Incubating and hatching eggs require lightweight multistory incubators. These hatching incubators must provide a hygienic and healthy environment for the production of the healthy eggs. Conveyor belts are an important element in order to remove the dirt from the hygienic environment of incubators. Polypropylene (PP) sheets are widely used in the production of these conveyor belts and manufactured in 1mm thickness and have different dimensions and can be custom made.