Not every bottle production line is the same. Some manufacturers start with medium-volume lines using 30-cavity molds. Others operate high-speed injection molding machines capable of running 144-cavity tools around the clock. And many need the flexibility to scale up as demand grows.

That is why Gutewei offers custom large PET preform mold solutions covering the full range — from 30 cavities to 144 cavities — all engineered on demand to match your specific machine, preform design, and output targets.

One Supplier, Complete Cavity Coverage

30–48 Cavities: Entry to Medium Volume

Ideal for smaller bottlers, R&D lines, or regional production facilities. Gutewei 30- to 48-cavity molds offer:

• Lower initial investment without compromising preform quality

• Compact mold base dimensions compatible with mid-tonnage injection machines

• Easy maintenance and fast cavity replacement

72–96 Cavities: High-Volume Production Standard

The sweet spot for most commercial water and beverage bottlers. Gutewei 72- and 96-cavity molds deliver:

• Balanced hot runner systems with 8–12 drop configurations

• Optimized cooling for cycle times under 9 seconds

• Interchangeable core and cavity inserts for fast preform design changes

128–144 Cavities: Maximum Industrial Output

For large-scale PET preform manufacturers running dedicated high-tonnage presses. Gutewei 128- to 144-cavity molds feature:

• Advanced stack mold or large-plate single-face designs

• Precision flow balancing across all cavities (variation < 0.5%)

• Heavy-duty guide posts and wear plates for millions of cycles

• Compatibility with injection molding machines from 800 to 1500+ tons

What “On Demand Customization” Means at Gutewei

When you order a custom preform mold solution from Gutewei, you are not buying a generic tool. You receive a mold engineered to your exact specifications:

Why Choose Gutewei for Large PET Preform Molds?

1. Proven Multi-Cavity Expertise

With hundreds of molds delivered from 30 to 144 cavities, Gutewei has refined the engineering of flow balance, thermal management, and ejection synchronization at every cavity count.

2. Faster Lead Times for Large Molds

Our dedicated large-mold manufacturing line cuts typical 144-cavity mold lead times by 20–30% compared to industry averages — without rushing critical quality steps.

3. Modular Design for Easy Upgrades

A Gutewei large preform mold is built modularly. Need to increase from 72 to 96 cavities later? We design interchangeable cavity plates and hot runner drops from the start.

4. Global Support for Your Production Line

We provide:

• 3D mold drawings and machine interface drawings before manufacturing

• Installation supervision and sampling support

• Spare core/cavity sets available on demand

From 30 to 144 Cavities — We Grow With You

Whether you are a startup bottler running a single 30-cavity mold or an industrial PET preform producer filling multiple 144-cavity presses, Gutewei delivers. Our on demand customization approach means you get exactly the mold you need — no more, no less — at the right cavity count for your current and future production volume.

Ready to Scale Your PET Preform Production?

Tell us your target cavity count, preform design, and machine model. Gutewei will engineer a large PET preform mold solution that maximizes your output per square meter, per kilowatt, and per dollar invested.

Contact Gutewei today to discuss your 30 to 144 cavity preform mold project.