10. May 2017
Spiral belts impress in dewatering, transport or drying processes wherever a seam can cause marks in the product or even fail due to mechanical stress. To be able to offer these customers a “Made in Germany” solution with proven quality, GKD installed a complete production environment for spiral belt production in line with the latest standards. The individual spirals are now also produced by GKD and the application-specific fixing process is performed in-house. Depending on the intended application, the company manufactures them from round or flat wires and, on request, can equip them with antistatic properties or improved abrasion resistance. Customer-specific thermosetting lends the spirals the necessary transverse and tracking stability. For use in a double-belt dryer with magnetic support system, they are equipped with an additional seam wire made of magnetic steel, which further increases transverse stability. GKD adjusts the air permeability of the screens depending on the application by inserting specially formed fill wires into the spirals. The aperture of spiral belts corresponds to GKD mesh type 1003, a proven material for sludge dewatering. Larger apertures are selected for dryer applications. The tailored properties of a high-performance spiral belt are rounded off by perfectly matched thermosetting processes, cutting to size and edge sealing on both sides.