Principle of operation the new generation air-jet spinners were presented. Based on Murata Jet Spinner (MJS), MTS (Murata Twin Spinner) and MVS (Murata Vortex Spinner) offered by Japanese company MURATA and air-jet JW and J20 spinners offered by Swiss company RIETER. The principle of yam formation in double helix vortex was discussed, as well as pneumatic spinning using the principle of false twisting. In the classic two-jet pneumatic spinning air jets MJS air-jetthe principle of false twist was used. Element which impart the yarn twist in the pneumatic one-jet MVS spinning is a specially formed air jet having inside a hollow channel and additional air intakes to allow for a helical vortex. The most innovative air-jet pneumatic spinner is the MVS VORTEX III 870 working on the so-called „self-spinning" technology.