Durable and Wear-Resistant Mold Steel Design
Utilizing high-grade mold steel and precision heat treatment technology, the design boasts a robust structure, wear resistance, and corrosion resistance, maintaining stable preform dimensions even during long-term operation.
High-Efficiency Cooling System Shortens Molding Cycle
Optimized water channel layout enhances cooling speed, shortens production cycles, and increases hourly output, suitable for high-cavity continuous production.
Balanced Hot Runner Ensures Consistent Preform Weight
Uniformly distributes molten PET, reducing weight errors, minimizing waste, and improving blow molding yield and consistency.
Customizable Multiple Cavity Counts to Adapt to Different Production Capacities
Offering options of 48, 72, 96, 128, and 144 cavities, allowing for flexible customization based on equipment and production needs to meet the production line configurations of factories of different sizes.
PET Water Bottle Preform Mold Structure and Core Components
Hot Runner System:
Balanced runner design ensures uniform melt distribution. Optional needle valve nozzles enable rapid heating and stable flow, effectively reducing black spots and material waste.
Cooling System:
High thermal conductivity hot water circulation system layout improves cooling efficiency, shortens molding cycle, reduces the risk of crystallization, fogging, and whitening, and stabilizes preform appearance quality.
Cavity and Core:
High-strength mold steel is chrome-plated, nitrided, or beryllium copper-cooled, featuring a more wear-resistant structure and fine polishing, improving preform transparency and mold life.
Neck:
Standard 28mm/30mm/38mm threads are precision-machined for excellent sealing performance. Bottle neck diameters can be customized to meet different bottle type requirements.
Industrial-Grade PET Water Bottle Preform Mold Quality Control Workflow
Raw Material Quality Inspection:
All mold steel undergoes hardness, corrosion resistance, and composition testing to ensure stable and reliable base materials, laying a high-quality foundation for subsequent processing.
Precision Machining and Component Quality Control:
High-precision machining is performed using CNC, EDM, deep hole drilling, and CNC grinding machines. Strict control is exercised over key dimensions, mating surfaces, and surface finish to ensure consistent precision across all parts.
Comprehensive Pre-Assembly Inspection:
All components undergo precision testing for fit, coaxiality, and sealing before assembly to ensure error-free operation and stable mold operation before proceeding to the next stage.
Trial Molding Inspection and Final Quality Control:
Samples are produced during the trial molding stage, and weight consistency, wall thickness uniformity, transparency, flow marks, and thread seal are tested to ensure the product meets mass production standards. Final confirmation is required before shipment.
User Evaluation
USA
Emily Carter | Purchasing Manager
Germany
Markus Schneider | Factory Technical Director
UAE
Omar Al-Harbi | Operations Director
Everything You Need To Know
SZ-MOLDTECH – Precision PET Preform Molds Engineered for Industrial Efficiency
1. Can the molds be customized?
Yes, SZ-MOLDTECH offers customized services with multiple cavities and specifications, including 48, 72, 96, 128, and 144-cavity molds, as well as different thread diameters and special preform sizes to match customer production line speeds and equipment models.
2. Are the molds durable and easy to maintain?
The molds feature a high-strength cavity design, making them wear-resistant and durable, capable of long-term high-load operation without affecting preform quality. At the same time, the mold structure facilitates cleaning and maintenance, extending service life and reducing downtime costs.
3. What is the production efficiency of the PET preform molds?
Through optimized hot runner systems and balanced cooling water circuits, the molds achieve rapid cooling and stable melt flow, significantly shortening the molding cycle and increasing hourly output, suitable for high-capacity continuous production needs.
4. What after-sales support does the company provide?
SZ-MOLDTECH provides professional installation guidance and commissioning services for each mold, and offers timely responses to technical problems encountered during production, ensuring customers can smoothly enter mass production.
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