Four peaks 840 the roof compression equipment technical parameters Model :30 -280-840 length × width × height 5500mm x 1300mm x 1400mm Machine weight: 2.2 tons forming shaft: diameter 68mm 45 # a quenched and molding wheel: material 45 # forged hard chrome plating drive way: sprocket, chain motor: 3KW the molding row number: 13-row fully automated computer fixed length cutting system: pump station motor: 3KW four shear mold: Gr12 Forming speed :8-10m / min to suppress thickness: 0.2-0.8mm repression width: 1000m