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Screw conveyors / Screw blades

Screw flights or screw conveyors are mostly used for transport/conveying dusty, granular and fibrous materials. Screw conveyors can also be used as mixers during conveyance, for example in concrete conveying.


A screw conveyor usually lies in a steel tub and transports the bulk material over a distance of up to 60 metres.

The screw conveyor consists of a helical screw thread and a so-called screw conveyor with a drive and a final bearing shaft end.

We can offer you a wide range of designs such as simple blades, serrated blades, conical blades, blades with irregular pitch, with and without shaft, etc.

Materials and dimensions

  • Wear resistant steel like HARDOX
  • Structural steels S355JR (St52), S235JR (ST37)
  • Stainless steel
  • Other materials such as C45, 42CrMo4, etc. on request.

We have production possibilities for right- and left-hand spirals with the following dimensions:

  • Outer Ø D: 30 ... ~3500 mm
  • Material thickness s: 1 ... 40 mm (depending on primary material)

Examples of screw conveyors

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