The Kadant Blog

Roll Cleaning


Advances in Press Roll Dewatering

Blind drilled, grooved, and suction drilled rolls are commonly used on presses in the papermaking process. The open areas in these rolls are designed to accept water from the fabric. It is important all the water in these rolls be evacuated before the nip to prevent re-wetting the sheet and to ensure optimum press nip performance. In some cases these rolls rely solely on centrifugal force to evacuate water, but this is often not sufficient, especially when the fabric becomes filled and cannot accept as much water.

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Improving Flaker Productivity - a Case Study

Often the goal for roll cleaning is to prevent contaminants from getting into the finished product. However, for the flaking industry, application-specific doctor blades provide a different function. In everything from potato starch flaking to pharmaceutical uses, the goal is to efficiently remove the product from the roll and generate maximum yield. So what benefit do roll cleaning and scraping technologies offer the flaking industry? The following case study illustrates how a specialized blade holder and flaking blade significantly increased productivity and decreased downtime.

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Is It Possible to Effectively Clean a Yankee Dryer?

What is the single most expensive and critical piece of equipment in a tissue mill? The Yankee dryer, of course. And when chatter marks and other damage to the Yankee dryer surface are found, they require expensive grinds which can reduce the operating life of this important asset.

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