A. Roll forming craftwork Decoiler---Guide, flatting---Roll forming---cutting -to -length( hole punching)---collection table B. process flow diagram C. Equipment structure It is making up of decoiler, guide rack, roll forming, correction, cutting-to-length( hole-punching), collection table, electrical control system etc. unit performance Machine capacity :width≤550mm, thickness:1-3mm Product speed: 0-15m/min Total power: about35.5kw Occupy ground area: length 20m x width 3m D. Each part main parameter: Decoiler: capacity:3T Guide Rack: two pairs of lever rollers and four pairs of standing rollers. Flatting number: 9 sets 3:main forming machine Rack: dragon type, material:HT200 Roll forming rack: 14 sets The diameter of the roller axis:φ80mm, roller surface:550mm Material: 40Cr quenching treatment HB280 Drive type: every rack has one gear power distribution box. Main power: 30kw frequency conversion, ZQ500 reducer Material:GCr15, Quenching,Hardness:HRC58-62º auxiliary roller rack: 4 sets Adjust part: Turkey emendation type(three-dimensional emendation) 5cutting-to-length E. The delivery time: 60days