Continuos spirals type S


The continuous spirals “S” type are very robust and thus suitable for handling heavy transport

They are made through a cold-working process we have patented

This system reduces taper and improves mechanical characteristics, giving the spiral a more uniform thickness between the base and the ridge, resulting in dimension accuracy so as to guarantee high durability and resistance of the continuous spirals type “S”


  • Normal steel S235JR e S355JR
  • Stainless steel (Aisi 304, Aisi 316 and all the series 300).

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


  • Purification (water treatment, sludge treatment machines, sand traps)
  • Flue accessories (heating, pellet burners)
  • Chemical and pharmaceutical
  • 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


  • Section of the slightly tapered blade.
  • Sizing precision


D 50 60 70 80 100 120 130 140 150 180 200 220 250 280 300 350 400 450 500 550 600 650 700
S from 3 to 12 mm

D = outer diameter S = thickness