The thawer line has been developed thanks to partnership work, in which KW involved diff erent skills, right from the start of the project: from clinical and medical competence to industrial and scientifi c research, combining them with its thorough manufacturing know-how. And it has been patented by KW. W-PFD (or W-SCFD) is a completely innovative machine, both from the point of view of the choice of materials and in the way it works. In fact, using this thawer it is possible to trace every step of the process; by reading the bar code or other forms of identifi cation, the machine can recognise the operator, the type of bag and then from the bag trace the donor. Through the electronic control unit with touch screen it is possible to transfer the information in the users local network or fi le all the defrosting plan data on SD cards. Unlike other appliances on the market, which only measure the temperature of the bath, the KW thawer, which has several sensors in each pocket, continuously keeps the temperature of each bag under control, ensuring: Total traceability of everything that has occurred during defrosting. Validation of the entire defrosting process. Perfect homogeneity of the plasma defrosted with Hydro_pump_massage® i.e. the machine can subject the bag to a hydromassage treatment, so that at the end of defrosting the plasma is homogenised reaching a better quality. Asynchronous defrosting of several units of fresh frozen plasma or of several units of stem cells; the thawer is fi tted with diff erent independent heating units, so it is possible to activate the heating processes asynchronously and in a fully independent way.