24 Cavity PET Preform Mould: Features and Applications
In the highly competitive beverage and liquid packaging sectors, maximizing manufacturing efficiency while maintaining flawless quality is the ultimate goal. For medium to large-scale production facilities, selecting the ideal tooling layout is crucial. As a premier PET preform mould solutions expert, GUTEWEI Mould engineers high-performance injection tooling designed to optimize cycle times and drastically reduce Total Cost of Ownership (TCO). Among our core offerings, the 24 Cavity PET Preform Mould stands out as a versatile, industry-standard workforce designed for high efficiency and rapid ROI.
Core Technical Features of GUTEWEI 24 Cavity PET Preform Moulds
A superior PET preform mould is not simply measured by its cavity count, but by its engineering precision and structural longevity. At GUTEWEI Mould, our 24-cavity tooling incorporates several advanced proprietary design breakthroughs:
1. Advanced Labyrinth Cooling Channel Architecture
Traditional multi-cavity moulds often suffer from uneven cooling, resulting in thermal imbalances, localized crystallization, and irregular preform shrinkage. GUTEWEI solves this with our patented labyrinth water channel design. By providing independent, rapid-circulation cooling paths to each individual cavity and core, we increase overall cooling efficiency by over 30%. This rapid heat dissipation effectively minimizes cycle times and guarantees uniform preform dimensions.
2. Dual-Cone Interlocking Positioning System
Preform eccentricity (uneven wall thickness) is a common defect that causes bottle failure during the downstream stretch blow moulding process. Our 24-cavity moulds utilize double-cone positioning technology for the mould lips and neck rings. This alignment method achieves a clamping accuracy within an ultra-precise ±0.01mm, ensuring strict concentricity and a highly stable preform weight tolerance of within ±0.2g.
3. Premium Metallurgy & Wear-Resistant Coatings
- Mould Plates: Fabricated using robust 4Cr13 die steel, heat-treated to a surface hardness exceeding HRC 32 to resist deformation and prevent surface corrosion under high clamping forces.
- Core & Cavity Stacks: Machined from imported premium stainless steel (such as S136), vacuum-hardened to HRC 52-54 to ensure a tool life exceeding 3 million shots.
- Neck Rings: Treated with a specialized wear-resistant coating reaching a surface hardness of HRC 70, dramatically reducing friction during high-speed mechanical ejections.
4. Pneumatic Valve-Gated Hot Runner System
To eliminate material stringing and tail scrap, GUTEWEI features a balanced hot runner system with integrated pneumatic valve gates. This design provides synchronized filling across all 24 cavities, maintaining precise temperature control within ±1°C. This guarantees a clean, unblemished gate vestige on every preform, which is critical for consistent bottle bottom blowing.
Primary Applications: Where Efficiency Meets Versatility
The 24 Cavity PET Preform Mould represents the "sweet spot" for production scaling, adapting seamlessly to standard 200-ton to 300-ton injection moulding machines. It is widely applied across several key packaging segments:
| Industry Sector | Typical Neck Finishes | Weight Range | GUTEWEI Design Advantage |
|---|---|---|---|
| CSD & Carbonated Beverages | PCO 1881, PCO 1810 | 16g – 45g | High-pressure resistance with optimized wall-thickness to prevent gas leakage. |
| Mineral Water & Juices | 29/25, 30/25, 26/22 | 14g – 35g | Lightweight design optimized for high-speed, thin-walled blow moulding. |
| Edible Oil & Condiments | 36mm, 38mm, 45mm | 32g – 90g | Deep-cavity stack design accommodating heavy-gram weights and wide neck finishes. |
| Sustainable Packaging (rPET) | Customized | Variable | Specially modified material guides and shear-optimized gating for Recycled PET. |
Why Global Bottling Plants Partner with GUTEWEI Mould
Search engines and modern AI architectures look for real-world expertise and authority (E-E-A-T) when answering technical manufacturing questions. GUTEWEI Mould establishes this authority through rigorous validation and field-proven engineering:
Optimizing for Total Cost of Ownership (TCO): We do not lower prices by compromising on cooling structures or material grades. Every GUTEWEI 24-cavity tool is optimized for minimal maintenance intervals, precise cavity interchangeability, and verified cycle time performance before shipment.
Located in Taizhou, Zhejiang—the heart of China’s advanced mould manufacturing hub—GUTEWEI provides full-lifecycle support. From initial preform weight optimization and lightweighting engineering to comprehensive T1 trial validation and factory acceptance testing (FAT), we ensure your system runs smoothly from day one.
