At what speeds do cream separator bowls commonly rotate?

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tubular centrifuge — centrifuge Figure 1: Tubular centrifuge

Cream separator bowls typically rotate at speeds of approximately 6,000 to 8,000 revolutions per minute.

This centrifuge mechanism relies on the difference in density between cream and skim milk. As the bowl spins at these high speeds, the heavier skim milk is forced to the outer edge, while the lighter cream concentrates toward the center for collection.1