According to the latest technology, rotor blades for wind turbines will be produced by the so-called vacuum infusion process. In this process 2 moulds (halves of the blade) were plated with glass fibre or carbon fiber tracts.
This step of the procedure is nearly made totally manually. Afterwards a vacuum will be generated and resin will be injected. This causes that the tracts stick together.
After the curing the two halves will be placed together to one blade and finally it will be varnished. In this production process our PVC spiral hoses are used to generate the vacuum and our PVC fabric hoses are to inject the epoxy resin.