In PET preform production, mold precision and production stability have a direct impact on product quality, mold life and overall production costs.

      A high-performance PET preform injection molding machine requires not only a high-speed injection system, but also a stable and precise clamping system.

      Lisong PET preform injection molding machines are designed with a high-rigidity clamping structure, maintenance-free mold clamping system, direct pressure locking, low-pressure mold protection and low-friction linear guide rails to provide reliable performance for long-term PET preform production.

1. Maintenance-Free Clamping System

      Traditional clamping systems may require regular lubrication and maintenance during long-term operation. This increases maintenance costs and may affect machine performance if lubrication is insufficient.

      Lisong's maintenance-free clamping system reduces daily maintenance requirements while maintaining stable clamping performance.

      For PET preform factories operating 24 hours a day, less maintenance means higher machine utilization and lower operating costs.

2. Direct Pressure Locking for High Clamping Accuracy

      PET preform molds usually require high precision. The stability of the clamping system directly affects mold force distribution and product consistency.

      Lisong uses a direct pressure locking mechanism with minimal template deformation. The machine parallelism can effectively follow the mold, helping maintain consistent pressure distribution across different cavities.

      This is particularly important for multi-cavity PET preform molds, where cavity-to-cavity consistency is critical.

3. Low-Pressure Mold Protection

      PET preform production commonly uses expensive multi-cavity precision molds. Any foreign object or abnormal condition during mold closing may cause mold damage.

      Lisong's PET-specific low-pressure mold protection system can reduce the mold protection pressure to approximately 1/30 of the clamping force, providing effective protection for precision PET molds.

      This helps reduce the risk of mold damage, unexpected downtime and expensive maintenance.

4. Low-Friction Linear Guide Rails

      The clamping system uses low-friction linear guide rails to ensure smooth movement while reducing mechanical friction and wear.

      For high-speed and high-cycle PET preform production, a stable mechanical structure helps maintain long-term operating accuracy.