Key Features of Preform Molds

May 06, 2026 Leave a message

High-Precision Molding Capability
Extremely high dimensional precision requirements, typically controlled within ±0.02 mmCapable of molding preforms in various complex shapes and specifications, including round, square, and oval High surface finish requirements for mold cavities (Ra ≤ 0.8 μm) to ensure superior preform surface quality.


Efficient Cooling System
Multi-stage cooling channel design ensures rapid and uniform cooling Cooling efficiency directly impacts production output; advanced molds can achieve a cycle time of 3–5 seconds per mold Specialized cooling channel designs reduce internal stress in preforms, improving the pass rate for subsequent blow molding.


Long Service Life Design
Manufactured using high-quality mold steels (e.g., P20, 2738, H13) Heat-treated to a hardness of HRC 48–52, ensuring excellent wear resistance and resistance to deformation Typical service life exceeds 500,000 cycles.

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