blog details

PET Clear Wide-Mouth Jar Preforms: Crystal Clarity for Premium Food and Cosmetic Packaging

GTW Machinery: Professional Manufacturer of Preform Molds

GTW 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.

PET Clear Wide-Mouth Jar Preforms: Crystal Clarity for Premium Food and Cosmetic Packaging


GTW Machinery proudly presents our PET Clear Wide-Mouth Jar Preforms—precision-engineered preform solutions designed specifically for the production of transparent wide-mouth containers. These preforms are ideal for packaging applications where product visibility is essential, including food jars, cosmetic containers, and premium household products . Our clear preforms deliver exceptional optical clarity, consistent wall thickness, and reliable blow molding performance.

Key Features

1. Exceptional Crystal Clarity

Our wide-mouth preforms offer superior transparency:

  • Mirror-polished cavity surfaces ensuring exceptional glass-like clarity

  • High-gloss finish enhancing product presentation and shelf appeal

  • Minimal haze and cloudiness through optimized processing and cooling

  • Excellent light transmission for product visibility

2. Wide-Mouth Neck Finishes

Designed for easy access and versatile applications:

Neck SizeTypical Application
38mmFood jars, sauce containers, cosmetic jars
48mmEdible oil containers, bulk packaging
63mmLarge food jars, storage containers
70mmPremium cosmetic jars, specialty packaging
89mmLarge bulk containers, industrial jars

3. Food-Grade Material Compliance

  • Virgin PET material meeting FDA and EU food contact regulations

  • Non-toxic, odorless preserving product freshness and taste

  • Low acetaldehyde (AA) generation for sensitive food applications

  • BPA-free ensuring consumer safety

4. Precision Engineering

ParameterSpecification
Neck Finishes38mm, 48mm, 63mm, 70mm, 89mm, custom
Preform Weight Range25g - 120g
Wall Thickness Variation< 0.12mm
Weight Difference Between Cavities< 0.5 grams
MaterialVirgin PET, rPET compatible

5. High-Efficiency Cavity Configurations

Cavity CountTypical OutputIdeal Application
8-16 cavities4,000-10,000/hourMedium-volume production
16-24 cavities8,000-15,000/hourHigh-volume operations
24-32 cavities12,000-20,000/hourLarge-scale manufacturing

6. Premium Mold Construction

ComponentMaterialHardness
Core and Cavity InsertsS136 Stainless SteelHRC 48-52
Neck RingsImported Nitrided SteelHRC 45+
Mold BaseChrome-plated P20 SteelPre-hardened
  • Mold life: Engineered for 3-5+ million injection cycles

7. Advanced Hot Runner System

  • Valve gate technology for clean gate vestige

  • Individual temperature control within ±1°C

  • Balanced filling ensuring consistent clarity across all cavities

  • Weight variation maintained below 0.5 grams

8. Optimized Cooling System

  • Spiral cooling channels for uniform heat extraction

  • Enhanced cooling in neck area ensuring thread dimensional stability

  • Cycle times of 20-35 seconds depending on preform weight

Applications

Food Packaging

  • Jam, honey, and preserve jars

  • Sauce and condiment containers

  • Pickle and olive jars

  • Dry food storage containers

Cosmetics and Personal Care

  • Cream and lotion jars

  • Body butter and scrub containers

  • Cosmetic powder jars

  • Skincare product packaging

Household Products

  • Detergent and cleaning solution containers

  • Storage jars for dry goods

  • Laundry product containers

Specialty Packaging

  • Premium gift jars

  • Sample containers

  • Artisan product packaging

Quality Assurance

  • CMM inspection verifying all critical dimensions

  • Clarity testing ensuring optical transparency

  • Weight consistency verification across all cavities

  • Thread gauge testing confirming cap compatibility

  • Sample production available for customer approval

Why Choose GTW for Clear Wide-Mouth Preform Molds?

  • Superior clarity: Mirror-polished cavities for exceptional transparency

  • Wide-mouth expertise: Specialized knowledge of large-diameter preform requirements

  • Precision engineering: Consistent wall thickness for reliable blow molding

  • Premium materials: S136 steel construction for extended mold life

  • High efficiency: Multi-cavity configurations for optimal productivity

Partner with GTW for Clear Wide-Mouth Preform Solutions

GTW Machinery's PET Clear Wide-Mouth Jar Preforms deliver exceptional clarity and reliable performance for premium food and cosmetic packaging. Contact us today to discuss your requirements.


Leave a Comment

back top