PET preforms and thin-wall packaging products impose exceptionally stringent requirements on dimensional accuracy, wall thickness uniformity, and optical transparency. Especially in ultra-high-cavity production scenarios with 96-cavity, 128-cavity, or even 144-cavity configurations, the consistency of each cavity's output serves as the benchmark for measuring a machine's core performance. Lisong's PET specialized injection molding machine delivers systematic assurance for high-quality molding through full-process precision control—from clamping and injection to temperature management.

Clamping Rigidity: Minimal Platen Deformation, Every Cavity Product "Identical"

      Multi-cavity molds place extremely high demands on the parallelism and rigidity of the clamping system. If clamping force is unevenly distributed, some cavities may produce flash due to insufficient clamping force, while others may suffer from mold deformation and preform wall thickness deviation caused by excessive clamping force. Lisong's direct-pressure clamping structure applies force directly through hydraulic cylinders, ensuring uniform platen loading with minimal deformation, while machine parallelism automatically adapts to mold conditions. This characteristic enables every cavity in high-cavity molds to maintain exceptional consistency in dimensions, wall thickness, and appearance, significantly reducing rejection rates.

Clean Design: Zero-Oil Clamping Area, Building a Food Safety Defense Line

      Food-grade PET preform production has zero tolerance for foreign matter contamination. In traditional toggle-type clamping mechanisms, prolonged operation causes wear between pins and bushings, generating fine metallic particles, with lubricating oil inevitably seeping into the clamping area. Lisong's direct-pressure clamping system features a maintenance-free, oil-free design in the clamping area, completely eliminating the risk of oil contamination to molds and finished products. Combined with the all-electric control system's leak-free hydraulic design, it provides robust compliance assurance for food safety at the equipment level.

Precision Temperature Control: Suppressing Deformation, Achieving Both Transparency and Strength

      PET material has a narrow processing window, and uneven mold temperature distribution can easily lead to shrinkage variations in preforms, causing deformation and loss of transparency. Lisong's PET specialized machine is equipped with an external high-efficiency cooling system that enables rapid mold heat dissipation, significantly shortening cycle times, while precisely controlling mold temperature distribution to effectively suppress preform deformation. The uniform heating capability of the infrared nano-heating rings further ensures melt temperature stability, allowing preforms to achieve excellent transparency while maintaining consistent mechanical properties.

      Quality consistency in high-cavity configurations, oil-free cleanliness assurance, and process stability through precision temperature control—these three advantages combined position Lisong's PET specialized machine as a trusted production asset in premium markets including beverage, cooking oil, and cosmetic packaging.