12-cavity wide-mouth air-sealed mold
Wide-mouth PET preform injection mold
A 12-cavity wide-mouth air-sealed preform mold is a precision injection tool designed for producing PET/PP preforms for wide-mouth jars (typically 63-100mm neck finish) used in food, cosmetics, and pharmaceutical packaging. The air-sealed technology ensures each cavity maintains consistent pressure during injection, eliminating flash and ensuring uniform wall thickness. Equipped with a needle-valve hot runner system, it achieves cycle times of 18-22 seconds while reducing material waste by 30%. The 4×3 cavity layout optimizes machine space utilization for medium-volume production.
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This precision-engineered 12-cavity wide-mouth mold is a high-performance injection tool specialized in PET/PP preform injection, tailored for manufacturing premium PET/PP preforms for wide-neck containers (neck finish 63–100mm), perfectly suited for food-grade packaging, cosmetic, and pharmaceutical packaging applications. Equipped with advanced air-sealing technology, this 12-cavity wide-mouth mold maintains stable and uniform pressure in each cavity throughout the injection cycle, effectively eliminating flash and short shots while ensuring consistent preform wall thickness to support reliable downstream blow molding processes and deliver superior leak-proof performance. The integrated needle-valve hot runner system enables precise control over melt filling and cutoff, slashing production cycle times to just 18–22 seconds and reducing material waste by 30%, thus maximizing both efficiency and cost-effectiveness for medium-volume production of preforms for wide-neck containers. Featuring dual-cone positioning, the mold achieves micron-level alignment during clamping and opening, minimizing wear from repeated cycles to ensure long-term dimensional stability of preforms and extend mold service life. Crafted from food-grade S136 stainless steel, it boasts exceptional corrosion resistance, polishability, and high-temperature durability, fully complying with international food safety standards to meet the strict quality requirements of food-grade packaging and global packaging markets. Its optimized 4×3 cavity layout also maximizes injection machine space utilization, making this 12-cavity wide-mouth mold a reliable, high-value choice for manufacturers seeking to produce top-quality wide-mouth preforms that meet diverse market demands for PET/PP preform injection.
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