Remote control ensures a safe working environment for the operators.

The Sandvik range of secondary breaking drills includes compact and flexible mining jumbos, longhole rigs as well as drill-charge and drill-split breaking units capable of fast, easy positioning and effective operations in confined spaces. The jumbo layout of the larger machines provides a well-protected work environment for maximum productivity, while the smallest rig offers the best accessibility and flexibility in confined spaces.

Sandvik DB331 is a mobile drill-and-charge unit with integrated mechanized drilling and explosive charging functions. The rig is based on a self-contained diesel hydraulic platform, with an on-board water tank and large compressor for air-mist flushing. A compact feed and efficient Sandvik RD314 rock drill enable easy positioning and fast drilling in confined spaces, such as inside a drawpoint.

Sandvik DB311 is a versatile secondary breaking unit designed to reduce large boulders and improve the ore flow in mass mining operations. The rig is a self-contained diesel-hydraulic carrier with on-board water tank and large air compressor for air-mist flushing. A robust telescopic boom with double rotation actuators and compact feed enables easy positioning within confined spaces at drawpoints, while the high-frequency rock drill enables fast penetration rates.