Reliability
Valmet puts safety before anything else in our daily operations. We're also committed to supporting you in reaching your safety targets.
We provide reliability services that keep your equipment and processes running smoothly. We make sure that spare parts and components are easily available with minimal inventory costs. Reliable deliveries ensure that material is managed efficiently at your site every day.
Our maintenance and shutdown management services help you to keep your production assets in good working condition, minimizing downtime and controlling maintenance costs. We offer services for planning and implementing annual shutdowns to avoid cost and schedule overruns.
Reliability
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Avoid winder vibration with modern software and hardware tools
Some paper grades generate winder vibration. Modern tools help, such as 4-way hydraulic valves, stiffer drums with lower dynamic runout and automated controls.
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Proper bearing lubrication and modernization are essential
Most bearing failures can be traced to two maintenance oversights: a lack of lubrication or the use of the wrong type of lubrication. An upgrade may be needed.
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Field Report - Why balance rolls?
Unbalanced rolls hammer at the framework of the papermachine, leading to worn journals, bearings and covers. Balancing rolls lengthens component lifetimes.
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Case Study - Larger jumbo rolls increase pressroom breaks
Larger wound roll sizes dramatically increased press breaks for an LWC mill's customer. Process analysis and Valmet small fixes provided a temporary solution.
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Case Study - Multiple poly roll cover failures solved
After blowing two expensive roll covers, a mill asked Valmet to investigate. After checking roll history, nip impressions and coolant, the culprit was an inexpensive part.
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Field Report - Hydraulic safety before, during and after maintenance
Hydraulic maintenance should be performed by knowledgeable, trained technicians. Here are some tips for safely and efficiently working on hydraulic systems.
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Case studies: Reduce downtime with press roll maintenance
A scheduled service plan guarantees product quality and machine runnability. Case studies show downtime reduction with Valmet press roll scheduled maintenance.
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Field Report - Supercalendering process conditions, variables and grinding recommendations
Process variables affecting SC paper production, process conditions affecting supercalender polymer roll life and calender roll grinding recommendations.
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Valmet shoe press belt continuous improvement gives proven success
An unscheduled belt change in the press section is costly. Case studies show Valmet Black Belt handles extremely high nip loads and provides long run times.
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Field Report - Wet streak investigation, case study
A wet streak leads to combined investigation by mill personnel and Valmet roll specialists. A suction roll cover is removed and analyzed, after which a metallurgist inspects the roll. The mill mechanic provides a key insight...