The Kadant Blog

Welcome to the Kadant Toolbox, the official blog of Kadant. We know running an efficient operation with a reliable process is what your operational performance relies on, so we put our team to work for you to provide instruction, best practices, and technical know-how. 

Latest Articles

Pressure Powered Pump Alternative Reduces Maintenance

There are thousands of electric centrifugal pumps in service used to pump condensate. These pumps are either simplex or duplex condensate pump units and operated with a mechanical float switch assembly.

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New Movie Shows Removal of Roll Surface Build-Up

The patented EzKleen™ roll polisher is a recent development used to clean and recondition process rolls. The simple device incorporates a pivoting shoe that holds a cleaning pad and adjusts to any roll diameter.

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Doctoring Suction Pressure Rolls on Tissue Machines

A suction pressure roll double doctor blade system is specially designed for dewatering suction pressure rolls in tissue making applications. The system is comprised of a specially designed holder in primary position that augments the natural vacuum created behind the blade tip to expel more water from the roll surface.

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Nanotechnology Enhanced Doctor Blades Meet the Challenge

Nanotechnology, as it applies to doctor blades, is a microscopic filler material that is used to enhance the doctor blade performance. It’s added to resin to make the blade denser with higher peel strength and improved chip resistance. This stands out from a typical composite blade and allows for better wear resistance and roll cleaning.

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Paper Dryer Fabric Tension Impacts Dryer Performance

Dryer fabrics, often called dryer “felts”, are used to hold paper against the outer surfaces of steam-heated drying cylinders. The pressure from the dryer fabrics increases the rate of heat transfer from the dryer to the paper. The pressure that is applied to the paper depends on the fabric tension and the diameter of the dryer. The pressure can be calculated, as a first approximation, by the equation:

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Why is Checking the Doctor Blade Angle Important?

Doctor blades are used to clean rolls and remove stock accumulations, water, pitch, and filler buildup. Since paper, tissue, chemical, food, beverage, corrugating, construction, metals, textiles and nonwovens, it is important to make sure each doctor blade angle is set appropriately for the job to be accomplished.

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