The lower discharge conveyor helps the grains in the silo to be conveyed out of the silo. Thanks to the lids over the conveyor system and the mechanism commanding these lids, the silo can be safely discharged. The command centre first opens the central lid, not letting other lids to be opened. After the flow from the central lid ends, the other intermediate lids are opened. The conveying system is produced from zinc-plated sheets. The power is directly conveyed from the motor reducer to the drive shaft in the conveyor. This ensures a more efficient and safe operation of the conveyor.