... 1.reduction ratio; 2.high capacity; 3.uniform sizes of product; 4.easy maintenance, freight economy. Jaw Crusher Jaw Crusher appeared in 1858, the ... operation, easy maintenance, less operating cost and so on. Jaw Crusher widely used in mining, smelting, building material, highway, railway ... of hard ores and rocks with.2, the series crusher most appropriate breaking strength no higher than 320MPa (MPa ...