An Indian pharma converter cutting 50 µm 304 stainless foil at 80 m/min was getting 7 days from a D2 slitter. The fix was a 9Cr18MoV stainless slitter. 35 days. The case study walks through the audit, the trial, and the FDA / GMP compliance angle.
Definition of burr in industrial cutting: the unwanted projection of material on the cut edge, how it is measured, what causes it, and how to minimise it on slitter, shear and granulator blades.
Foam and rubber substrates are gummy, abrasive and chemically variable. The wrong blade grade galls immediately, the wrong edge geometry produces a torn surface, and the wrong cooling makes the problem worse. This guide covers PU foam, PE foam, EPDM rubber, silicone rubber and natural rubber slitting and shearing.
Paper slitting looks simple until you account for the substrate GSM, the caliper variation, the trim, the lay-flat tension and the line speed. This guide walks through the substrate map, the steel grade decision, the edge-prep and clearance targets, and the line-side conditions that determine whether your slitter lasts 7 days or 70 days.