Sandvik DD311 is available in three different versions, including DD311D and DD311DE. It is a medium size, single-boom jumbo designed for fast and accurate drilling within drifting and tunneling of 40 m² sections.
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Tower mixing plants made by SBM have a compact, screwed design. Thanks to steep-sided outlet cones, aggregates are completely emptied which makes TOWERMIX® the perfect plant for slow-flowing materials.
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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