Ceramic Foam Filters – Lanik

Lanik, developing business since 1991, is the purely Czech private company. The core activity is represented by manufacture and sale of ceramic foam filters, used under the trade name VUKOPOR® in the foundry industry in the sector of primary aluminium production, in petrochemical and food industry as well as for miscellaneous decorative applications. Manufacture of refractory ceramics is the complementary production to filters. Typical products are as follows: different filtering shaped pieces and systems, e.g. filtration carousels and grates, filtration boxes, transport channels, ceramic funnels and other shaped refractory concrete products used mainly in foundries. Products for the precision investment casting technology represent a complete product line. We are speaking about pressed ceramic funnels, injection mold ceramic cores, support crosses, ceramic bars and other auxiliary materials. Production of lubricants and separators for die casting has a long-time tradition in the company. Types of ceramic foam filters are conditioned in particular by requirements for their application. Filters for filtration of nonferrous metal alloys (casting temperature up to 1000 °C), filters for filtering cast iron with flaky and spheroidal graphite and filters intended for steel filtration are therefore used in practice. Depending on the cast material, Al2O3, SiC, ZrO2 or graphite based filters are applied. VUKOPOR® LD ceramic foam filters are designed for filtration of aluminum and aluminum alloys up to the temperature of 850°C especially for gravity casting into sand, ceramic or metal dies. A typical feature of VUKOPOR® foam filters is the three dimensional network of opened pores forming a labyrinth of their ceramic body.