The surfaces of the FlexiTherm heated rolls can be provided with polished, extremely wear-resistant and doctorable coatings. Voith offers these coatings on the CeraCal and CeraCal Plus rolls. Depending on the technological requirements, rolls of various designs are used in glazing calenders.
The same is true of the heating media; essentially water and thermal oils predominate here. Heated rolls can also be combined with additional external heating devices (inductive heating or ModuleTherm hot air units).
Heated rolls are responsible for uniform surface temperature in glazing calenders over the entire roll width.