OptiCalender Compact – hard and soft nip calendering

Calendering in compact size for maximum usability with minimum operational costs

OptiCalender Compact is designed for maximum usability with minimum operational costs. It provides quality calendering, but its structure is greatly simplified compared to your average calender. The simple, integrated structure enables extremely easy start-ups, everyday site operations as well as maintenances. Naturally, this also lowers the required initial investment and operational costs.

Lower initial investment and operational costs

Fast and smooth delivery

Compact size - everything integrated into the machine frame

Easy commissioning and start-up

Standardized project → a fast, smooth delivery

When you need a new calender, the whole calender delivery project is standardized from start to finish to ensure a fast, smooth delivery. All components have been designed to function together seamlessly, which limits the amount of modifications available for this calender model. However, with a more fixed calender module it is possible to integrate all parts of the design into one single unit. This way, no additional devices need to be placed in the basement or, for example, a separate automation module.

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Everything integrated into the machine frame:

Integrated calender

No separate modules nor devices in the basement

Below are all the connections that need to be made on site and after that the calender is fully operational. There are no separate hydraulic power units, drives or other equipment. No additional devices need to be placed in the basement or a separate automation module.

No external modules nor equipment in calender

New way of thinking in calender design

There are several structural improvements including walkways and drive foundations. The integrated drives don’t require any alignment or foundation building at customer site. All machine controls have been built into the calender control panel. All the pumps and valves required to controlthe machine’s pneumatics and hydraulics are located inside the control box.

Also the roll is heated by steam to increase cost efficiency. Similar structure is used in dryer cylinders - numerous references available. The integrated heating system uses paper making line steam supply.

Easy commissioning and start-up - Calender connections at the site:

Calender connections on site

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How to plan a successful rebuild?

Rebuilding a paper or board machine can improve the competitiveness of your business and your processes. Download our e-book to learn more.

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Planning a grade conversion?

The world is changing fast; the consumption of papers is decreasing and boards increasing. Update your paper machine with Valmet to produce more profitable products.

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Learn more about the services and automation solutions for calenders

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Targeting long grinding intervals and smooth surface quality? Valmet’s calender roll covers provide longer service intervals and optimum paper or board properties. Besides providing better marking resistance, our calender covers allow much higher speeds and temperatures without damage than conventional alternatives. For paper and boardmakers these factors mean quality. Let Valmet help you to run with the most suitable cover for your calender.

Five questions that will help maximize roll cover effectiveness

Roll cover decisions are complex; the prices, performance characteristics and cover lifetimes vary considerably. Answering these five questions can guide papermakers in making a better choice among today's wide range of roll cover technologies.

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Doctoring affects machine runnability, paper and board quality, production costs, and production efficiency. Runnability can be improved by optimizing doctoring parameters and blade materials. Cleaner rolls result in better end-product quality. The blades can be selected to meet customers shutdown schedule which will lead to fewer blade changes resulting in lower blade costs. The reduction of unplanned shutdowns and costly downtime periods can be avoided by reliable and trouble-free doctoring....

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