Roll diameter (mm): 320 380,420 495,520 610,630 700 Roll body length (mm): 650,800,800,850 Rolling force (KN): 500,2000,3000,5500 Rolling moment (KN * M): 50,120,200,400 technical note: 1. Roll gap adjustment device for the worm drive turbine, hydraulic motor drive, operating side and the drive side can be adjusted independently. 2. Mill lock by lock disc spring, hydraulic opening. 3. Roll balanced by damping body balance. 4. Bearing lubrication oil lubrication to dry.