Custom Slitter Knives

What Are Slitter Knives?

What Are Their Main Uses?

• Cut steel, stainless steel, aluminum, copper, and other metal coils into custom narrow strips

• Create flat, smooth cut edges (no extra processing needed)

• Work with fast, continuous slitting production lines

• Keep strip width consistent for later manufacturing steps

• Metallurgy

• Metal fabrication

• Automotive parts

• Home appliances

• Hardware

• Special alloy processing

Recommended Slitter Knives by Metal Type

1. Ordinary Carbon Steel Strip (Cold-Rolled/Hot-Rolled)

• Blade material: Cr12MoV or SKD-11

• Blade type: Standard round blades or paired blades

• Hardness: HRC 58–60

• Benefits: Tough, wear-resistant, long-lasting; great for high-volume, daily slitting

2. Stainless Steel Strip (304, 316, 430)

• Blade material: Cr12MoV1 or D2

• Blade type: Round blades or paired blades

• Hardness: HRC 60–62

• Benefits: Very wear-resistant, less likely to chip; creates smooth, burr-free cuts

3. Soft Non-Ferrous Metals (Aluminum, Copper, Brass)

• Blade material: High-speed steel (HSS) or alloy tool steel

• Blade type: Precision-ground round blades

• Benefits: Smooth cut surface; reduces material sticking to the blade and surface scratches

4. Galvanized and Color-Coated Strips

• Blade material: Cr12MoV

• Blade type: Mirror-polished round blades

• Hardness: HRC 58–60

• Surface treatment: Nitrided or mirror-polished

• Benefits: Protects the strip’s coating; avoids zinc loss and paint scratches during slitting

Why ALAS Engineering-Grade Blades Are Better Than Generic Imports

1. Better Precision

• ALAS slitter knives are engineered, not just basic products

• We use in-house precision CNC machining and HardnessMap quality control

• Strict control over flatness and size ensures less edge chipping, scratching, and downtime

2. Lower Total Cost (TCO)

• Our blades use special metallurgy designed for your specific metal

• They last longer and can process more tons per sharpening

• Fewer blade changes and less grinding mean lower overall costs

3. Expert Engineering Support

• You get more than a blade—you get a complete slitting solution

• Our team provides custom settings and guidance for your machine, material, and speed

• This ensures your line runs efficiently, with less waste and better yield