the frame section:
It is achieved by the whole steel welded structure, with high strength ,it can be satisfied with the bending of many kinds of profile steel
the upper roller device:
It is composed of the upper roller , the connection plate, the slide block, gland and so on. The upper roller is following the axis rise and fall to pressing the workpiece, material come into being plastic deformation, finishing the bending of profile through the action of hydro-cylinder.
the lower roller device:
It is composed of the two lower roller , double row bearings tune . The two lower roller is achieved by axis, it is also the positive power.
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