Rubber calendar is composed of two or two upper rolls, according to a certain form arrangement, under a certain temperature, press the rubber or plastic into a certain thickness and superficial shape film, and hang the rubber on the textile fiber curtain canvas or steel wire curtain cloth. Ordinary calendar is mainly composed of bowl, rack, cylinder, adjusting device, cylinder hot adjusting device, transmission device, lubrication system and control system, etc. separately. Precision calendar also has the main spare parts and equipment of ordinary calendar, increased the guarantee of rolling precision installation.