20 sack emptying filter, existing out of sack discharge and a cartridge filtercleaned by compressed air, were delivered. All sack emptying stations are centrally exhausted by a single fan. The pneumatic cleaning of filter cartridges is automatically turned on and off by a proximity switch, which is initiated by the filler chute door.

Since it concerns - according to production - small loads, the bags to be emptied are slit by hand and emptied into the filler chute. A bag filing before and a grating in filler chute faciliate handling.