Cold Tandem Rolling Mill

The tandem mill of cold strip steel usually consists of 3 stands, 4stands or 5 stands, therefore, it can complete the whole rolling process just in one pass. Pickled coils of the common carbon steel, low alloy steel coming from hot-rolling production are rolled into the coil strip with required thickness, flatness and finishing through one pass under normal ambient condition.It is possible to keep production running continuously without stop when a welding machine and a looper are put into the line between the pay-off reel and the first stand. The tail of a coil is welded to the head of another coil when the coil is used up and in the meanwhile, the strip stored in the looper can keep the mill rolling at a certain speed without stop. ... Specification Products 480mm,4 stands 680mm,4 stands 850mm,4 stands Material to be rolled Q195.Q235 Q195.Q235 08AL.Q235,20 Input Material Thickness(mm) 2.5-2.75mm 2-2075mm 2-4.0mm Width(mm) 350mm 550mm 400-700mm Diameter(mm) φ1400/φ500 φ1500φ508 φ1600φ508 Weight of coil 3T 6T 7T Finished Strips Thickness(mm) 0.4-0.6mm 0.4-1.0mm 0.4-1.0mm Width(mm) 350mm 500mm 400-700mm Diameter(mm) φ1400φ500 φ1500φ508 φ1600φ508 Weight of coil 3T 6T 7T Max rolling force 3500 KN 4200 KN 7000 KN Max rolling velocity 5m/s 5m/s 7m/s Type of mill 4 High 4 High 4 High Type of rolling Continuous Continuous Coil to Coil Data of working roll φ200φ190*480 φ200φ190*680 φ260φ240*850 Data of backup roll φ550φ530*430 φ650tφ630*630 φ800φ760*800