- 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 solutions
- Roll services
- Service agreements
- Automation services
- Valmet's way to serve
- Service Centers
- Test for technical bulletin
- Automation for board and paper
- Board and paper
- Recycled fiber
- OCC lines
- Screening
- Coarse screening
Coarse screening
Valmet’s coarse screens are designed for all coarse screening applications in recycled fiber processing and stock preparation. Coarse screens effectively remove heavy, light and coarse particles and contaminants from pulp, protecting subsequent process equipment from potential damage.
Vertical coarse screens are designed for up to 4 percent consistency, utilizing rotating basket technology with continuous reject removal. The rotating basket minimizes wear because the centrifugal force involved reduces contact between harmful particles and the screen basket. Valmet’s coarse screens’ optimal operating principle also yields low energy consumption.
Key benefits
Excellent screening performance
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Savings throughout the lifecycle
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Lower screening system investment cost
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