Plate feeder applies to distribution and handling of materials from storage silo to crusher, conveyor or other machine tools horizontally or obliquely in an uninterrupted and even way. Slat feeders are widely used in technological processes such as material selection, transport, distribution of mining, cement, chemical and metallurgy enterprise. They apply to feeding processes of bulk materials, block materials and materials large in quantity on the production line of large and medium-sized cement plants. They are capable of transporting chunks of materials and working reliably in hot and humid environment. According to the bulk density and block size of conveying materials, they can be classified into light-duty slat feeders, middle-duty slat feeders, and heavy-duty slat feeders.