OUR PRODUCTION PROCESS
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Raw materials are shipped in cardboard containers from factories in Norway, Finland, Great Britain, France and Germany. The density of the materials range from 600 to 630 kg/m³. During the first stage of production, called pre-foaming, the raw materials are expanded, agitated and steam heated. |
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Temperature, pressure and time determines the density of the finished EPS beads. After pre-foaming and drying, density is reduced from about 600 kg/m³ to between 20 and 30 kg/m³.
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The raw material is then blown from the pre-foamer into storage silos, where it is aged for a minimum of 24 hours. This helps remove surplus Pentane accumulated in the pre-foaming process. Pentane is a blowing agent added during the manufacture of the raw material.
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Aging takes place in large silos holding up to 3000 kg of EPS beads. The EPS is then blown into smaller silos, and from there into molds.
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The molds are injected with steam and then cooled, before a vacuum pump extracts excess water and condensate. The molds are then opened, and the finished products are released.
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Automation has simplified a lot of the process. We have from the beginning worked with robotics and automation in mind. |
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In order to remain a leading EPS manufacturer in Norway, we need to strengthen our team.
29.10.2009 –
BEWI byggesystem has become even better.
29.10.2009 –
BEWI has made steps to become the most environmentally friendly EPS manufacturer.
29.10.2009 –
BEWI’s products are made with expanded polystyrene (EPS), one of the fastest growing building materials in the construction industry.
26.05.2009 –
BEWI have made things easier for the Scandinavian construction trade. Through establishing BEWI Polar and acquiring Swedish Genevads, our position as full-line supplier of insulation products to the construction industry has strengthened.
26.05.2009 –
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