P&q University Lesson 7 Crushing & Secondary
Sep 02, 2019 In the primary stage, HSIs are better suited for softer rock, such as limestone, and less abrasive stone. In the secondary stage, the HSI can process abrasive and harder stone. CONE CRUSHER. Cone crushers are similar to gyratory crushers in that they have a mantle that rotates within a bowl, but the chamber is not as steep.
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