Three-roll calender is a machine that uses two or more rollers arranged in a specific pattern to press and stretch rubber or plastic into sheets of a certain thickness and surface shape at a specific temperature. It can also be used to coat fiberglass or steel cord fabrics with adhesive. Calenders are classified according to the number of rollers, such as two-roll, three-roll, four-roll, and five-roll calenders. They are mainly used for pressing rubber sheets and for double-sided adhesive application and rubbing of textiles.