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How small is ore after primary crushing in a jaw crusher?
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mineral processing
Schematic diagram of a flotation separation cell.
In the process of mineral processing, primary crushing is the initial stage used to reduce large, tough rock masses into a manageable size. When using a jaw crusher, which can feature openings as wide as two metres, the ore is typically crushed to a size of less than 150 millimetres. This resulting material is then suitable to serve as feed for the secondary crushing stage.1