Continuos spirals type R


The “R” spiral represents the most economical and functional transportation system

It is the ideal solution for transporting large quantities in the shortest possible time

BERTUZZO produces a wide range of CONTINUOUS SPIRALS  “R” type, made of carbon, stainless and Corten steels, with minimum thickness of 3 mm up to 8 mm maximum, with minimum outer diameter of 800 mm up to 400 mm maximum

BERTUZZO has accumulated 50 years’ experience in the production of continuous spirals type “R”, giving the product a remarkable quality and dimensional accuracy, thus reducing the time of installation of the continuous spiral tube

We have a wide range of continuous spirals “R” type in stock ready for delivery.


  • Normal steel S235JR e S355JR.
  • Stainless steel Aisi 304.
  • Corten steel

The spiral type “ R” finds application in various agricultural and industrial activities, such as:

  •  Concrete-Mixing Plant (mixers, screw conveyors)
  • Earthmoving (augers, helical rods)
  • Animal husbandry (silos, extractors, dryers)
  • Agricultural machinery (manure spreaders, cutter-mixer wagons, platforms, heads, tanks, salt trucks, snow blowers, balers)
  • Milling industry (mixers, kneads, flour dusters)
  • Oenology (crushers, crusher-destemmers, destemmers)
  • Oil industry (washing machines, crushers, kneads)
  • Dairy industry (stretching machines, ice cream machines, choppers)
  • Packing (bagging)
  • Machine tools (lathes, milling machines, machining centers)
  • Foundry


  • Tapered blade section.
  • Accuracy in dimensions.
  • Standard lenght of bars: 3 meters.
  • Different lengths available upon request.


D 80 90 100 110 120 130 140 150 160 180 200 210 220 230 240 250 280 300 315 350 400
S from 3 to 8 mm

D = outer diameter S = thickness