... 3.1. The mill consists mainly for rolls, frame, bearing, roll nip adjusting, screw, heating and cooling device, emergency stop, ... and wear-resistant. The working temperature of the bored roll is controllable by steam, cooling water or oil that ... 160250300360400450560Working length of rolls (mm)320620750900100012001530Working linear speed of front roll(m/min)815.115.116.2518.6524.527.7Max gap ( ...