Although PET preforms are relatively small and lightweight, their production requires high standards for injection speed, plasticization uniformity, temperature control and repeatability.

      Especially in multi-cavity PET preform production, the injection molding machine must complete plasticizing, injection, holding and cooling within a short cycle.

      If the injection system is unstable, problems such as weight variation, inconsistent transparency and product defects may occur.

      This is why PET preform production requires a dedicated injection system.

1. PET-Specific Twin-Screw Structure

      Lisong PET preform injection molding machines use a PET-specific twin-screw structure designed around the plasticizing characteristics of PET material.

      The twin-screw structure provides fast plasticization and precise injection while maintaining good plasticizing uniformity during high-speed production. It also helps control the AA value.

      For PET preforms used in food, beverage and packaging applications, stable plasticization is essential for consistent product quality.

2. Synchronized Injection and Plasticizing

      The twin-screw structure provides synchronized injection holding and material preparation functions.

      Under suitable processing conditions, the machine can reduce waiting time within the production cycle and improve overall production efficiency.

      For multi-cavity PET preform production, even a small reduction in cycle time can generate significant additional output over long-term continuous production.

3. Servo Motor Plasticization

      Lisong uses servo motor-driven plasticization to provide precise control of the plasticizing process.

      The servo system can dynamically adjust the plasticizing process according to actual production requirements, helping reduce unnecessary energy consumption.

      Stable plasticization also helps maintain consistent preform weight and product quality.

4. Nano Heating Technology for Lower Energy Consumption

      PET preform production requires continuous heating, making the heating system an important part of the machine's energy consumption.

      Lisong uses nano heating technology to improve heating efficiency and reduce heat loss.

      For PET preform machines operating continuously, improvements in heating efficiency can directly contribute to lower operating costs.

5. High-Speed Injection with Stable Plasticization

      PET preform production is not simply about achieving high injection speed.

      If injection speed is high but plasticization and temperature control are unstable, product quality can still be affected.

      Lisong's PET-specific injection system combines a twin-screw structure, servo plasticization and efficient heating technology to achieve high-speed production while maintaining plasticizing uniformity and process stability.