BARL precision metering device serve even dosage of smaller dust-shaped and fine-grained bulk materials. 

The bulk material must be ready to be conveyed and flowing. With the help of the agitator in the inlet area, a near-constant filling degree can be ensured. Resulting agglomerations in the silo can be chopped and operational safety can thus be increased. The progressive spindle pitch also reduces the danger of bulk material compaction within the conveyor tube. Screw coil and housing are produced to the precise size and thus as tight as possible. The unscrewable conveyor pipe makes disassembly or cleaning of the screw easier. 

Outer bearings are part of the serial equipment.