Haul-off and saw

The "Combo 110K" machines for the pulling and swarfless cutting of plastics pipes, PVC-U included, which Sica, headquartered in Alfonsine (Ravenna, Italy), is displaying in operation at PLAST 2012, have a single frame and electric drive unit and are available in two versions: 2X1 for mono-extrusion (1 haul-off and 1 cutter) and 2X2 for bi-extrusion (2 haul-offs and 2 cutters in parallel).
Each haul-off is equipped with 2 crawler tracks: the upper tilts and can be pneumatically positioned and the lower one can be adjusted in height; the catenaries are made with neutral vulcanized rubber plugs with high friction and low wear but a belt version is also available for material particularly prone to deformation or marring. The constant pulling power at different extrusion speeds is ensured by vector drives controlled in a closed loop via speed transducers.