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Edible Oil Preform Mold is a high-precision tooling solution designed for manufacturing PET (polyethylene terephthalate) preforms used in producing bottles for edible oils, sauces, and other food-grade liquids. Engineered for high-speed injection molding machines, these molds ensure consistent preform quality with minimal material waste. Constructed from premium tool steel (e.g., S136, NAK80) or corrosion-resistant alloys, they feature advanced cooling systems and surface treatments to enhance durability and production efficiency.
Precision Tooling Design:
Multi-cavity configurations (8–96 cavities) with uniform wall thickness distribution (tolerance ±1%) for optimal blow molding results.
Gate design options: Hot runner (for low scrap) or cold runner (for cost-effective small batches), with automated de-gating systems.
Material Excellence:
Mold components treated with PVD (physical vapor deposition) coatings (e.g., TiN, DLC) to reduce friction and extend mold life to 10+ million cycles.
Core and cavity inserts made from hardened steel (HRC 52–56) to withstand high injection pressures (up to 1500 bar).
Efficient Cooling System:
Integrated spiral or baffle cooling channels for uniform temperature control (±2°C), reducing cycle times by 20–30% compared to conventional molds.
Water-cooled manifolds with quick-connect fittings for easy installation and maintenance.
Food Safety Compliance:
Surface finishes compliant with FDA 21 CFR Part 177.1630 for PET food contact materials, with Ra ≤ 0.4μm to prevent material adhesion and bacterial buildup.
Edible Oil Packaging: Production of preforms for 0.5L–5L bottles used in cooking oil, olive oil, and vinegar, with designs optimized for stackability and label visibility.
Condiments & Sauces: Manufacturing preforms for squeeze bottles and rigid containers, with neck finishes compatible with flip-top or pour spout closures.
Beverage Adjacent: Suitable for non-carbonated food liquids, including syrups, dressings, and liquid seasonings, with barrier properties enhanced via EVOH co-injection if required.
Q: What is the typical cycle time for a 48-cavity preform mold?
A: Cycle times range from 4–6 seconds per cycle, depending on preform size and cooling requirements, enabling production rates of 28,000–42,000 preforms per hour.
Q: Can the mold be adjusted for different neck finishes?
A: Yes, neck inserts are interchangeable, supporting common finishes like 28mm, 38mm, and 53mm, with quick-change mechanisms for minimal downtime.
Q: How is mold wear minimized during production?
A: Regular maintenance with food-grade lubricants, combined with PVD coatings and hardened steel components, ensures consistent performance over millions of cycles.
Q: Do you offer mold validation for FDA compliance?
A: Yes, we provide full validation reports including dimensional checks, material certification, and food contact safety testing (e.g., migration tests per EU 10/2011).
Q: What is the recommended storage condition for unused molds?
A: Store in a temperature-controlled environment (20–25°C, humidity ≤ 50%) with anti-rust protectant applied to all metal surfaces, and core/cavity surfaces covered with protective film.
