RREW manufactured dust machine in different sizes according to requirement of customers, it is a type roller crusher. It is a simple Roll Crusher only like that is also manufactured out of heavy and tested rolls of manganese steel, one out of them is mounted on slide frame which permit the gap adjustment. The Rollers are fitted in coupling and move on bearings. The moving roller is spring loaded and provides safety to any feared damage incase of uncrushable materials passes through. These roll crusher are mainly used for making dust, 2 to 6mm products. Its feed size is 10mm to 25mm. These roll crusher are manufactured in different sizes.