TAPPI Over The Wire Paper 360
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Voith’s New InForce Polyurethane Roll Cover Ensures Higher Void Volume

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Voith, Germany, has introduced a new InForce polyurethane roll cover that features high stability, providing additional void volume with particularly deep and wide grooves for highly loaded positions. This additional benefit will not compromise the wear and abrasion resistance, resulting into consistent dewatering during its complete operating cycle, the company notes. 

The strong material used in InForce means that the grooves exhibit virtually no deformation over time. The roll cover easily withstands extreme nip loads. As a result, the void volume remains constantly high over the entire lifecycle and ensures very good, consistent dewatering throughout.

InForce is the successor to Voith’s G2000 roll cover and is available in two hardness levels. The structure ensures high stability. The WebNet layer located between the polyurethane and base layer has a three-dimensional polymer matrix specially developed by Voith, which can withstand high temperatures and mechanical and chemical loads and therefore offers maximum operating reliability.

Especially in highly loaded presses, steel grooves are often the preferred choice. The hard nip that occurs when using steel rolls impairs the lifecycle of the fabric and can also cause quality issues with the paper. The stability of InForce withstands the high loads while still providing the benefits of a polyurethane cover—surfaces can be tailored to the application. Fabrics are not impaired in comparison with steel grooves.
 
More information is available online. 

 

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