Suction device for drying at least one plastic strand

A suction device for drying at least one plastic strand, comprising a suction housing, consisting of a top side, a bottom side and a several lateral surfaces, the top side having an inlet opening and one of the other surfaces having an outlet opening made therein for the flow of a drying medium therethrough, a screening element with a drying area which has through apertures made therein in a distributed manner and which has a base area of a maximum length and a maximum width, each through aperture having an aperture cross-sectional area, and the sum of the aperture cross-sectional areas of all through apertures of the screening element together forming a total aperture cross-sectional area, wherein the screening element is arranged at the top and with its drying area above the inlet opening of the suction housing, wherein the at least one plastic strand is moved in a process direction on the screening element, wherein the process direction is aligned in a longitudinal direction of the screening element, wherein the length of the drying area is at least 150 mm and a ratio of total aperture cross-sectional area of the through apertures to the base area of the drying area is in the range of at least one of between 30% and 45%, and between 35% and 40%, of the drying area.