Hot gas filters in the plastics industry

Improvement of filtration process in plastic factory

At one of our customers in the polymer industry, we optimized the filtration process in the factory. How we did this and executed it can be read in the challenge, advice and result below.

Challenge analysis: short filter lifespan and additional maintenance and waste

Our customer in the plastic industry used hot gas filters in part of the process for the removal of particles in a hot gas stream. These filters had a lifespan of four weeks and after saturation they had to be disposed of as waste. Changing the gas filters was a laborious task for the employees due to the weight of the filters and because it is usually very hot around the filter housing in the factory.

Interfilter advice: multi-layer reusable hot gas filter

On the advice of Interfilter and in consultation with the customer, a multi-layer hot gas filter was developed and installed in the factory's filter housing. These gas filters have a larger filter surface area, a cleanable and therefore reusable filter medium, and the filter is lighter in weight.

Result: reduced purchase, maintenance, and waste costs

Thanks to filters with a lifespan twice as long (up to eight weeks) and the cleanable medium, annual filter costs have decreased by over 75% and the customer has also seen a significant reduction in waste (costs). In addition, factory workers now have to change filters less frequently and the filters are much lighter, significantly improving working conditions.

View facts & figures

For more information about hot gas filters, you can read the product page. Curious about all the facts and figures of this project?