72 Cavity Preform Mold
Our 72 cavity preform mold is a high-precision injection mold specifically designed for large-scale PET preform production. Featuring a 72-cavity layout, this mold delivers high efficiency and stable molding quality, making it the ideal choice for factories with mass production demands for PET preforms.The 72 cavity preform mold adopts an integrated hot runner system, ensuring uniform filling and precise temperature control, which significantly improves production efficiency and reduces production costs for PET preform manufacturing.
Core Advantages of 72 Cavity Preform Mold
As a high-capacity solution, our 72 cavity preform mold is compatible with automatic injection molding machines, providing stable and continuous production to meet the large-batch needs of beverage and cosmetic packaging factories.The following technical parameters cover material, capacity, dimension and other core indicators, calibrated according to industry benchmarks (refer to Taizhou Huangyan mold technical standards) and verified by actual production data, providing a comprehensive reference for your production line configuration.Compared to low-cavity molds, our 72 cavity preform mold increases output by over 300% while maintaining consistent mold core precision and product uniformity, greatly enhancing your production competitiveness.
Technical Parameters of 72 Cavity Preform Mold
All core components of the 72 cavity preform mold are made of high-quality alloy steel, with precision machining and hardening treatment to ensure long service life and stable performance during high-speed operation.
| Category | Item | Specification |
| Basic Information | Mold Type | 72-Cavity PET Preform Injection Mold |
| Applicable Material | PET (main), PP (custom available) | |
| Runner System | Hot Runner (German Hasco) | |
| Certification | FDA, CE, ISO 13106:2014 | |
| Capacity & Efficiency | Production Capacity | 7500 PCS/H (16g PET preform) |
| Cycle Time | 12-15 seconds | |
| Service Life | ≥500,000 shots | |
| Material & Hardness | Mold Core/Cavity | German 2316 Stainless Steel (HRC 44-46) |
| Mold Base | P20 Pre-Hardened Steel (HRC 28-30) | |
| Valve Component | SKD61 Steel (HRC 59-61) | |
| Precision & Dimension | Dimension Tolerance | ±0.005mm |
| Surface Roughness | Ra≤0.04μm | |
| Mold Dimension (L×W×H) | 1170×800×610 mm | |
| Mold Weight | 4010 kg | |
| Compatible Preform | Neck Diameter | 28mm (PCO1810/1881), customizable |
| Preform Weight Range | 12-50g | |
| Blown Bottle Capacity | 300ml-2L | |
| Cooling System | Cooling Type | Spiral + Fountain + Cross Cooling Channels |
| Temperature Control Precision | ±1℃ | |
| Compatible Machines | – | Compatible with Demark, Husky, Hench injection molding machines |
Key Features & Competitive Advantages
Integrating advanced technologies from the mold industry, this 72-cavity preform mold solves pain points such as short service life, uneven cooling and high material waste in multi-cavity molds. Core advantages focus on high efficiency, durability and precision, supported by professional material selection and structural design, meeting the strict requirements of mass production.
Material Selection & Structural Design
High-Quality Steel Material：Mold core and cavity adopt German 2316 stainless steel (HRC 44-46), with excellent corrosion resistance and wear resistance; mold base uses P20 pre-hardened steel (HRC 28-30), ensuring structural stability. Valve components are made of SKD61 steel (HRC 59-61) for long service life up to 500,000 shots .
Self-Locking Stack Structure：Equipped with self-locking ring design, which locks the parting line before mold clamping, minimizing wear and ensuring no flash on preforms, extending the mold’s maintenance cycle .
Optimized Cooling System：Adopts spiral cooling channels for cavities and fountain cooling for cores, with cross cooling channels at the neck. Each plate has independent circulation channels, ensuring fast heat exchange and reducing cycle time to 12-15 seconds .
Hot Runner System & Production Efficiency
Adopting German Hasco hot runner system, the mold realizes uniform plastic flow distribution, reducing material waste by 30% compared with cold runner molds . The precise temperature control (±1℃) ensures consistent preform quality across 72 cavities, with a production capacity of 7500 pieces per hour for 16g PET preforms—meeting the mass production needs of large packaging enterprises . The hot runner design also shortens molding cycle, improving overall production efficiency by 40% compared with 48-cavity molds.
Precision Control & Quality Standards
The mold achieves high precision control with dimension tolerance ±0.005mm, surface roughness Ra≤0.04μm, complying with GB/T 41102-2021 and ISO 13106:2014 standards . All products pass FDA 21 CFR Part 177.1310 and EU REACH environmental requirements, ensuring food contact safety. Each mold undergoes 2000 times of opening and closing tests before delivery to verify leak-proof performance and structural stability .
Application Scenarios of 72 Cavity Preform Mold
With excellent compatibility and forming performance, the 72-cavity PET preform mold is widely used in food and beverage, edible oil, daily chemical and other industries. It is compatible with mainstream injection molding machines (including Demark, Husky models) and supports the production of various specifications of preforms, meeting diversified packaging needs.The 72 cavity preform mold is suitable for producing various types of PET preforms, including water bottle preforms, beverage bottle preforms, and oil bottle preforms, meeting diverse packaging production requirements.
After-sales Service for 72 Cavity Preform Mold
We provide one-stop customization and comprehensive after-sales support for the 72-cavity preform mold, covering custom design, sample testing, on-site debugging and maintenance consultation. A professional technical team responds quickly to solve your problems in product application, ensuring smooth mass production.
We provide comprehensive after-sales support for the 72 cavity preform mold, including free installation guidance, technical training, and lifetime maintenance services to ensure your production runs smoothly.
Customization Service Process
1. Requirement Submission：You provide preform drawings, samples or detailed requirements (neck diameter, weight, capacity, material);
2. Program Design：Our R&D team uses CAD/UG professional software to design the mold structure, providing a quotation and technical plan within 3 working days;
3. Design Confirmation：We send 3D/2D drawings for your approval, adjusting according to your suggestions until satisfied;
4. Mold Production：Start mass production after design confirmation, with a production cycle of 25-45 days (depending on complexity);
5. Testing & Delivery：Conduct 2000 times of opening and closing tests and preform injection testing, send samples for your verification, and deliver the mold with wooden packaging after passing the test.
FAQ About 72-Cavity PET Preform Mold
Q：What is the production capacity of this 72-cavity preform mold?
A：For 16g PET preforms (commonly used for 500ml-1L beverage bottles), the stable output is 7500 pieces per hour. The capacity can be adjusted according to preform weight—for 50g large preforms, the output is about 3000 PCS/H, which is 40% higher than 48-cavity molds .
Q：What materials are used for the mold, and how long is its service life?
A：The core and cavity adopt German 2316 stainless steel, and the mold base uses P20 pre-hardened steel. With proper maintenance, the service life can reach 500,000 shots, which is 20% longer than molds made of ordinary steel .
Q：Is this mold compatible with our existing injection molding machine?
A：The mold is designed to be compatible with most mainstream injection molding machines, including Demark ECO series, Husky XL series and Hench models. Please provide your machine’s clamping force, injection volume and other parameters, and we will verify compatibility and provide installation suggestions .
Q：Can you provide customized design for preforms of special specifications?
A：Yes, we support customization based on your preform drawings or samples. Customizable parameters include neck diameter (20-55mm), preform weight (10-100g) and cavity structure. The custom design cycle is 3-5 days, and sample molds can be delivered within 25-35 days .
Q：What after-sales services are provided for the mold?
A：We offer 1-year warranty for core components, free on-site installation and debugging, permanent technical consultation, and fast supply of spare parts. Our technical team responds to problems within 24 hours, and overseas after-sales service is available for urgent needs .