How many kinds of rolling mills and rollers are there?

Rolling mills are divided into: two-high mill, three-high mill, HC mill, eccentric eight-high mill, six-high mill, multi-high mill, universal mill, disc piercer and ball mill.

Rollers are divided into hot rollers and cold rollers. Hot rolls are divided into cast steel rolls and cast iron rolls, and commonly used materials are 55mn2, 55cr, 60crmnmo and 60simnmo. Cold rolls are divided into 9Cr, 9Cr2, 9Crv, 8CrMoV, etc.