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IKO selects Coperion Kombiplast
IKO Polymeric has installed a Coperion Kombiplast line at its plant in Chesterfield, UK for the production of flexible PVC compounds for multilayer roofing membranes. The Coperion Kombiplast has been developed specially for the gentle compounding of temperature- and shear-sen- sitive polymers, such as PVC and cable compounds. It operates in two stages - a ZSK twin-screw extruder plasti- cizes, mixes and homogenizes the materials, while a downstream ES-A single- screw discharge unit gently builds up enough melt pressure for the subsequent pelletizing in the EGR eccen- tric pelletizer. IKO’s Kombiplast KP 62 Mv
PLUS/200 features a screw diameter of 200 mm. Andrew Salmon, general manager at IKO’s site in Chesterfield, said: “Whilst Coperion guaranteed us a throughput as high as
2,400 kg/hour, we can in fact operate the machine at up to 2,700 kg/hour with no loss of process stability while maintaining exactly the same high quality of compound.” IKO’s new compounding line is being operated without the cold mixer that is frequent- ly required upstream when compounding soft PVC, as the preheated pre-blend must typically be cooled down again prior to plastification. With Coperion’s Kombiplast, IKO can feed the hot pre-blend straight into the twin-screw extruder, thus maintaining high levels of energy efficiency and keeping down the production costs. IKO Polymeric is a member
company of the international IKO Group, which specializes in high-quality roofing systems for private and commercial buildings. ❙
www.coperion.com ❙
www.ikogroup.co.uk
IKO is using its new Coperion Kombiplast to produce flexible PVC compounds for roofing membranes
www.compoundingworld.com
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