- Recycled fiber
- Stock preparation
- Board and paper machines
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Services for board and paper
- Spare and process parts
- Workshop and roll services
- Paper machine clothing and filter fabrics
- Maintenance development and outsourcing
- Field services
- Process upgrades
- Process and production optimization
- Service Agreements
- Industrial Internet solutions
- Automation services
- Valmet's way to serve
- Service Centers
- Automation for board and paper
- Industrial Internet
- Service Centers
- References
- Board and paper news and stories
- Search for products & services
- Sustainable board and paper production
- Board and paper
- Stock preparation
- Approach flow system
- Machine screening
Machine screening

The optimal solution for high screening capacity and efficiency
OptiScreen machine screens ensure risk-free operation of paper, board and tissue machines. The outflow-type machine screen, with its innovative rotor and foil designs, ensures efficient impurity removal.
The OptiScreen technology’s screening efficiency is based on the design features of the outflow-type screen and the interaction of the patented rotor and foil. Pulsations are minimized by the overlapping and inclined positioning of the foils combined with the foil shape and the screen body’s profiled electropolished surfaces. Valmet’s machine screening features a robust outflow design, sturdy rotor and foil support, and durable screen baskets.
Available in vertical and horizontal designs, the machine screens can be operated with both slotted and hole screen baskets.
Key benefits |
High screening capacity and efficiency
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High availability and reliable operation
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