Trough feeder can be installed on the ground or onto discharge port of ore bin. Slot Backplane for reciprocating motion, its stroke 20-60/min stroke 20-200mm. Stroke can be adjusted by drive eccentric, eccentricity as half stroke. Production practice of concentrator, for cohesive ore, eccentric distance of not less than 30mm. Trough width of trough feeder feeding maximum size was about 2-2.5 times. The biggest trough feeder can meet 500mm of granular iron ore to the mine. Specifications of the most commonly used is the 980*1240 trough feeder, feeding granularity 350-0mm, suitable for 400*600 Jaw Crusher feeding equipment.