The NWS/K chain winder enables improved slot filling, and therefore a better fill factor for internally slotted stators. The teeth of the stator are opened out and the entire stator is aligned horizontally. The NWS/K chain winder can wind up to 4 opened out stators in parallel. In turn, each stator can be wound with 3 wires (3 phases) in parallel. The components can be changed directly in the winding position, either via a loading shuttle or via a circulating workpiece carrier system. The connection wires can be connected above and below via the over-axis swivelling wire guide.