DL2720 is a compact and fully-mechanized longhole drill with an electro-hydraulic top hammer designed for underground mining in 3.4 x 3.2 meter (H x W) or larger production drifts. It is capable of drilling vertical and inclined fans and single or double longholes up to 38 meters in length.
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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.
These sheets are made from solid sheet metal. The holes (meshes) are then produced by material removal processes such as perforation, punching, flame cutting, laser cutting, plasma cutting or waterjet cutting.
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