OptiSizer Film - sizer with film application at its best

OptiSizer Film - sizer with film application - offers a functional and innovative design, based on know-how and experience gained through over 200 successful new film sizer installations and rebuilds all over the world. The design of OptiSizer Film has evolved for simple and reliable solutions resulting in easy operation and installation and fast initial start-up, which also makes it the perfect choice for rebuild projects. 

A thin film of size or coating color is applied to the surface of an applicator roll. The film is transferred to both sides of the paper sheet in a nip formed between two transfer rolls. The film application method provides excellent runnability. Simultaneous application on both sides of the sheet also saves space, which provides a competitive advantage in the case of high-capacity investments. 

Multiple production and speed world records set on a number of production lines serve as the best evidence of OptiSizer Film’s capabilities.

Main benefits:

Multi-purpose technology

  • Most advanced film application method with straight composite beam
  • Wide application area - size amount, solids content, speed etc.
  • High-quality components

Steep start-up curve

  • Full workshop pretesting to ensure fast installation and excellent start-up
  • Fully equipped sizer
  • Professional Valmet team to support high performance

Easy operation & maintenance

  • Precise nip loads for exact size amounts
  • Easy beam adjustment
  • Versatile controls

Process know-how & references

  • Experienced process optimization know-how
  • Largest reference base

We invite you to carry out your size application trials to Järvenpää, Finland at Paper Technology Center on the world's fastest and most modern pilot sizing and coating machine.