MATERIALS
The materials used for their manufacture may be carbon steel, stainless steel, wear-resistant steel, etc.
The spirals are manufactured individually from steel plate and are shaped into a spiral or a helix according to the diameter and pitch required so that they fit into helicoidal conveyor tubes.
Spirals can be provided in various types of materials*, in different thicknesses, varying from 2 to 50 mm, and of various diameters and pitches. The spiral is of the same thickness as the one in the transverse section (1).
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