- 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
- Automation for board and paper
- Board and paper
- Recycled fiber
- OCC lines
- Dispersion and refining
Valmet dispersion and refining concepts provide high performance together with improved pulp strength and homogeneity
Optimal dispersion technology improves pulp quality by reducing particle size of undesirable contaminants affecting the downstream processes in recovered fiber systems. In demanding OCC processes, dispersion also improves fiber strength and machine runnability.
Accurate refining provides smooth board machine running and determines quality and final product properties. Valmet’s OptiFiner family includes both conventional conical and double-disc refiners, securing stable operation and a uniform refining result.
Dispersion
The optimized design of the disperger fillings provides wide power adjustability, with their conical form providing a larger processing area and longer treatment time than other disperger types
Refining
Valmet’s refining experience dates back to the early 1950s, with both conventional conical and double-disc refiners.