Each TRK/D saw model by Sica (Alfonsine, Ravenna, Italy), specifically for cutting in PVC, PP and HDPE corrugated pipe extrusion lines, can be equipped with floating auto-centering cam cutting system. The system guarantees automatic compensation for the elastic longitudinal compression and expansion of the extruded corrugated pipe for a perfect final cutting position with respect to the desired zone. The system is completely mechanical with easy adjustments, and allows for perfectly perpendicular single or double cuts, not only in the center of pipe grooves but also in positions difficult to achieve with traditional systems (such as the corrugated ridges).