Used 6Hi reversible  cold rolling mill.It was producted in 2006,and it is closed down in 2015.

Unit process parameter

Raw material: Mild steel Q195、Q235、08Al、SPHC、SPHD

Raw material strip width×strip thickness:800～1270×1.5～3.5mm

Finished product strip width×strip thickness 800～1270×0.20～1.5mm

Coil weight Max               25.0t

Rolling pressure              20000KN

Threading speed               0.5m/s

Rolling speed(max.)        900m/min

Working roll                  Φ420/380×1450mm

Intermediate roll            Φ480/430×1400mm

Supporting roll              Φ1350/1280×1350mm

Intermediate roll moving distance   330mm

Opening：                           25mm

Max torque：                        150KN·M

Bending force of work roll ：      +400KN

Unilateral bending force of intermediate roll： +400KN；-300KN

Main drive motor                    2×2000KW  

Max Coiling tension               150KN

Coiling motor                       2×1250KW  

Uncoil speed                      6m/s

Uncoil tension                      75KN

Uncoil motor                        453KW  

Reduction method                  Hydraulic pressure reduction

Product precision                   ≤±1.5%h