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Shared Journey Forward - Valmet's new services approach

Valmet wants to be a valuable part of your team. This is reflected in our core commitments and unique services offering. Join us on a shared journey forward.

Reviewing Yankee dryer condition and performance with inspections

The Yankee dryer is one of the most essential parts of the tissue machine. This pressure vessel serves as a base for creping, pressing and drying of the paper sheet. Condition and performance of the Yankee should be monitored regularly.

Field Report - Reel safety (maintenance)

Maintenance personnel should be thoroughly familiar with the OEM equipment manual before performing any maintenance procedures on the reel. When performing any maintenance on the reel, the following safety guidelines should be followed:

Follow this checklist to troubleshoot CD moisture profiles

Poor CD moisture profiles are usually caused in the press or forming sections, but the dryer section can also play a role. Follow these troubleshooting tips to improve your CD moisture profiles.

Field Report - Basic steps for troubleshooting hydraulic issues

There are many ways to diagnose hydraulic issues. Here are a list of some basic steps to follow, from research to working safely onsite to troubleshoot the problem.

Start-up checklists help operators avoid missing machine settings

Start-up checklists help new and seasoned machine operators through the start-up process without missing any machine settings. They are also good for training purposes.

Table of ream sizes for common paper, board and tissue grades

This table lists ream sizes by paper grade including lbs/ream to grams/square meter conversion factors.

The function and proper setup of size press sealing blades

Properly functioning sealing blades in a metered size press prevent air from entering the application chamber while lubricating the blade tip/applicator roll interface. Periodic checks of the blade setup are essential for a long and trouble-free blade lifetime.

Blade doctors - purpose, design, operation, examples and options

Doctors are used to scrape foreign material off rolls or to redirect the web to prevent wrapping around rolls. Doctor components vary, but all blade type doctors will have blade(s), blade holder(s) and beam. Heaters, oscillators, air blows and catch pans are common additional options.

Guide to dryer section performance, key operating parameters

Here are some notes regarding key operation parameters of the dryer section, starting with the three zones related to effective drying rate.