High-performance mold steel selection: The core cavity and core are made of high-hardness, high-wear-resistance, and good-toughness steels, such as S136, NAK80, and H13, ensuring long-term stable mold operation.
S136 mirror finish advantage: S136 steel has strong corrosion resistance and excellent mirror finish performance, making it ideal for producing cosmetic preforms with high surface finish requirements.
NAK80 and H13 stability: NAK80 has uniform hardness and good machinability, reducing the risk of heat treatment deformation; H13 has high thermal strength, can withstand high temperatures and frequent injection cycles, and prevents thermal cracking.
MOLD PITCH LAYOUT
| CAVITATION | LAYOUT |
PITCH |
Thread up to |
Support ring up to |
MAX.body Dia. |
|
4X12 |
60X152 |
38mm |
42mm |
38mm |
|
|
6X12 |
60X140 |
38mm |
42mm |
38mm |
|
|
6X12 |
50X140 |
30mm |
34mm |
30mm |
|
|
6X12 |
50X120 |
30mm |
34mm |
30mm |
|
|
8X12 |
60X140 |
38mm |
42mm |
38mm |
|
|
6X16 |
50X140 (2X100) |
30mm |
34mm |
30mm |
|
|
8X12 |
50X120 |
30mm |
34mm |
30mm |
|
|
6X16 |
60X114 |
38mm |
42mm |
38mm |
|
|
8X16 |
50X120 |
30mm |
34mm |
30mm |
|
|
8X16 |
50X111 |
30mm |
34mm |
30mm |
|
|
8X18 |
50X140 |
30mm |
34mm |
30mm |
The mold is applicable to various machine models, subject to confirmation by the project engineer.
Optimized Design for Enhanced PET Preform Mold Structural Reliability
Precision Cavity Layout and Runner Design:
A symmetrical or radial layout is employed, combined with CFD simulation to optimize runner length, diameter, and angle, ensuring uniform melt distribution. Multi-stage manifolds reduce flow resistance, and smooth bends prevent eddies and localized wear, improving production stability and mold life.
01
High-Efficiency Cooling System:
Conformal cooling channels closely follow the cavity for rapid and uniform cooling, reducing the risk of thermal fatigue and deformation. Optimized venting grooves and inserts prevent trapped air from causing localized high temperatures or burns, improving product quality.
02
Enhanced Mold Rigidity:
The mold base is made of high-strength alloy steel, with increased thickness and added reinforcing ribs. Support pillars or blocks are installed inside the cavity to ensure mold stability under high-pressure injection molding.
03
Precise Guiding and Wear-Resistant Design:
The guiding mechanism uses high-precision ball bearing guide pillars and bushings to ensure precise opening and closing, reduce wear, and improve long-term mold reliability.
04
PET Preform Injection Mould 128cav Applications
Mineral Water Bottle Preform Production
The high-cavity structure enables stable mass production, suitable for the high-speed production needs of conventional drinking water and purified water bottle preforms.
Edible Oil Bottle Preform Manufacturing
Excellent wall thickness consistency and strength control meet the stringent requirements for pressure resistance and impact resistance in edible oil packaging.
Carbonated beverage bottle preform production
Suitable for large-scale stable production of bottle preforms for high-pressure beverages such as cola and soda.
Professional Custom PET Mould Manufacturer
SZ-MOLDTECH is a professional manufacturer of custom PET preform molds, committed to providing customers with high-precision and high-stability mold solutions. Leveraging advanced design simulation technology and precision machining equipment, SZ-MOLDTECH can flexibly customize runner structures, cooling systems, and wear-resistant component configurations according to customer parameters, ensuring efficient mold operation during high-speed production. Our 128-cavity PET preform injection molds achieve shorter production cycles, higher product consistency, and longer service life through rigorous quality control and engineering optimization. With mature non-standard customization capabilities and a stable delivery system, we continuously provide reliable PET mold products and technical support to customers worldwide.
Everything You Need To Know
SZ-MOLDTECH - Your Trusted Partner for Precision PET Preform Moulds
Q: What customization options do you offer for your PET preform molds?
A: We offer comprehensive customization, from the number of mold cavities, runner structure, cooling system, steel grade, surface treatment to tolerance requirements. Our engineering team will provide the most suitable solution based on the customer's production line parameters, cycle time targets, and preform design, ensuring higher stability and longer mold life.
Q: What are the advantages of your PET preform molds in terms of stability?
A: Our molds undergo multiple rounds of optimization in structural design, steel selection, and cooling system to ensure stable injection, uniform molding, and a low defect rate under high-speed injection molding conditions. Each mold undergoes rigorous trial molding tests before leaving the factory to ensure consistent operation.
Q: Does your company have the capability to independently complete the entire manufacturing process?
A: Yes. We complete everything from design, processing, assembly to trial molding in our own factory, ensuring full process control. Our engineering team works closely with the processing department to ensure accurate implementation of design intent, consistent processing precision, and more controllable project delivery times.
Q: Can you provide guidance for customers purchasing PET molds for the first time?
A: Yes. We provide detailed technical specifications for customers making their first purchase or building a new production line, including preform specification recommendations, mold maintenance guidelines, production parameter references, and cost optimization solutions to help customers quickly enter a stable production phase.
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