Sturtevant Roll Crushers are constructed from heavy-duty cast iron and deliver uniform granular product with minimal fines, offering up to 4:1 material reduction ratio.  Capacities available from 1/4 ton to 44 tons per hour.  Roll Crushers are best suited for controlled reduction of friable materials to granules where fines are undesirable in applications such as aggregates, ceramics, chemicals, minerals and sintered metals.