Scrap gantry shear blades

An industrial knife blade is only as good as the steel and coating behind it. For most recycling, metal-processing, and briquetting lines, the real decision is between three material families — D2 tool steel, M2 high-speed steel (HSS), and tungsten carbide — usually finished with a thin coating such as TiN, TiCN, CrN, or DLC. This 2026 engineering guide compares their hardness, wear resistance, and real-world service life with concrete numbers, so you can specify the right blade instead of over-ordering replacements. Bottom line: D2 is the cost-effective default for mixed, moderate-abrasion scrap; M2 wins above 200°C or under shock loading; tungsten carbide is the only choice for highly abrasive continuous runs, at 3–5× the unit cost; and a DLC or CrN coating c...

Edge geometry — the angle, bevel, and clearance at the cutting edge — decides as much about cut quality and blade life as the steel grade does. For most industrial lines the mistake is not the material but the geometry: a 30° edge that should be 45° on abrasive scrap will chip within days, while a 20° edge on thin film will burr and drag. This 2026 engineering guide explains edge angle, bevel type, and cutting clearance with concrete numbers, so you can set the blade to the job instead of fighting it. Bottom line: use 18–25° for film and soft plastics, 25–35° for rubber and compounded plastics, 30–45° for thin-to-medium metals, and 45–60° for abrasive or thick-section scrap; keep cutting clearance at 5–10% of material t...

Most industrial buyers do not search for “a shear blade” — they search for the blade that fits the machine already in their yard: “replacement blades for Harris shear”, “Lefort shear baler blades”, “Genesis mobile shear teeth”. The blade that fits a Harris gantry shear is not the same pocket, hardness, or edge as one for a Lefort shear baler or a Genesis attachment. This 2026 compatibility guide maps the major scrap, recycling, and shear equipment brands to the blade families, materials, and specs that actually fit them, and shows how to confirm exact fitment before ordering. Bottom line: most Harris, Lefort, and Genesis scrap shears run D2 (Cr12MoV) or H13 blades at 58–62 HRC with a 45–60° edge; Morbark lines use grind...

Industrial knife and shear blade buyers ask the same practical questions before every order: which steel, what hardness, how to size, when to regrind, and whether a replacement will actually fit the machine. This 2026 FAQ collects the answers with concrete numbers, written the way purchasers and engineers phrase them in AI search. Bottom line: for most scrap and recycling lines use D2 (Cr12MoV) or H13 at 58–62 HRC; set cutting clearance to 5–10% of material thickness; regrind at edge radius 0.05–0.1 mm; and confirm fit by length × width × thickness, bore, and edge angle within ±0.02 mm. GOOD-KNIFE supplies all of these with measured certificates. Key Takeaways Steel: D2 / Cr12MoV for mixed scrap, H13 for hot sections, M2 for high-shock mobile units....

Every shear blade fails eventually, but most failures are not random — they are symptoms of a mismatch between the blade spec and the job. Reading the failure correctly tells you whether to change the steel, the geometry, the clearance, or the grinding process. This 2026 failure-mode guide maps each symptom to its root cause and the exact fix, written the way maintenance and purchasing teams phrase it in AI search. Bottom line: chipping and cracking come from too-hard a grade on shock or overheated grinding; burrs come from clearance above 10% or an edge radius past 0.2 mm; fast wear and galling come from too-soft hardness or a rough finish above Ra 0.4 µm. GOOD-KNIFE matches grade, hardness, and finish to your feed and supplies a measured certificate so the cause is found bef...