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Niploading of SymSizers - problems, corrections and maintenance

Nip loading varies based on the type of size / coating applied, the roll crowns and the incoming sheet. Wrinkles, skewing and e-nip profiles are important.

Achieving boiler MACT (Maximum Achievable Control Technology)

The primary goal of a boiler tune-up is to improve efficiency with respect to combustion operations by re-establishing the air-fuel mixture for the operating range of the boiler and balance oxygen and unburned fuel.

Coater backing roll showers - purpose, layout and setup

Showers on the coater backing roll lubricate, cool and prevent coating buildup. This extends roll lifetime and can reduce coater-related sheet breaks.

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.

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.

The Otava navigates in challenging conditions

The Otava operates in the Kotka archipelago as a commuter and oil recovery vessel. The vessel's navigation in icy conditions is facilitated by a modern automation solution provided by Valmet.

Race against time at Smurfit Kappa Kraftliner

The Smurfit Kappa Kraftliner paper mill in Sweden was having problems with its evaporation plant. The mill chose to replace the damaged heating surfaces with Valmet’s TUBEL heating surfaces. But with the collapse of a 350-tonne crane, a standard replacement job became a race against time.

Valmet’s 1,000th Black Belt: success at Palm

There are two good reasons to celebrate the Valmet Black Belt that ran on Papierfabrik Palm’s PM 6 from July 2013 to January 2014: First, it was the 1,000th delivery of this unique shoe press belt, and second, it ran for almost 200 days. Congratulations!

Valmet offers a greener side to power generation

Power producers are faced with a tough challenge. Global energy demand is growing, natural resources are diminishing and environmental legislation is tightening. There are, however, new ways for the fossil fuel-dominated power industry to reduce its dependence on non-renewable energy. Heat and electricity can be generated sustainably, yet profitably.

Optimized dewatering with packaging papers

Liner and fluting producers no longer need to make compromises between long felt lifetime and good dewatering. Valmet’s new LineMaster press felt family for liner and FluteMaster press felt family for fluting provide the optimal solution to achieve both.