Polyester Nonwoven for Coolant Oil Filtration

Coolant oil filtration is a crucial step during metalworking to guarantee an efficient removal of coolant/rolling oil contamination such as chips and wear. This allows for an ecological and economical re-use of the lubricants while still meeting the high-quality requirements for the final products. Large scale industrial systems like rolling mills are found for instance in the automotive industry and utilize belt or plate filter systems.

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Jörg Meier
Product Development Leader

"Johns Manville's Evalith® polyester nonwoven for coolant oil filtration applications provides high mechanical strength combined with a high web uniformity. A smooth media surface is ideal for a proper discharge of the filter cake. The Evalith® filter media portfolio covers area weights ranging from 20 g/m² to 100 g/m². Different fiber and pore sizes are available for an optimal filter media design."

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What is a Polyester Nonwoven?

Polyester nonwoven consists of randomly orientated polyester filaments, thermally bonded. PET bicomponent nonwoven is made of filaments with a higher melting core polyester and a lower melting sheath polyester.

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Souvik Nandi
R&D Director

"Did you know that our Evalith® polyester nonwoven for coolant oil filtration contributes to the production of a broad product portfolio that covers ultra-lightweight aluminum foils for multi-layered beverage cartons to heavy weight sheet metals used in automotive production?"

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Tim Swales
Chief Sustainability Officer

"The continuous purification of coolant/rolling oil enables the industry to save raw materials by a recirculation process. The key task in this process can be accomplished by using Johns Manville Evalith® spunbond with its proven quality."

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