Screw Neck PET Preform Mold: Precision Tooling for Standard Threaded Closures
LEIZHEN Machinery: Professional Manufacturer of Preform Molds
LEIZHEN Machinery is a leading manufacturer and supplier of high-precision preform molds for the global packaging industry. Specializing exclusively in the design and production of advanced PET preform tooling, we provide comprehensive, customized solutions for manufacturers worldwide. With years of technical expertise and a strong commitment to research and development, we offer state-of-the-art molds that enable customers to produce high-quality preforms efficiently and cost-effectively.
Screw Neck PET Preform Mold: Precision Tooling for Standard Threaded Closures
LEIZHEN Machinery proudly presents our Screw Neck PET Preform Mold—a precision-engineered tooling solution designed specifically for the production of preforms with standard threaded neck finishes. Screw neck preforms are the foundation for countless beverage, food, pharmaceutical, and personal care bottles, requiring precise thread geometry to ensure reliable sealing and compatibility with standard caps . Our molds deliver exceptional accuracy, consistent quality, and long-term reliability.
Key Features
1. Precision Thread Engineering
The screw thread is the most critical feature for closure compatibility:
Micron-level thread accuracy ensuring perfect fit with standard caps
Consistent thread profiles across all cavities for uniform sealing performance
Thread tolerance maintained within ±0.02mm
Clean thread definition with no flash or deformation
2. Standard Neck Finish Compatibility
Our molds produce preforms compatible with industry-standard closures:
| Neck Finish | Typical Application |
|---|---|
| PCO 1810 | Carbonated soft drinks, sparkling water |
| PCO 1881 | Still water, non-carbonated beverages |
| 28mm | Standard beverage and food bottles |
| 30/25, 29/25 | European standard finishes |
| 38mm | Wide-mouth food jars |
| 48mm | Large containers, bulk packaging |
3. High-Efficiency Cavity Configurations
| Cavity Count | Typical Output | Ideal Application |
|---|---|---|
| 24-48 cavities | 12,000-22,000/hour | Medium to high-volume production |
| 48-72 cavities | 17,000-31,000/hour | Large-scale operations |
| 72-96 cavities | 23,000-40,000/hour | Maximum-output production |
4. Premium Material Construction
| Component | Material | Hardness |
|---|---|---|
| Core and Cavity Inserts | S136 Stainless Steel | HRC 48-52 |
| Neck Rings | Imported Nitrided Steel | HRC 45+ |
| Mold Base | Chrome-plated P20 Steel | Pre-hardened |
Mold life: Engineered for 3-5+ million injection cycles
5. Advanced Valve Gate Hot Runner
Individual temperature control for each nozzle within ±1°C
Balanced filling ensuring weight variation below 0.3 grams
Clean gate vestige with no tail trimming required
Low acetaldehyde (AA) generation preserving product taste
6. Optimized Cooling System
Spiral cooling channels for uniform heat extraction
Enhanced neck cooling ensuring thread dimensional stability
Cycle times as low as 15-22 seconds for standard preforms
Technical Specifications
| Parameter | Specification |
|---|---|
| Neck Finishes | PCO 1810, PCO 1881, 28mm, 30/25, 38mm, 48mm, custom |
| Preform Weight Range | 9g - 60g typical |
| Thread Tolerance | ±0.02mm |
| Wall Thickness Variation | < 0.10mm |
| Weight Difference Between Cavities | < 0.3 grams |
| Cycle Time | 15-22 seconds |
| Gate Type | Valve gate hot runner |
| Mold Life | 3-5+ million shots |
Applications
Beverage Industry
Bottled water (still and sparkling)
Carbonated soft drinks
Juices and sports drinks
Tea and functional beverages
Food Packaging
Edible oils and cooking oils
Sauces and condiments
Honey and syrups
Pharmaceutical
Liquid medications
Healthcare products
Personal Care
Shampoo, lotion, and cosmetic bottles
Quality Assurance
CMM inspection verifying thread dimensions
Thread gauge testing confirming cap compatibility
Weight consistency verification across all cavities
Sample production available for customer approval
Why Choose LEIZHEN for Screw Neck Preform Molds?
Precision threading: Consistent thread quality ensuring reliable cap sealing
Standard compatibility: Preforms designed for industry-standard closures
High efficiency: Multi-cavity configurations for maximum productivity
Premium materials: S136 steel construction for extended mold life
Comprehensive support: Design consultation, installation guidance, and after-sales service
Partner with LEIZHEN for Screw Neck Preform Solutions
LEIZHEN Machinery's Screw Neck PET Preform Mold delivers precision thread accuracy and reliable performance for standard closure applications. Contact us today to discuss your requirements.
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