Since 2019, Leizhen Mold has been a global leader in designing and manufacturing high-precision wide-mouth jar molds and PET preform molds for industries including food packaging, cosmetics, pharmaceuticals, and household chemicals.

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Zero-Failure Mold Testing: 100% Quality Assurance for Preform Molds

By Admin
2025/5/19 8:22:18

High Quality 720g 5 Gallon Pet Plastic Preform for Water Bottles

Why Our Preform Molds Stand Out

Our molds are meticulously designed, machined, and tested to eliminate defects and maximize efficiency. Key advantages include:

Zero Defect Guarantee – Every mold undergoes rigorous testing before delivery, ensuring 100% molding rate with no rejects.
Ultra-Durable Construction – Made from premium hardened steel with advanced heat treatment for extended service life.
Optimized Cooling & Cycle Time – Precision-engineered cooling channels enable faster production without compromising quality.
Customization Ready – Tailored to your specific preform design (neck finish, weight, wall thickness) for seamless integration into your production line.

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Our Strict Mold Testing Process

Before any mold leaves our facility, it must pass three critical validation stages:

  1. Trial Production Run – We mold sample preforms to verify dimensional accuracy and material distribution.

  2. Performance Stress Test – The mold undergoes high-cycle testing to ensure stability under continuous operation.

  3. Final Quality Inspection – Each preform is checked for:

    • Weight consistency

    • Wall thickness uniformity

    • Neck finish perfection

Only after 100% compliance do we approve the mold for delivery.

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The LEIZHEN Advantage

  • Reduced Downtime – Our molds are built for longevity and easy maintenance, minimizing production interruptions.

  • Energy Efficiency – Optimized cooling systems lower energy consumption, cutting operational costs.

  • Global Reliability – Trusted by PET manufacturers worldwide for consistent, high-output performance.

Conclusion

When you choose LEIZHEN preform molds, you’re not just buying a tool—you’re investing in unmatched precision, reliability, and efficiency.

Ready to upgrade your production? Contact us today for a mold that delivers perfection, every time.

720g Short Neck Pet Preforms of 5 Gallon Water Bottle

19 Liter 5 Gallon Plastic Water Bottle Making Machine 608g 720g Pet Preform Stretch Blow Molding Machine ; Max Diameter. 100 mm ; Max Height. 350 mm ; Power.

Our services:
1. Leizhen Mould will send the processing report each 10 days during the tooling (tooling photos and words descriptions).
2. Leizhen Mold can provide full set product and mould drawings and all relative papers (igs, stp, x_t).
3. Leizhen Mould will send customers the testing samples and running videos for customer to check the product running status. The samples can be sent by DHL or any specified courier.
4. Leizhen mould can provide the mould and machine test report.
5. Before goods shipment, each mould and machine will be tested at least one hour to check the stability.


In the competitive world of PET packaging, quality begins at the mold. At LEIZHEN, we engineer high-precision preform molds that guarantee 100% molding success—ensuring every preform meets exact specifications for flawless bottle production.

Leizhen mould