Thin Film Evaporator

Special solutions for demanding tasks

The thin-film evaporator made from high-quality materials delivers the highest performance and can separate even the most sensitive products in the smallest quantities.

Depending on the manufacturing and product requirements, we develop tailor-made distillation modules for each of our customers. Their core – individually selected evaporators with perfectly adapted rotor types.

The right type of rotor for every task

We have a variety of different rotor and wiper blades. Through individual consultation we will find the perfect solution for your application.


Fields of Application

Our thin-film evaporators can be used both for concentration and for the purification of valuable substances. Exactly adapted to your requirements, the devices are particularly suitable for the following service areas:

  • Concentrate temperature sensitive products
  • Concentrate viscous media
  • Concentration of pseudoplastic media
  • Distilling off low boilers from recyclables
  • Purification by distilling off valuable products from high-boiling components
  • Special applications such as: Rectifier reboiler
  • Drying


  • Individual selection and adaptation of the optimal rotor type
  • High evaporation rates
  • Short residence time of the product
  • Gentle evaporation
  • Good heat transfer even with highly viscous or heavily soiled media
  • No additional lubrication required
  • Reduced maintenance
  • Shorter downtime and assembly times during maintenance / inspection
  • No corrosion by using suitable materials
  • Turbulent heat and mass transfer through the thin, constantly renewed film


The thin-film evaporator consists of a cylindrical, mechanically precisely machined heating surface with external heating and an internal rotor. The substance mixture is distributed over the circumference of the head by means of a rotating distributor system and flows downwards on an evaporator wall heated from the outside with steam or thermal oil. In this case, a uniform distribution and a liquid film is mechanically generated by means of wiper elements. Vortexes form highly turbulent heat transfer zones on the wiper blades, which, in addition to the good heat transfer achieved, also ensure a constant renewal of the product coming into contact with the heating surface. The result is a gentle evaporation process, which ensures product quality through the shortest possible contact with the heating surface and thus minimized temperature stress.


GIG Karasek - AICHHORN Wolfgang

Sales Contact

Head of Sales
GIG Karasek - AUSTALLER Bernd

Technical Contact

Bernd Austaller
ThinFilm-/ShortPath Technology