Full definition
Equipment that meters bulk material from a hopper to a conveyor, screen or crusher at a controlled, continuous rate. Types: electromagnetic (amplitude-controlled, 0–100%), eccentric mechanical and grizzly (with bars for pre-classifying coarse rock). Capacities: 5–2,000 t/h. Reduces choking and load peaks in downstream equipment. Brands: Eriez, General Kinematics, Metso.