Reciprocating feeder, also known as trough feeder or reciprocating coal feeder, is a classic feeding equipment widely used in mining, metallurgy, coal and building materials industries. The core working principle of this equipment is to drive the crank connecting rod mechanism through the electric motor to drive the tank body to perform periodic reciprocating linear motion. When the tank moves forward, the material is transported to the discharge port with the help of friction; when returning, the material in the upper layer of the tank falls due to gravity, achieving intermittent and pulsating uniform feeding. Its distinguishing features are large feeding force, stable and reliable operation, especially suitable for processing large, granular or grinding materials with large specific gravity, and can withstand large warehouse pressure.