ABSTRACT
Calenders are used in the rubber industry primarily to produce rubber compound webs and sheets of various thicknesses, coating textiles or other supporting materials with thin rubber sheets, or frictioning fabrics with rubber compounds. Calenders are generally distinguished by the number of rolls installed in the calender frame and by their geometrical arrangement. This chapter discusses the constructional components that are integrated into this machine. Modern high-performance calenders are equipped with a large variety of devices that influence the quality of the calendered products decisively. State-of-the-art calenders are equipped with peripherally drilled heating/cooling passages under the roll surface. The design of the roll gap-adjusting devices is determined by the roll-separating forces produced under production conditions. Preloading devices are provided to eliminate clearance in the bearings and in the roll gap-adjusting device to fix the rolls in their working positions.
