Endless spiralsEndless spirals are rolled out of one single piece. In lengths of 3.000 mm and made of the following materials: S235JRG2 and stainless steel 304, with a left or a right pitch. The following table shows the standard sizes of endless spirals. Endless spirals (parameters in mm ) Additional diameters, shaft sizes, or material thicknesses are available on demand. [email protected] www.bechtel-wuppertal.de