Abstract: In a method for producing helical coils, in particular for coil screens, a filament is conveyed in a filament conveying direction through a first channel portion of a first rotation body, and subsequently conveyed through a second channel portion of a second rotation body which rotates synchronously with the first rotation body. The filament is subsequently wound around a protruding winding mandrel, such that a helical coil is produced from the filament by a continuous feed of the windings of the filament wound around the winding mandrel. A heated heating fluid flows with an excess pressure through the first channel portion and the second channel portion, arranged downstream, and in the process heats the filament conveyed through the first channel portion and subsequently through the second channel portion. The filament emerging from the second channel portion is deformed, using a deformation apparatus, prior to winding onto the winding mandrel.