PET-specific Injection Molding Machine
PET Preform Injection Solution
PET-specific Injection Molding Machine for Bottle Preform Production
THREEPLAST configures PET injection molding machines around your preform weight, cavity count, neck finish, output target and local power conditions. The system is designed for stable plasticizing, clear preforms, repeatable weight control and easier commissioning.
Why PET Needs a Dedicated Setup
Built for PET plasticizing, repeatability and preform clarity
PET-specific injection unit
Optimized screw, barrel and heating zones help PET melt evenly while reducing yellowing, black spots and unstable shot weight caused by poor plasticizing.
Stable clamping and mold protection
Rigid platen structure and precise mold open/close control support multi-cavity preform molds and protect high-value hot runner systems.
Servo energy control
Servo hydraulic response provides the pressure and flow needed for PET cycles while reducing energy consumption during cooling and holding stages.
Auxiliary integration
Matched dehumidifying dryer, loader, chiller, cooling tower and mold temperature control are available for a complete PET preform line.
Output-based selection
Machine tonnage, shot capacity and screw diameter are selected from your target preform weight, cavity count, cycle time and annual output.
Start-up support
Process parameter guidance, installation checking and operator training help your team reach stable mass production faster after delivery.
Configuration Reference
Machine sizing matched to your PET preform project
The exact model is confirmed after checking the preform drawing or sample. The table below is a practical selection guide for inquiry discussion.
| Applicable products | Water bottle preforms, carbonated drink preforms, edible oil preforms, cosmetic bottle preforms, wide-mouth jar preforms |
|---|---|
| Material | PET resin with proper dehumidifying and drying before processing |
| Common preform weight | 10-120 g, depending on bottle volume, neck finish and wall thickness |
| Cavity range | 2-72 cavities depending on preform weight, mold layout and output requirement |
| Recommended options | PET screw and barrel, enlarged injection motor, servo system, hot runner interface, robot or conveyor integration |
| Auxiliaries | Dehumidifying dryer, auto loader, chiller, cooling tower, air compressor, crusher and mixer as required |
Applications
For beverage, food, oil and cosmetic packaging factories
What We Configure
Complete PET preform injection line support
- Injection molding machine model selection by shot weight and mold size
- PET screw, barrel and plasticizing configuration recommendation
- Preform mold matching, including hot runner and cooling requirements
- Drying, loading and cooling auxiliary equipment list
- Factory layout suggestion for machine, mold, water and air lines
- Commissioning checklist and process parameter support
Before Quotation
Send these details for accurate sizing
- Bottle or preform drawing, or clear photos with dimensions
- Preform weight in grams and neck finish standard
- Required cavities or target hourly output
- Material grade and IV value if already confirmed
- Local voltage, frequency and factory water conditions
- Whether mold and auxiliaries should be included
Project Process
From sample checking to stable production
Application review
We check preform weight, bottle size, target output and available factory utilities.
Machine selection
We match clamp force, injection capacity, screw size, mold thickness and tie-bar spacing.
Line configuration
We confirm dryer, loader, chiller, cooling tower and handling equipment requirements.
Commissioning
We provide start-up parameter support and training for repeatable PET preform production.
FAQ
Common questions from PET preform buyers
Can one machine run different preform weights?
Yes, within a reasonable shot weight and mold size range. For wide differences in weight or cavity count, we will check whether a separate screw or machine model is more efficient.
Do you supply PET molds and auxiliaries?
Yes. THREEPLAST can quote the injection molding machine alone or provide a matched line including preform mold, dryer, loader, chiller and other auxiliary equipment.
How do you choose the right model?
The main factors are preform weight, cavity count, total shot weight, mold dimensions, opening stroke, injection pressure and output requirement.
What affects PET preform quality most?
Drying condition, melt temperature, cooling design, injection repeatability, mold quality and stable water supply all affect transparency, weight consistency and cycle time.
Get a Practical Recommendation
Tell us your preform weight, cavity count and output target.
Our engineering team will recommend the machine model, injection unit, mold direction and auxiliary equipment list for your PET preform project.