How To Select Zund Blades For Different Materials On Zund Digital Knife Cutter

Below is a clear, practical, step-by-step guide on how to select the correct Zund blade for each material, and how to insert and set up the blade properly on Zund G3 / S3 / L3 cutters (EOT, POT, UCT, KCT, VCT, etc.).
I’ve written it so you can use it directly on your production floor.

1. Blade Selection for Different Materials (Zund)

Zund blades are chosen based on material thickness, material hardness, and tool type.
Here is a simple quick-reference:

A. Soft Materials (Paper, Vinyl, Film, Stickers) – UCT / KCT

→ Paper / Cardboard (0.1–1.5 mm)

Use:

• Zund Z1, Z2, Z3 drag blades (Standard drag knife)

• Angle: 30°–45°
  Why: Need low resistance and high precision for kiss-cut.

→ Vinyl / Stickers / Labels

Use:

• Z51 / Z52 Kiss-Cut blades

• Z30 / Z40 precision drag knife

• Angle: 30°–40°
  Setting:

• Use very small blade extension (0.1–0.2 mm)

• Knife Pressure: Lower than 60% to avoid cutting liner

B. Foam, Soft Rubber, Sponge – EOT (Oscillating Tool)

→ Foam (EVA, PE, PU foam 10–60 mm)

Use:

• Zund EOT 25 mm or 37 mm oscillating blades

• Example: Z10, Z11, Z16, long oscillating blades

• Teeth Optional: Use toothed blades for thick foams

Settings:

• Stroke: 100%

• Speed: Medium (200–500 mm/s)

• Lower pressure to reduce bending

C. Corrugated Cardboard – UCT / EOT

→ Single-wall corrugated

• Z26 UCT blade

• Angle: 60° for rigidity

→ Double-wall / Triple-wall

• EOT blades like Z10 / Z11

• Oscillation helps prevent crushing

D. Plastics (Acrylic, Rigid PVC, Polycarbonate)

→ Thin plastics (≤3 mm)

Use:

• Z20 / Z22 drag blade

• Angle: 45° or 60°

• Material must be cut slowly to avoid melting

→ Thick plastics (>3 mm)

Knife cutting not recommended → use Routing (RM-S, RM-L)

E. Textiles (Fabric, Leather, Technical Textile) – EOT / PTT

→ Normal fabric, sportswear textile

• PTT Pneumatic Tangential Tool + ZHS blades

→ Leather

• Z58 / Z60 leather blades

• 30°–45° angle

• If thick: EOT + serrated blades

F. V-Cut Materials (Honeycomb, Foam Boards) – VCT Tool

Use:

• Zund V-Cut blades 10°, 20°, 30°, 45°, 60°
  Selection:

• 10° / 20° for deep V

• 45° for 90° corner fold

• 60° for shallow bevel

2. Recommended Zund Blade List by Material (Simple Chart)

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