.Our company is the professional manufacturer to design and manufacture the integrated non-standard equipments; with the powerful technical strength and the complete processing measures, we are at the leading place in this field. The I type strengthening machine adopts the combination of the 12-group straightening wheels; the 12-group straightening wheels compose the six positions, the upper and lower wheels compose a combination; each group straightening wheel has the cranking wheel, the twelve cranking wheels are used to rotate the angle of the straightening wheels, it is best to adjust the angle between 30° and 35°; the actual measurement requires the joint surface of the upper and lower wheels and the tube external diameter should be as big as possible; do not let the cranking wheels touch the edge of the straightening wheels; after the adjustment, tighten the screws; this device is also one of our companys manufacturing equipments. This straightening machine has the wide application scope, it can process the nonferrous metal and stainless steel sheet-wall tubes, the various radiator tubes, auto water-tank tubes, and also can straighten before flattening process; the tube diameter range is Φ4Φ24, the wall thickness is 0.3~1.00mm, and the speed is about 60m/mi; and the device has the characteristics of the good straightening effect and the high work efficiency.