LG450-H cold rolling mill Technical parameter of product 1.outer diameter of rough tube:250-480mm 2.wall thickness of rough tube:10-35mm 3.length of rough tube:3000-8000mm 4.outer diameter of finished products:219-450mm 5.wall thickness of finished products:6-28mm 6.Max.coefficient of elongation:steel less than 4 Technical parameter of machine. 1.crank radius:600mm 2.diameter of roller:1128/928mm 3.Efficient length of groove:960mm 4.round trip length of operating frame:1208mm 5.round trip frequency of operating frame: 20-50times/min 6.Feeding amount:3-12mm 7.swing angle of rough tube:41-52 degree 8.material loading method:Side loading 9.continuous rolling:No 10.Feeding and turning method: Single feeding ,double turning 11.Rolling lines:single 12.power of main motor DC: 950KW 820rpm 440V