Such rolls are produced out of special alloy chilled cast iron with excellent surface finish, wear resistance and corrosion resistance. Depending on the necessities of cooling or stream heating, core of the rolls can either be smooth cast (and thoroughly cleaned) or machine bored as desired by our customers. The chill depth is generally restricted in the 10-15 mm range. However, on special request, higher chill depth can also be provide. Depending on the use, the barrel surface hardness varies from 60/65 Shore C to 70/75 Shore C range. Full graphitization of the inner layer is ensured to import maximum toughness. Rolls can be supplied in ground condition for Cracker, Grinder Mills etc., for Rubber Refiner and Calender Machines as well as for Machines as well as for Paper Calender Machines. All hollow rolls are pressure tested hydraulically.
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