... gentle crushing of soft to medium-hard bulk materials. Double roll crusher1,Easy Maintenance; 2,Low Cost;3,Stable ... , can crush the middle - hardness ore and rocks. Double roll crusher Working Principle: The discharging size is adjustable. Between ... are compacted and crushed, and then are discharged. Double roll crusher,stone crusher price parameters Model2PG400×2502PG500×4002PG610×4002PG750×5002PG900 ...