FIELD: mechanical engineering, may be used in pulp-and-paper industry. SUBSTANCE: calender roll has jacket and core with inner cavity. Jacket is formed by centrifugal casting and has outer layer of white iron modified with 0.1-0.3% by weight of ferrocerium and inner layer of spheroidal graphite cast iron. Outer and inner layers thickness ratio is (1:1) - (1:10). Core inner cavity has variable diameter along roll length, which may be determined by ratio recited in Specification. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 1 dwg
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