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 further divided..impact crusher function,Impact Crushers & Cement Crushers - Rotor Impact Crusher .For over 180 years, Stedman Machine Company has manufactured high-quality, professional grade impact crushers and effective rotor impact crushers for many applications and industries including aggregate, mining, and more. Our impact crushers are available in various sizes with feed, capacity, and horsepower options.