Four BoVac Drum drum filters are operated for filtration, washing and dewatering of fine sized tarnishing pigments. Each of these modern 5 m² vacuum drum filters replaces one 8 m² drum filter of old design. The filters are equipped with adjustable wash bars with spray nozzles and with a wash hood. Cake wash achieves a reduction of conductivity in the filter cake from 42.000 µS down to180 µS after cake wash.

Exchangeable filter cells allow easy cleaning and incomparable quick re-clothing. With a second set of filter cells already equipped with filter bags the time for re-clothing is only approx. 1-2 hours, including shutdown, cleaning and restart of the filter.

BoVac Drum Filter S5

Units installed



Filter area per unit

[ m² ]


Material of construction



Power of filter drive

[ kW ]


Year of commissioning




Process and Operation Data

Solids throughput

[kg DS/h ]


Cake moisture

[ wt.-% ]


Wash result


reduction of conductivity from 42.000 µS down to180 µS

Time for change of filter cloth




Product Data



Tarnishing pigments

Medium particle size

[ µm ]



[°C ]

40 - 50


Any Questions? One Call is enough.

© 2020 BOKELA GmbH Karlsruhe, Germany
This site uses cookies, Google Fonts, Google Maps, Youtube, and Google Analytics to give you the best experience on our website. If you’re happy to receive all cookies, please click on ‚Agree‘. Further details and information can be found in the data protection declaration and in the imprint.