ACA PERMI PD – Real time process and quality control analyzer for filter media production

Filtration industry is growing fast, driven by mega-trends such as demand for purer air and cleaner water, both being the subject of ever-more stringent legislation. For filter media producers this means higher filtration efficiency at lower pressure drop levels. Same time the basis weight of media is requested to decrease, but the strengths properties increased. Sounds like an interesting equitation!

We at ACA Systems Oy have developed a reliable tool for you to make the production and quality of filter media to meet today’s and tomorrow’s high expectations of the market.

We have introduced a new continuous air flow analyzer that is able to measure either air permeability or pressure drop of a media real-time during the manufacturing process. The on-line method is fast, reliable and accurate and it gives typically over 0,95 correlations to various lab standards. The structural web control by ACA PERMI PD guarantees the stable quality of filtration media.

Please take a look on our application notes, you might find valuable insights to your cases.
– Process stability of a filter media

For more details download the brochure or contact us at

Meet us also at Filtrex2017!

Forming fabric quality control in airlaid nonwoven

ACA Systems Oy has successfully delivered the first Permi HP air permeability analyzer for forming fabrics online quality control application in airlaid nonwoven process. Idea is to be able to predict the life-time and change time of the forming fabric. New forming fabric starts slowly to loose its air permeability characteristics when continuously used in airlaid nonwoven process. No such reliable analysis has been available so far.

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Permi HP

Permi HP is a new online design for high air permeability materials such as various nonwovens and glassfiber nets. Latest delivery for glassfiber nets is Owens Corning USA.

RoQ deliveries

ACA has delivered the first 70 units of RoQ Roll Hardness Profiler. New features such as touch screen operation and WiFi are well received in a variety of industries. Applications include printing paper grades, specialty papers, plastic films, label and packaging materials. Companies using RoQ include Sappi, StoraEnso, 3M, Mitsubishi, Yupo, Honeywell, Avery Dennison, DelFortGroup and Bemis.