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Improving extended nip press (ENP) performance and blanket life
Since 1980 the Extended Nip Press (ENP) has performed well. But there have been improvements since its initial entry in the market. These include prolonging the blanket/belt and felt life and improving sheet properties with oil lubrication showers, belt brushes, belt wipes, loading piston upgrades and geometry optimizations.
Insights ● Article
Supercalender process conditions, variables and grinding
Process variables affecting SC paper production, process conditions affecting supercalender polymer roll life and calender roll grinding recommendations.
Insights ● Article
Larger jumbo rolls increase pressroom breaks, a case study
Larger wound roll sizes dramatically increased press breaks for an LWC mill's customer. Process analysis and Valmet small fixes provided a temporary solution.
Insights ● Article
Improve roll asset management, reduce risk, lower costs (webinar)
A Valmet webinar reviewed the roll agreement concept including case studies of mill achievements. The recorded webinar is described here and available to view.
Insights ● Article
Safe and efficient calender roll removal - four methods
These methods of calender roll removal are recommended by Valmet. Other methods may be used, depending on style/size of calender & available lifting equipment.
Insights ● Article
Forming section troubleshooting checklist extends wire life
Wire life below expectations is of major concern to mill management. These tips are presented in a check list format for quick reference if the need arises.
Insights ● Article
Pulp washing system fundamentals and design (webinar)
Operating the pulp washing system efficiently requires that fiberline operators and superintendents understand the fundamentals of the washing system.
Insights ● Article
5 tips to improve under-machine pulper production efficiency
With thousands of installations all over the world, under-machine pulpers are often overlooked in the stock preparation area due to their long equipment life.
Insights ● Article
Ceramic press roll conditioning tips – when, how and why
Over time, the surface finish of the roll starts to become smooth and glossy and may lead to issues with particles getting past the doctor blade or higher draws
Insights ● Article
Reel service case study - Faulty turnups and mechanical audit
A U.S. mill was having problems with faulty turnups. Valmet personnel arrived at the mill, performed a mechanical audit and made adjustments to fix the problem.
Insights ● Article
