PET Preform Mold for Edible Oil Bottle

The PET preform mold for edible oil bottle accommodates shot weights up to 500 grams and preform lengths exceeding 200 mm. The cores are made from a high-modulus alloy to resist bending during injection, ensuring the internal bore remains perfectly straight and the wall distribution is even-vital for the stretch ratio of a large bottle.

Oil bottles are lifted and tilted by their neck, so the threads molded by a PET preform mold for edible oil bottle must be exceptionally strong. The neck ring design includes a robust support ledge and deep, rounded thread roots that distribute stress. Our cooling layout freezes this thick section completely before ejection, preventing creep or deformation.

Edible oil can cause environmental stress cracking in some PET formulations. The PET preform mold for edible oil bottle is optimized to process high-ESCR, high-intrinsic-viscosity resins. The hot runner melt channels are sized for the higher pressure drop of these tough materials, yet they maintain balanced fill without excessive injection pressure.

Stripping long, heavy preforms from the core requires a guided, multi-stage ejection system. In a PET preform mold for edible oil bottle, the stripper plate is supported by additional guide pillars and uses angled lifter bars to give a smooth initial breakaway. This mechanism ensures the preform is released without scuff marks or bending, preserving the pristine inner surface necessary for filling line clarity.

Combining ultra-precision machining, intelligent system integration, and proven hot runner technology, DEMARK delivers PET preform molding solutions that ensure faster cycles, stable production, and long mold lifetime for manufacturers worldwide.