Although employment for hundreds of occupations are covered in detail in the Occupational Outlook Handbook, this page presents summary data on additional occupations for which employment projections are prepared but detailed occupational information is not developed.
A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust.. Crushers may be used to reduce the size, or change the form, of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials (as in rock ore), so that pieces of different composition can be differentiated.
