As important consumable parts of rolling mill and skinpass mill, the functions is to make the metal rolling material plastic deformation, there are work roll, intermediate roll, backup rolls, etc. The fabrication processes of the roll include forging, rough machining, conditioning, non-destructive inspection, finishing machining, quenching and grinding, thus the rolls have the characteristics of high surface hardness, excellent wear and heat resistance, and high accuracy; the crown surface profile of the roll is machined by precision CNC roll grinder. Thanks to deep quenching, the rolls can be reused after regrinding until to the limit size. The rolls are used for cold rolling, hot rolling mill and skinpass mill of metallurgical black or non-ferrous metal.
-- Roll diameter: Ø450~1250mm
-- Barrel length: 450~1650mm
-- Barrel profile: micro-crowned (2mm) (roll diameter≤1100mm, total roll length≤2800mm)
-- Steel grades: cast iron (alloy ductile iron, high chromium iron); cast steel (alloy cast steel, high speed steel, high chromium steel); forged steel (alloy steel forgings, high speed steel, semi-steel)
-- Surface hardness: HS55~80 (roll for cold rolling and hot rolling), journal hardness HS35~50
-- Work roll/intermediate roll/backup roll: Ø140~550×450~1450/Ø175~450×500~1450/Ø450~1250×450~1450