Crushing 101 | Masaba
Many producers refer to jaws as "breakers" meaning that they break the rock down to a size manageable for the secondary crushers. The numbers used in referring to jaw crushers, such as 3042, refer to the opening size at the top of the jaw. The 30 is 30" left to right, the 42 is 42" across the jaw.
Aggregates Industry uses Diesel Generators | Rock Crushing ...
Shaft Impactors - Can be vertical or horizontal in design. These crushers use impact rather than pressure to crush the material. Used for sand, gravel and various materials. Crushing rock produces large amounts of dust. It is not uncommon for rock crushers to contain a water system with nozzles to lightly spray the rocks prior to crushing.