Empty the powder or bulk material from a big bag (bulk bag) and convey it directly to a downstream station: This is exactly what the big bag emptying station (BBU) is used for. In combination with a vacuum conveying system, numerous tasks and system variants can be realised. For example, the powder can be transferred from the big bag (bulk bag) to a silo. Or the bulk material can be dosed by weight into a reactor vessel or mixer.