Paper Machine Soft Hard Calender Roll

The calender roll is used to increase the gloss of paper.The calendering process is that calender machine clamp the paper web through the calender top and bottom roll under high temperature and high pressure condition.

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Product Description

Paper Machine Calender Roll

This can make the paper fibers tighter and the surface smoother, thereby improving the printing quality and writing experience of the paper. At the same time, calendering can reduce surface burrs and particles on paper, making it smoother and neater.

Function of 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. ‌

Calender Roll for Soft Calnder Machine

soft calender machine roll 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 ℃.

Technical Parameter

Roller Diameter	300-1000mm
Roller Length	1500-6500mm
Running Speed	300-500m/min
Coating Thickness	20-30mm
Material	Alloy Steel
Coating	Tungsten Carbide
Surface Finish	Ra0.01