Common PET Preform Neck Sizes and Their Applications
PET preform neck size is critical because it must match bottle caps and sealing systems.
Common Neck Sizes
- 28mm (beverage bottles)
- 30mm (oil bottles)
- 38mm (large containers)
Why Neck Size Matters
Cap compatibility
Sealing performance
Filling efficiency
ow to Choose the Right Neck Size
Depends on:
- Product type
- Bottle volume
- Cap design
Real-World Example
Edible oil bottles usually use 30mm necks for better flow control and sealing.
Conclusion
Choosing the correct neck size ensures compatibility and prevents leakage issues.
👉 Check our bottle cap solutions
👉 Or explore PET preform specifications
