PET Preform Injection Mold

Kenplas adopts latest engineering innovation, metalworking technologies, and mold making know-how to design, manufacture and test PET preform molds. Kenplas' PET preform mold assures the customer to produce high-quality PET preforms at high productivity, but with most economical investment, shortest start-up time and lowest maintenance cost.

With Kenplas' PET preform mold, medium and small size company can produce PET preforms by themselves and also satisfy the fresh brood's production requirement in PET field.

We are enjoying a good reputation on manufacturing close tolerance molds manufactured to rigid customer specifications.

PET Preform Injection Molding (Size: 1.45Mb, Duration 0'36")

Setup of PET Preform Injection Mold (Size 11.8Mb, Duration: 5'06")

• Excellent mold steel, STAVAX S136(ASSAB/Sweden) steel or equivalent for mold core/cavity.
• Chrome-free.
• Coil Heaters, HotSet/Germany;
• Hard mold cavity/core, HRC48-50 as per international standard.
• Long service life, over 2.5 million shots.
• Inter-changeable mold components.
• Balanced multi-Layer hot runner.

• Gate-free preform with superior gate quality.
• Low I.V. (intrinsic viscosity loss) loss.
• Low preform eccentricity, no more than 0.1mm.
• Excellent perpendicularity.
• Low weight variation between cavities, less than +/-0.2g.
• Low Acetaldehyde AA level.
• Low preform temperature at exit to avoid preform scratches.

• Professional PET Preform Design
  >> Make Imagination into Reality
  Based on the years' experience and integration with most advanced mold technology on the world, Kenplas can design preform with both standard and non-standard neck/shape/volume for water bottle, CSD bottle and oil bottle with perfect bottle blowing performance as per customer's bottle requirement.
   
• Long Service Life
  >> Over 2.5 Million Shots
  Kenplas' PET Preform Injection Mold enjoys a service life over 2.5 million shots, based on scores years' design/manufacture experience, mold making know-how, adoption of CNC machining center, high-precision EDM shaping machine and high precision Jig Boring machine.
   
  • Steel Material and Machining Tools -- Precision
    High quality steel like special Anti-rust Mold Steel and Alloy Steel is used to build mold's different parts. High original hardness and nice machining performance is above steel's mutual features.
     
  • Heat Treatment for Mold Building -- Strong
    Kenplas does twin heating treatment for mold's inner parts to enhance their strength and prolong their using life. After Treatment, the mold core's surface hardness can reach HRC 58~60 degree.
    After heat treatment, hard chrome plating will be adopted on Kenplas Preform Injection Mold's inner part. On normal condition, Kenplas Preform Injection Mold can go on 2.5 millions times of injecting production cycle at least.
     
• Gate-Free Preform
  >> Labor-Saving
   
  • Valve-Gate Sealing System -- Gate-free Preform
    Kenplas Preform Injection Mold adopts Pneumatic Valve-Gate Sealing System to produce gate-free PET preform,  which can save much labor and material cost, also reduce the mold's wear & tear extent for customer.
     
  • Hot Runner System
    Kenplas Preform Injection Mold adopts specially designed Pin-Valve type Hot Runner System to achieve ideal and prompt heating effect for preform production. Moreover, such hot runner system reduces mold's each part's wear & tear and maintenance cost, and also saves 10~15%'s electricity.
     
  • Heating System -- Quick Response but Energy-saving
    Kenplas Preform Injection Mold adopts double Heating system to ensure perfect heating effect and reliable quality control. The Heater Unit is used to heat the hot runner plate with long service life and powerful heating capacity. The Heating Ring System is used to ensure the mold nozzle's constant heating temperature.
     
  • Hydraulic Ejecting System -- Quiet, Long Service Life
    Kenplas Preform Injection Mold adopts hydraulic ejecting mode to replace the mechanical type Hook Doffing System for smooth preform doffing process. The preform-doffing success ratio has achieved firm insurance and the whole preform ejecting process will become much quieter.
     
• Cooling System
  >> Short Cycle Time & Perfect Preform Quality
  In each inner mold part, there is well-designed cooling system with perfect cooling effect and abundant strength.
   
• Low Preform Eccentricity
  >> Leave Preform Eccentricity Away
   
  • Self-lock System
    Long bi-awls (double-taper) fixed orientation advanced techniques has been adopted on Kenplas Preform Injection Mold to reduce the preform eccentricity problem caused by outside reasons.
     
  • Patent Designed Rectifying System for Preform's Eccentricity -- Double Insurance on Preform Eccentricity
    Patent Designed Rectifying Device has been equipped on Kenplas Preform Injection Mold to remove preform eccentricity possibly occurs during preform production. After rectified, the preform wall's eccentricity can be adjusted below 0.05mm again.
     
• After-Sale Service
  >> Have a good sleep
  Before delivery, each mold will bear strict test. Detailed parameters will be recorded with their own sole serial number. And full set of enough spare part will be equipped with mold to ensure mold's normal working. Moreover, during mold's using period, Kenplas ensures abundant normal spare part supply for any requirement. Kenplas helps you solve all the problems happened during production.

Mold Cavity Layout & Dimension

Production Analysis: 24g Preform for 500ml Water Bottle with PCO Neck

Production Analysis: 32g Preform for 1000ml Water Bottle with PCO Neck

Production Analysis: 42g Preform for 1500ml Water Bottle with PCO Neck