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32cavity Preform Mold
32 Cavity Preform Mold is designed for continuous, high-volume production of PET preforms used in beverage, food, and packaging applications.
Description
Product Overview
32 Cavity Preform Mold is designed for continuous, high-volume production of PET preforms used in beverage, food, and packaging applications.
It is developed for stable multi-cavity operation, consistent part weight control, and long-term use in automated injection molding lines.
The mold is suitable for manufacturers requiring repeatable output quality under continuous production conditions.
Specifications
| Item | Specification |
| Mold Dimensions | 770*560*530 mm |
| Recommended Injection Machine | ~320 Ton |
| Mold Layout | 8*4 |
| WeightTolerance | ±0.3g |
| WallThickness Variation | ≤ 0.03 mm |
| MoldLife | 5 Million Shots (With recommended maintenance) |
| Gate Type | Valve Gate |
| Cycle Time | 12 - 15 seconds (Depending on preform weight) |
Engineered Performance & Advantages
The hot runner system is designed to distribute melt flow evenly across all cavities. This helps maintain consistent preform weight and reduces cavity-to-cavity variation during long production cycles.
Core and cavity components are manufactured using hardened tool steel (such as S136 or equivalent), selected for corrosion resistance against PET processing conditions and wear resistance during repeated cycles.
The cooling layout is engineered to maintain stable cavity temperature during continuous operation. This supports cycle time consistency and reduces deformation risk in high-speed production.
Critical wear components are designed with standardized structures to support maintenance and replacement without full mold disassembly, reducing downtime during production.
Steel & Component Provenance
We control quality from the source. Standardized certificate reports (including original material mill certificates and heat-treatment logs) are provided with every shipment.
Mold Core & Cavity: Original Sweden ASSAB S136 / Japan Daido NAK80 (Hardened to HRC 48-52)
Mold Base: 4CR13 Stainless Steel for superior rust prevention in chilled-water cooling environments.
Hot Runner Components: Precision German-engineered heating elements and thermocouples for ±1°C thermal stability.
Pneumatic Actuators: Genuine FESTO / SMC components ensuring synchronous and responsive valve gate actuation.
Application
This mold is optimized for automated manufacturing environments producing:
Beverage and mineral water bottle preforms
Food packaging container preforms
Cosmetic and household chemical packaging preforms
It is designed for production lines requiring stable long-term output and consistent multi-cavity performance.
Machine Compatibility
Our molds are fully customizable to interface with global injection molding systems, including Husky, Netstal, Engel, KraussMaffei, Haitian, and others. We design custom cooling manifolds, air connections, and platen interfaces tailored exactly to your machine specifications.
Machining & Tolerances: All critical components are machined via imported precision CNC and EDM centers, maintaining machining tolerances within ±0.005 mm to ensure 100% component interchangeability.
Quality Control & Tolerances
Machining Precision: All critical mold inserts are finished via imported high-precision CNC and Makino EDM centers. We maintain machining tolerances within ±0.005 mm, ensuring 100% component interchangeability.
Concentricity Control: To eliminate parting line flash and uneven wall thickness, each cavity utilizes an independent double-taper locking system. This keeps preform concentricity below ≤ 0.03 mm.
Shipping & After-Sales Deliverables
When your mold is delivered, you receive full documentation and verification components for immediate production setup:
Factory Inspection Video: High-definition video proof of the final 24-hour continuous dry-run and injection trial.
FAI (First Article Inspection) Report: Full dimensional and statistical analysis data of the tested sample preforms.
Complimentary Spare Parts Kit: Includes 1 extra set of core & cavity, heating bands, thermocouples, and nozzles for 2 years of standard operation.
Technical Support: 24-hour online engineering response for installation, commissioning, and parameter optimization.
FAQ
Q: What steel and hot runner components are used in this mold?
A: Cores and cavities utilize Sweden ASSAB S136 (HRC 48-52); the mold base uses 4CR13 stainless steel for corrosion resistance. The hot runner is a balanced valve gate system equipped with German heating elements for thermal stability.
Q: How do you maintain concentricity and control parting line flash?
A: Components are finished via high-precision CNC and EDM (tolerances within ±0.005mm). Each cavity uses an independent double-taper locking system to maintain concentricity below ≤ 0.03 mm, stabilizing wall thickness and minimizing flash.
Q: Can individual cavities be replaced during maintenance?
A: Yes. Cavities and cores are designed to be interchangeable. Standard maintenance or single-cavity replacements can typically be performed directly on the injection machine, reducing potential downtime.
Q: Is the mold compatible with my current injection molding machine?
A: We customize the mold base, platen connections, and cooling interfaces to match your specific machine specifications. We verify your machine's platen layout during the engineering design phase.
Q: What verification is performed prior to shipment?
A: Every mold undergoes a continuous dry-run and injection trial under production conditions. Shipping is authorized only after the preforms meet dimensional specifications. We provide the Trial Video and FAI (First Article Inspection) Report for your approval.
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