Cold Rolling Mill is the machine to make cold rolled coils, reducing coil thickness.
According to coil material, width, thickness reduction and production, we calculate the cold rolling process, such as rolling force, number of rolling passes, rolling speed.
Take CRM450 rolling mill as example, it can deal with 350mm x 3mm steel coil, rolling force 500T and recoiling tension 6T, rolling speed max 180mpm, monthly production for 1mm thickness can be 1000T-1500T.
The roller material can be 9Cr2Mo, Cr12MoV, etc.
In Middle East market, usually black steel coil directly go to cold rolling mill, the thickness reducing degree should be properly controlled within 50-60% by 2 or 3 rolling passes.