Shaftless ribbon is restricted in terms of material, dimensions and versions. Diameters from 80 to 600 mm in steel and stainless steel The ribbon can be constructed with the ‘inner spiral’, also known as an ‘auxiliary spiral’ or ‘insert’. To empty the sludge tank, the spirals are weighted by doubling or tripling the ribbon so that the torque needed to empty the tank can be transferred to the ribbon.
Carbon Steels According to EN 10027-2
1.0038 (40 B), 10045 (50 B), 1.0553 (50 C),
Information required when requesting rolled spiral
Diameter / Pitch R or L (Hand) / Bore / Thickness / Type of material