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NANJING ALAS INTERNATIONAL CO., LTD
Views: 102 Author: ALASMT Publish Time: 2026-05-08 Origin: Site
This is the most critical step. The cut stock’s category, thickness and physical traits directly decide blade material and design requirements.
Cut Material | Core Features | Blade Selection Tips |
|---|---|---|
Paper & cardboard | Contains abrasive mineral filler and dense fiber | General production uses quenched high-speed steel blades. Recycled abrasive paper works best with carbide inlaid cutters; higher initial purchase cost gets offset by far longer service life over long run. |
Soft metal (aluminum, copper etc.) | Soft texture, prone to surface scratch adhesion | Standard high-speed steel remains the most practical mainstream option. |
Hard steel & stainless steel | High tensile strength, fast blade abrasion | Solid carbide tops the list for wear resistance; cost-efficient alternatives include D2, Cr12MoV, H13 and 6CrW2Si alloy tool steel. |
Plastic, thin film & foil | Flexible, easy to tear or melt under cutting heat | Carbide tipped blades deliver neat cuts and less leftover scrap. Custom tooth or serrated cutting edges apply to tough stock or dotted line perforation. |
Each blade material balances edge hardness for wear resistance and core toughness to avoid edge chipping.
Blade Material | Material Traits | Hardness Range & Application Scenarios |
|---|---|---|
High speed steel (HSS) | Balanced hardness and impact resistance | 58–64 HRC. Widely used for paper, cardboard, aluminum and regular plastic cutting. |
Alloy tool steel (D2, Cr12MoV, H13, SKD-11) | High carbon-chromium formula for outstanding abrasion resistance | 50–62 HRC. Budget-friendly pick for medium hard steel and stainless steel processing. |
Solid / inlaid carbide | Extreme surface hardness with weaker shock resistance | 65–72 HRC. Preferred for super hard metal and heavily abrasive feedstock including recycled paper and thick composite sheets, with longest usable cycle. |
Fine-tuned blade angles match shear machine structure to guarantee stable, smooth cutting.
Bevel cutting angle: Common production range sits 15° to 25°. Steeper angles cut faster yet wear quicker; smaller angles keep edge intact longer for soft raw stock.
Rake angle: Controls blade face tilt against workpiece. Larger rake reduces cutting resistance for thick sheets but risks material deformation; smaller rake yields tidy cut surfaces while needing extra cutting power.
Edge profile: Straight edge for clean full cuts; serrated tooth edge for perforation or dense tough stock cutting.
Perfect blade performance counts on full machine compatibility.
Dimension matching: Blade length, thickness and mounting hole layout must fully conform to guillotine specs; non-standard equipment supports customized blade sizing.
Installation clearance: Proper gap fixed between upper and lower blades directly improves cutting finish and slows premature wear.
Equipment type difference: Swing arm shear and regular guillotine use separate blade holders, confirm blade model fits your machine design before purchase.
Heavy daily high-volume cutting: Go for carbide or premium D2/Cr12MoV tool steel. Less frequent regrinding cuts machine downtime and recurring production cost.
Occasional low-output cutting: Standard HSS blades balance upfront price and basic cutting performance perfectly.
Full lifecycle cost control: Premium grade blades cost more at checkout, yet extended service lifespan lowers total operating expense long term.
Blades deliver full value with regular upkeep.
Timely regrinding: All cutting edges wear down over operation. High-frequency production needs at least one professional regrind per year; choose qualified processors to restore original cutting angle precision.
Replace timing: Swap out blades once edges chip irreparably, fail sharpening recovery, require excessive cutting pressure or leave burrs and rough cuts on finished parts.
Service upgrade option: Vacuum heat treatment stabilizes blade hardness; TiN or PVD surface coating adds anti-friction wear layer to further stretch usable life.
Share your actual cutting material and guillotine model, I can give targeted blade selection suggestions.
Nanjing Alas International Co., Ltd. is a professional industrial tooling manufacturer focused on shear blades, bending dies, shredder blades, and custom wear parts. We offer full application engineering, material selection, setup guidance, and after-sales support to global customers.
Tell us your requirements, and our engineering team will provide professional solutions for blade specification, tool life optimization, and cost-effective production.