- Recycled fiber
- Stock preparation
- Approach flow system
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Board and paper machines
- New lines
- Rebuilds
- Approach flow system
- Headbox
- Forming
- Pressing
- Drying
- Process ventilation
- Sizing
- Coating
- Chemical systems
- Coating drying
- Calendering
- Reeling
- Winders and roll handling
- Pilot trials
- Paper and board grades
- Sustainable performance
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Services for board and paper
- Spare parts
- Maintenance and shutdown services
- Outsourcing services
- Production consumables
- Process support and optimization
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Process and automation upgrades
- Paper machine automation services
- Automation upgrades and roadmapping services
- Process improvements
- Industrial internet and remote solutions
- Roll services
- Service agreements
- Automation services
- Valmet's way to serve
- Service Centers
- Automation for board and paper
- Board and paper
- Board and paper machines
- Coating
- Film coating
Film application at its best

OptiSizer Film - for coating and sizing
OptiSizer Film, Valmet’s film coating solution, offers a functional and innovative design, based on know-how and experience gained through more than 200 successful new film sizer installations and rebuilds all over the world. The design of OptiSizer 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.
OptiSizer Film provides:
In film coating application, a thin film of 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.
Vast process and technological expertise
- Most advanced application
- Experienced process optimization support
Multi-purpose technology
- Vast reference base
- Wide application area for both sizing and coating
Easy maintenance and operation
- Easy to adjust
- High quality materials and components
Steep start-up curve
- Full workshop pre-testing
- Fully equipped sizer (nip rolls, integrated operator panel and control unit, applicator beams, internal piping, tubing & cabling, hydraulic and pneumatic components, frames and walkways)
- Professional Valmet team helping with the whole project
Multiple production and speed world records set on a number of production lines serve as the best evidence of OptiSizer’s capabilities.