ZUND Tungsten Carbide Z50 Z51 Z52 10-sided (Decagon) Round Cutting Knife Blades

They feature multi-sided polygonal geometries to create a clean shearing effect rather than drag-cutting, making them optimal for porous, woven, and tough flexible materials like textiles, fiberglass, carbon fiber, and aramid.

Specifications Comparison

Parameter	Z50 Blade	Z51 Blade	Z52 Blade
Zund Part No.	3910325	3910326	3910327
Blade Geometry	10-sided (Decagon)	10-sided (Decagon)	10-sided (Decagon)
Diameter	25 mm	28 mm	32 mm
Max Cutting Depth	1.0 mm	1.0 mm	1.0 mm
Bore/Thickness	0.6 mm thickness	0.6 mm thickness	0.6 mm thickness
Edge Type	Double-edged / Standard	Fine tooth / Scalloped	Heavy-duty / Coarse tooth

Key Applications & Usage

• Z50: General-purpose cutting for standard technical textiles, woven fabrics, canvas, and thin film synthetics.

• Z51: Delicate or easily frayed materials such as silk, nylon, thin fiberglass, and lightweight aramid fibers.

• Z52: Heavy-duty, high-abrasion materials including multi-layer carbon fiber, heavy fiberglass, Kevlar, and tough composites.
  
  
  

Technical Advantages

• High-Grade Tungsten Carbide: Provides extreme wear resistance and longevity, maintaining sharpness significantly longer than high-speed steel (HSS).

• Reduced Material Pulling: Rotary cutting motion eliminates material dragging, preventing fiber distortion or edge fraying during high-speed feed operations.
  
  
  

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