Sheet metal roll forming section common to other high-volume production workpieces. More on the use of the continuous forming roller can be rolling out a number of thin wall, light weight, stiffness and shape Roll forming machine of the complex workpiece profile section (Figure 1). Rolling process with the order can wash, from the shape, roll, welding and other process equipment linked to form assembly-line, so a high efficiency, low cost, is widely used in modern processing products, forming machineand vigorously promoted special processing technology. Such as a bicycle wheel rim production, water tubes, plastic keel production, Bowen plate production and widely used abroad, the production of stainless steel window  Roll former frames.