Soda Preform Mold

The Soda preform mold creates a preform with a distinct, thickened gate pad that serves as the structural hub of the blown bottle base. This extra material in the gate area ensures that after biaxial orientation, the bottle base can withstand high burst pressures without stress whitening.

Soda preforms require low AA levels. The melt channels in a Soda preform mold are polished to a bright finish and designed with gradual transitions. The valve gate system further minimizes shear by opening fully before the injection velocity peaks, allowing the PET to flow with minimal resistance and preserving its viscosity.

The holding pressure for a Soda preform mold is typically higher to compact the thicker sections. The mold's cooling channels are positioned flush against the cavity steel and are designed to withstand high-pressure water without leakage. This ruggedness ensures that heat extraction remains efficient, keeping cycle times short despite the heavier preform weight.

Every Soda preform mold comes with a high-precision CMM report verifying the gate depth, neck ring dimensions, and body roundness. For carbonated drink fillers who require SPC data, this documentation is indispensable. It proves that the Soda preform mold will continuously produce preforms that meet the stringent dimensional specifications for pressure retention.

Our PET preform injection solutions are engineered to meet the demands of modern beverage and packaging production. With high-speed performance, precise mold technology, and stable system operation, DEMARK helps customers improve comPETitiveness in global markets.