A Polish converter cutting 12 µm BOPP film at 600 m/min was burning through 4 D2 slitters per week. The fix was a 2-week field audit, a steel-grade change, an edge-prep change, and a coolant-nozzle relocation. This case study walks through the diagnostic, the trial, and the result — a 6× service life improvement that paid back the entire project cost in 11 weeks.
A side-by-side comparison of high-speed steel and tungsten carbide for industrial machine knives — covering hardness, toughness, cost, edge retention and the substrates each material was actually designed to cut.
AISI M2 is the workhorse high-speed steel of the converting industry. AISI M4 is its higher-vanadium cousin. The 1 % V difference looks small on a chemistry sheet but it changes how the knife cuts, how it grinds, and how long it lasts. Here is the engineering comparison.
A slitting blade is the most-asked-about consumable on a converting line. The life of the knife is set by the substrate, the steel grade, the edge prep, the heat-treat quality and the in-process care — not by luck. This maintenance guide walks through the seven variables that actually drive service life.
A structured method our engineers use to match substrate, geometry, hardness target, edge preparation and operating speed to a production line — without second-guessing the steel grade.