Choosing the Right CNC Blades for Different Foam Densities

Choosing the Right CNC Blades for Different Foam Densities 

When it comes to precision foam cutting, the blade you choose makes all the difference. Not every foam is created equal—and neither are the blades designed to cut them. Matching the right blade to the right foam density ensures cleaner cuts, reduced waste, and longer blade life.

Here’s a breakdown of the best CNC contour blade options for different foam types:

High-Density Foams

Cutting through tougher, denser foams requires blades that balance strength with precision.
Best options:

• 14T and 12T DBV (Double Bevel V-Tooth) – delivers durability and accuracy for rigid foams.
• Piranha Scallop – aggressive yet precise, ideal for challenging contours.
• Mini Scallop (10T and 12T)– excellent for detailed cuts without compromising finish.

Medium-Density Foams

These foams demand versatility—blades that can handle density without sacrificing speed.
Best options:

• 18T DBV (Double Bevel V-Tooth) – a go-to for reliable, consistent cuts.
• Piranha Scallop – maintains smooth cuts across varying foam structures.

Low-Density Foams

Light foams cut cleanest with blades designed for finesse and control.
Best options:

• DBKE (Double Bevel Knife Edge) – sharp and smooth, prevents tearing in softer foams.
• 24T DBV (Double Bevel V-Tooth) – fine-tooth precision for delicate applications.

Blade Profiles Explained

• DBKE – Double Bevel Knife Edge: Known for razor-sharp precision, great for soft foams and fiber.
• DBV – Double Bevel V-Tooth: A versatile choice with excellent cutting efficiency across foam types.
• Scallop Blades: Piranha and Mini Scallop blades combine aggressive cutting action with smooth finishes, making them ideal for complex contours.

Want Help Choosing the Right Blades?

The right blade isn’t just about cutting—it’s about performance, consistency, and reducing downtime. Whether you’re working with high-density rigid foams or soft cushioning foams, selecting the right CNC blade ensures your operation runs smoother. If you’re not sure which blade fits your application, we’re here to help. We’ve been helping people choose the right blade for over 40 years! We can recommend the right blade for your application. Let’s talk blades. Reach out at orders@precblades.com, 662.869.1034, or www.precisionblades.net.