The winders used in the paper industry mostly wear due to the additives in paper (e.g. kaolin, calcium carbonite). The typical life span of the blade is less than 10 days.
The P/M material developed for this application (Ralloy WR6) achieves a longer life span. P/M together with the HIP method guarantees a stable microstructure that prevents even the slightest changes in measurements during use and storage. The life span of the optimised and superfinished blade may be up to 40 days.