Half Star Punches - Vacuum Packaging Triangle Blade
D2 Tool Steel — Half Star Geometry
Half star (triangle) punch blades for vacuum packaging and thermoform machines. Compatible with Multivac, Tiromat, Opack, Betapak, GEA, Alcan, Ulma, Variovac. Made from D2 tool steel with high wear resistance. Titanium coating options available.
- Half star geometry
- D2 Tool Steel
- High wear resistance
- Titanium coating option
Technical Specifications
Why This Product?
D2 Tool Steel
12% chromium, 1.55% carbon — superior wear resistance and dimensional stability
TiN Coating Option
2300 HV surface, 40% friction reduction, 3-5x lifespan
Precision Geometry
Triangle form with optimal ventilation area to packaging integrity balance
Applications
Detailed Information
Half star punch blades are used to create ventilation patterns on film in vacuum packaging. D2 tool steel (1.55% C, 12% Cr, 0.85% Mo, 0.9% V) offers both wear resistance and dimensional stability thanks to its high chromium content.
Heat Treatment Parameters: 1020-1040°C austenite transformation → oil quenching → 200-250°C tempering. This 3-stage process achieves HRC 58-60 hardness with adequate toughness balance.
Geometry: The triangle-shaped half star pattern creates optimal ventilation area in the film while maintaining package integrity. DIN 1.2379 equivalent material standard.
Coating: TiN (Titanium Nitride) PVD coating increases surface hardness to 2300 HV, reduces friction by 40%, and extends blade life 3-5x.
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