The new S-test method correlates well with the compressive yield strength potential of fluting medium in a CMT test. This yield strength is more relevant than standard CMT when predicting the ability of fluting medium to keep the liners apart, without losing its own strength in a corrugated board construction.
The L&W S-Tester will provide quick and accurate feedback; it can also perform automated S-tests in L&W Autoline (complete paper quality measuring system) to add even more impact to mills producing fluting-medium when it comes to saving production costs. These measurements will help to reduce energy consumption through the elimination of over-refining, optimize the use of starch additives, and improve overall quality by generating a uniform paper product.
”This test method, developed by a group of industry partners, is now offered as a fully-supported product only by ABB,” says Thomas Fürst, Global Product Manager, ABB Pulp & Paper products.
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Figure 1. ABB’s L&W S-Tester offers a better method for strength classification of medium fluting. Better and easier than the classic corrugating medium test.