Kriwel Oy

Kriwel Oy, former Seltek Oy, is a family owned private company. Seltek Oy was originally founded in 1956 and has worked ever since mainly in the pulp and paper as well as mining industry. It all started around a patent for the material on a suction cover box. Later Seltek started to represent various companies in the pulp and paper industry, and focusing on the Finnish pulp and paper market.

After spending 30+ years in liquid filtration we have a good experience base and knowledge on applications, dare to call ourselves specialists in this field. There are not many applications we have not seen and we would be happy to suggest how to solve a filtration challenge.


Meet part of our team:





Pertti Rantala


Pertti Rantala has more than 40 years of experience in filtering solid-liquid separation and polishing filtration.

He has conducted laboratory and pilot tests for many years with the CTF Filters, SF 700 and SF 1000 filters as well as Filtermat Certus polsihing filters, Outotec Ceramec CC-1 filters, Larox pressure PF 2.5 filter, Metso (Sala) tube press and vacuum drum filters. Pertti helps us out with his valuable experience and wide knowledge of filtering in various industries like minerals and mining and many others. Feel free to contact Pertti directly at the number +358 40 709 9 543







Kristiina Zaeske


One part of the company offers services in court interpretation. Kinldy have a look at the follwoing web pages: www.oikeustulkki.fi or call us at +358 40 555 2 660