Technical parameter of product 1.outer diameter of rough tube:76-159mm 2.wall thickness of rough tube:6-20mm 3.length of rough tube:2500-6000mm 4.outer diameter of finished products:60-133mm 5.wall thickness of finished products:2.5-18mm 6.Max.coefficient of elongation:stainless steel less than 4 Technical parameter of machine. 1.crank radius:550mm 2.diameter of roller:490mm 3.efficient length of groove:960mm 4.round trip length of operating frame:1103mm 5.round trip frequency of operating frame:55-70 times/min 6.feeding amount:3-8mm 7.swing angle of rough tube:41-52 degree 8.mandrel crack:detection device Have 9.material loading method:Side loading 10.continuous rolling;No 11.feeding and turning method: Single feeding/double turning 12.rolling lines:single 13.power of main motor DC: 250KW