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Cranes contain numerous fastening elements and construction parts, which are subjected to constant climatic and therefore highly-corrosive influences. Damage due to corrosion as well as sudden material failure of the often high-tensile components need to be prevented.

Exemplary components

The typically high-tensile steel fasteners used in cranes are fitted in a range of different designs and geometries.


  • Corrosion protection (720 h as per DIN EN ISO 9227)
  • Colouring
  • Defined coefficients of friction


With its zinc flake technology Dörken MKS offers a high-performance, chromium(VI)-free corrosion protection system that extends the lifetime of the steel parts installed in the crane and helps preserve value. With comparatively extremely thin coats comprising base coat and topcoat a long-lasting cathodic corrosion protection can be provided. A further advantage: no hydrogen is involved in the coating process. Particularly with regard to high-tensile steels of up to > 1,000 N/mm² this means that application-related hydrogen-induced stress corrosion cracking is prevented and the long-term function of the coated components is ensured.