Detailed Description Main Technical Index 1.Rolling speed: 12-15m/minnot including cutting and punching speed 2.Roller group: 16 groups ,one of which is punched hole 3.Roller material: After finishing the use of steel hardening by Cr12, surface treatment HRC58-62 nigrescence 4.Shaft material: 45 steel after dealing with to enhance the intension of the roller. 56mm 5.Main motor power:5.5Kw 6.Hydraulic station power:5.5Kw 7.Hydraulic pressure: 20Mpa c purlin roll forming machine purline forming machine z&c purlin forming machine