Sandvik DL431 is a highly versatile drill rig used for production and longhole drilling in underground mines. Designed for a large vertical and horizontal coverage, it drills holes ranging from 54 to 89 mm in diameter and reach depths of up to 38 meters.
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Sand and gravel are now the most-extracted materials in the world. But the decline of available natural resources and the negative impact of natural sand’ extraction on the environment raised awareness of the need to find other solutions.
Manufactured sand produced by crushed rock is being considered as an appropriate alternative.
When sand and gravel are quarried, there are often impurities such as loam, clay, wood or coal. For this reason, a combination of cleaning and separating processes are implemented at an early stage to gain precious raw materials.
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