The deflaking separators of VDT series belong to a family of primary pressure screens and separators. Based on technology these separators are designed for continuous deflaking and screening of waste paper. Final quality of the screened stock depends on boring of sorting screen and a way of operation. Their function is based on utilisation of hydrodynamic and mechanic effects of properly vaned rotors installed both on inlet and outlet sides of a sorting screen. These rotors provide sufficient flow rates even while separating stocks with coarse and heavy dirt. Rejects are discharged continuously or in cycles under pressure. This machine is allowed to be used only for purposes as stated herein.