Introduction of Double Roller Crusher I. Application The series 2-roller crusher can be applied in industrial sectors such as ore dressing,chemical industry,cement,refractory,abrasive and building materials to break to pieces ores and rocks of various high and medium rigidities,and particularly applied in the building material industry to produce pisolite and pea gravel,with better effect than ordinary crushers.This series crusher has characteristics of reliable working,simple repairment,low operation cost and adjustable marking granularity. Spec of Double Roller Crusher