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a vsi is a vertical shaft impactor a rock crusher

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a vsi is a vertical shaft impactor a rock crusher

All roads you might say lead to the Vertical Shaft Impactor VSI because these crushers make it possible to create roadways and just about everything else Francis E Agnew of California patented one of the first Vertical Shaft Impactors in 1927 His configuration stacked three VSIs atop each other to produce sand thus starting the VSI evolution