Briquetters are used in the process of recycling for steel turnings, cost Iron borings, copper or brass powder, etc. Turning specifically are too bulky to fill a melting furnace efficiently. Normal baling is no solution because of their great elasticity - The bale would fall apart, as with paper stock or textiles.
Before turnings can be briquetted they must be chopped, shredded or
broken when they become dense (In the form of Unbroken Swarf). This
process involves double treatment in which very high pressure is exerted
on a small area, a relatively expensive processing method. The standard
sizes of briquette is 12 to 15 cms (diameter) & 10 cms (length).