Paper Machine Soft Hard Calender Roll

Improve the surface performance of paper:Squeezing and polishing paper web; compress paper fiber structure , filling surface, fills in surface irregularities, and significantly improves the smoothness and glossiness of the paper. ‌

Enhance the physical properties of paper:Accurately regulate the uniformity of paper thickness to ensure that the physical indicators of the finished paper meet the standards, while promoting fiber plasticization through high-temperature rollers to enhance the stiffness and strength of the paper. ‌

Soft calender machine consists of a cold hard cast iron calender roll that can be heated and temperature adjusted, and a soft calender roll that can be controlled to have a medium to high outer coating of elastic material. The surface of the hard hot calender roll is a special surface hard coating with a thickness of about 150μm and hardness of 1000HV. The surface hardness of the soft calender roll is generally 91SHD and the resistance is 105 ℃.