QUARRYING AND SURFACE mining needs efficient rock drills
On surface, the performance of a rock drill is subject to varying conditions and variations in temperature and humidity. We promise consistent and accurate results with our products.
QUARRYING AND OPEN PIT MINING
Production drilling (Bench drilling) on the surface mine is very much the same as in the underground mine; in other words, it is drilling the blast holes to extract the minerals from the mine. The difference is the direction and flushing. While underground, the drilling is typically upwards; on the surface, it is downwards. Flushing is done with air compared to water underground. Blast holes have extensive diameter drilling (typically between 51 to 152 mm) and are long (typically between 5 to 20 m).
Like underground, the blast hole straightness is the essential factor for cost-efficient production in mining. While the production drilling is typically extended hole drilling, it requires strong and stable torque with higher single impact force from percussion. Above helps to manage the hole deviation and secure straight holes for trouble-free drill rod retraction. Naturally, the reliability of the rock drill is essential in production drilling.
