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The mechanism, need for and effect of reel drum grooving

As machine speed increases and sheet porosity decreases grooving of the reel drum becomes necessary in order to avoid sheet wrinkles, sheet breaks and quality defects.

Dryer can warm-up / cooldown guidelines and typical procedure

The purpose of dryer can warm-up/cooldown procedures is to permit uniform expansion or contraction of all components of the dryer system in order to minimize thermal stresses in the equipment.

Maximize baling line efficiency and minimize cost with an audit

A professional baling line audit from Valmet will ensure optimal use of the installed equipment and maximize efficiency while minimizing service costs.

Valmet Performance Center - process support agreement case study

The Valmet Performance Center is described, including how it works and actual results we have achieved with a customer while operating under a Performance Agreement.

Yankee creping problems and too many regrinds, a case study

In this case study, creping problems on a Yankee correlated with frequent regrinds. Analysis by the OEM specialist discovered misalignment, and made procedural recommendations to resolve the problems.

The screening process, troubleshooting, warning signs and coating

Once a screen cylinder's holes plug or its raised plating or coating is worn smooth, a host of operational problems can occur affecting runnability, capacity, pulp quality and cylinder life. There are three warning signs of excessive wear to monitor.

Optimize doctoring performance and lower total cost of ownership

Every doctoring process can be improved. The usual investments required are minimal. Optimizing your doctoring processes results in better runnability, improved quality, optimal production efficiency, reduced maintenance costs and improved safety and environmental effect.

Safety improvements at the reel and winder (webinar)

Valmet experts discuss safety standards relating to reels and winders, and what can be done to improve operator and equipment safety with today's technology.

Helpful coating tips: jet angle, gap, critical factors, etc.

Factors that increase coat weight: decrease of blade load, decrease tip angle, increased viscosity/solids, increase speeds & increase in sheet roughness.

Helpful tips on retention chemistry, coagulants, starch, etc.

Most microparticle systems are based on anionic products, silica, micropolymers and bentonite. Retention aid systems involve coagulants, macroflocculants and microflocculants.