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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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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