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DRY MATE­RIAL WEIG­HING AND DOSING HOPPER

Dry mate­rial weig­hing and dosing hoppers are used for volu­metric feeding of powder mate­rials or small-grained granulates.

Dosed mate­rial is discharged from the weig­hing hopper by the variable-speed mete­ring screw. The hopper can be fed fully auto­ma­ti­cally using screw conveyor or pneu­matic conveying system.

Capa­ci­tive sensors in the hopper detect minimum and maximum of the filling level. To avoid brid­ging of the mate­rial in the hopper, an addi­tional bridge-braker is installed in the hopper. In order to adapt the discharge quan­tity to the desired deli­very rate, the speed of the screw can be changed by using a variable speed motor.