Dynamic Crossflow Filter

Crossflow filters are state-of-the-art for substances with poor filtration characteristics. The use of ceramic filter membranes is gaining popularity in successful implementation when other separation processes, besides cake-forming filtration, do not achieve the desired results.


With the Krauss-Maffei dynamic crossflow filter DCF, ANDRITZ was able to successfully enhance dynamic crossflow filtration using two shafts. The improved process is especially suited for processing sensitive or viscous products. The DCF is able to concentrate the retentate to achieve a pasty or sludge consistency. As a result, it is more efficient in recovering valuable elements than any other crossflow filtration technology. Conventional, circulating crossflow filtration minimizes the formation of a clogging layer on the filter’s surface by passing a process medium over the membrane. However, this procedure is inefficient when processing sensitive or viscous products and is generally not advisable. Under these conditions, the feed cannot be concentrated into a high-viscosity retentate.
The technology of the Krauss-Maffei dynamic crossflow filter DCF generates a differential speed in the opposite direction between overlapping membrane discs rotating in the same direction.

This design generates a turbulent crossflow without using a pump to circulate the retentate. The wall shear stress generated is 50% higher than found in conventional crossflow filters. This greatly reduces formation of a clogging layer, while substantially improving the filtration rate at the same time. This advantage is most evident when dealing with high-viscosity retentates.


DCF, Andritz separation


If you have any questions please don`t hesitate to contact Thurne specialist directly:

Thurne Baltic

Andris Putnins
Product Sales Manager
Product Sales Manager B.Sc. Chemical Engineering, M.Sc. Materials Science

Phone number

Direct phone: +371 6616 3763 Mobile phone: +371 2689 6799

Thurne Denmark

CEO M.Sc. Process Engineering & Industrial Economics

Phone number

Mobile phone: +358 40 183 5870

Thurne Finland

Henrik Packalén
Product Sales Manager
Product Sales Manager

Phone number

Mobile phone: +358 50 477 5177

Thurne Sweden, Norway

Martin Holmen
Product Sales Manager
Product Sales Manager M.Sc. Market Economy

Phone number

Direct phone: +46 765 172 007 Mobile phone: +46 8 5576 9347

Thurne Poland

Robert Trambacz
Head of Sales, Poland
Head of Sales, Poland M.Sc. Mechanical Engineering

Phone number

Mobile phone: + 48 505 558 761