Automatic belling machine UNIBELL

for PVC pipesfor extrusion lines

A range of belling machines for PVC-U pipes that offer several configuration options and equipment to meet market demands in terms of production capacity for plastic pipe extrusion systems. Models up to 400 mm (16’’) are fully electric. Versions with hot air oven, oven with ceramic elements, shortwave oven, and air or / water socket cooling system. Machines can be configured with one or two heating stations. Base version. One heating station with enhanced hot air oven and pre-cooled compressed air socket cooling system. J version. Uses Sica’s advanced and exclusive patented socket cooling and forming systems. These systems allow machines configured for high production capacity and smaller dimensions. Heating system. Unibell J belling machines use ovens with shortwave infrared rays (IR-SW ovens), which are particularly effective in heating pipes with mid to high wall-thickness. IR-SW ovens regulate emission of the heating power with directly control of the temperature that is constantly measured on the surface of the pipe. Cooling system. Unibell J belling machines use a Sica patented socket cooling system with compressed air cooling fluid, treated with a special internal refrigeration cycle. JW PLUS versions boast greater production capacity, with a socket cooling system that is enhanced further than the J version and uses compressed air mixed with vaporized water as cooling fluid. R version. UNIBELL belling machines intended for production with mechanical mandrel can also be configured in an R version for the Rieber forming process.