PDF Construction, Working and Maintenance of Crushers for Crushing Bulk ...
Wear plates used to protect the crusher frame side plates. They are made from abrasion resistant (AR) plate (400 to 450 Brinell hardness), also called Boron steel. Top Size The largest particle size in an input or output size. Tramp Iron Bolts, shovel teeth, picks and other uncrushable metal that is often present in crusher input.