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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.

Beyond Circularity: SEEDForest COACH explores tomorrow’s intelligent industrial work

Valmet is participating in SEEDForest’s COACH project that aims to create steps towards human-centered, technologically enabled intelligent industrial work of the future.

Beyond Circularity on tour 2024: Forward with synergy

As summer turned to fall, it was time for our annual Beyond Circularity ecosystem event. This year, we went on a virtual tour. Around 300 participants joined in the event and received updates on the program’s status in October.

Reading fluids circuit diagrams - hydraulic & pneumatic symbols

Reading hydraulic and pneumatic circuit diagrams and being able to make sense out of them is a valuable skill for mill personnel. The first article in this series presents fluid control elements.

Valmet joins a research project to develop hydrogen underground storage

Valmet is joining forces with the VTT Technical Research Centre of Finland, Geological Survey of Finland (GTK), and 15 industrial partners in a pioneering research project called Hydrogen UnderGround (HUG). The project is also a part of Valmet’s Beyond Circularity R&D program and ecosystem.

The purpose, operation and maintenance of belted threaders

Typical threading of a winder starts at the unwind stand and continues to the cores. The equipment used to thread the sheet must be maintained for optimal running. This is a refresher on general operation of a belted threader, installation of belts and maintenance schedule.