Impact Crushers & Cement Crushers - Rotor Impact Crusher .Impact size reduction includes striking to pulverize material. The primary impact crushers include horizontal shaft impactors (HSI), cage mill pulverizers, and.what is an impact crusher,Impact Crusher | Description | Advantages | Types of Impact Crusher .Aug 15, 2012 . In normal types of crusher pressure is generated for the crushing of rocks. But, impact crushers involve an impact method. Impact crusher is.