The Calender is a type of mechanical equipment used for the calendering processing of materials such as plastics, rubber, paper, and textiles. It applies pressure and heat to the materials through a series of rotating rollers, causing them to stretch, thin, laminate, or undergo surface treatment, thereby achieving the desired thickness, surface smoothness, or composite structure. The speed, temperature, and gap of the rollers can be precisely controlled according to the processing requirements.
The rubber calender is one of the fundamental pieces of equipment in the processing of rubber and plastic products. Among rubber and plastic machinery, the calender is classified as a heavy-duty, high-precision machine. The basic structure of a rubber calender is very similar to that of a plastic calender, and they operate on essentially the same principles. However, since many rubber products are composite materials containing cords and steel wires, the structure of a rubber calender is more complex, its applications are broader, and there are more varieties. Rubber calenders are primarily used for sheeting rubber compounds, coating fabrics or steel cord fabrics with rubber, laminating rubber sheets, shaping rubber preforms, and applying separator films to tire cord layers.