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Tips for troubleshooting your roll grinding application

A list of common problems incurred in roll grinding applications and their possible causes. Often, several conditions accumulate to create the problem.

Keep your machine calender in tune with changing production

For many grades, the machine calender is the last chance to affect sheet properties. Production variations can reduce the effectiveness of a machine calender.

Coater service case study - Removing OMC coating buildup

Valmet assisted in cleaning the blade holders, replacing the cross machine coater station profile strips and adjusting a return pan to reduce color leaks.

Headbox case study – Overcoming newsprint mill speed limit

The mill was concerned about speed limitations due to the current headbox status. They asked Valmet to diagnose the situation and recommend a course of action.

1000th Black Belt shoe press belt runs for ~200 days, case study

Valmet Black Belt features excellent wear resistance, stable structure and long run times. See how these features affected Papierfabrik Palm's success with PM6.

Valmet Superheater FuelDiet KCl Corrosion Management solution

Valmet Superheater KCl Corrosion Management can reduce fuel costs by using low-priced fuels without increasing the risk of superheater corrosion.

Digital hydraulic concept reduces cost and increases reliability

By using digital hydraulics, fragile and expensive proportional valves are replaced with multiple inexpensive and robust on/off valves. The results include higher reliability, lower energy usage, more accuracy in machine movements, fewer shutdowns, less lost production and lower initial investment and spare parts carrying cost.

Turn-key refiner renovation for Temiscaming, case study

Investigation of a refiner steam leak at the Temiscaming mill uncovers failure, downtime and instability issues. A turn-key refiner renovation by Valmet in under three months restores full capacity refiner operation.

Valmet Smelt Extraction service for chemical recovery boilers

Valmet has the services to swiftly and safely clean and empty chemical boilers. The turnkey Valmet Smelt Extraction service offers more thorough smelt removal in less time.

Circulating fluidized bed (CFB) evolution from coal to biomass

Circulating fluidized bed (CFB) technology has adapted to market needs over the last thirty years, from high-ash coal to low-calorific-value biomass, and from petcoke with a high sulfur content to waste fuel with a high chlorine content. CFB technology has proven its capability to adapt to changing technical requirements.