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Wet Aseptic Cold Filling

The aseptic cold filling production line integrates and optimizes multiple advanced technologies, including cleaning and sterilization, sterile isolation, microbiological monitoring and control, air purification, filling and sealing, and automated control. It is specifically designed for the production of acidic beverages, non-protein neutral beverages, and certain protein-based neutral beverages.

This equipment extends the flexibility of beverage filling processes and effectively preserves the nutritional content, flavor, and color of the beverage—making it particularly suitable for heat-sensitive drinks. Additionally, it provides extensive potential for diversified product appearance design and significantly reduces PET bottle costs.

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Product Features

  • The entire machine adopts a modular design, integrating multiple functional modules into a user-friendly all-in-one system.
  • The system is equipped with a sealed isolator hood, high-efficiency fans, and a sterile air filtration system to maintain positive pressure and aseptic conditions within the filling zone.
  • A fully automated system for process detection, control, and recording enables real-time monitoring and documentation of each step in the production line.
  • The tunnel-type sterilant filling and holding process ensures thorough and reliable sterilization.
  • Imported high-efficiency spray nozzles provide full-coverage rinsing with sterile water, ensuring compliant removal of sterilant residues.
  • A non-contact filling valve design eliminates the risk of cross-contamination, ensuring product safety.
  • Electromagnetic flow meters or weighing sensors deliver precise and consistent filling volumes.
  • An automatic CIP (Clean-in-Place) dummy cup system ensures efficient, hygienic, and convenient internal cleaning.
  • Caps are sterilized by immersion, followed by tunnel-style sterile water rinsing, ensuring complete sterilization.
  • Constant-torque magnetic capping heads ensure a high seal success rate and consistent sealing quality.
  • The sealing drive section uses steam thermal barrier technology, effectively isolating sterile areas from potential contamination.
  • Liquid sealing technology is applied to moving parts and rotating mechanisms, preventing contamination of sterile zones.
  • An externally centralized lubrication system ensures safe, convenient, and long-term stable lubrication performance.
  • The entire machine's CIP, SIP (Sterilize-in-Place), COP (Clean-out-of-Place), and SOP (Sterilize-out-of-Place) procedures are fully automated, ensuring high efficiency, convenience, and fast cleaning and sterilization cycles.

Technical Parameters

Why Choose Suncrown Machine’s Wet Aseptic Cold Filling System?

As a professional manufacturer of beverage and water production & filling machinery, Suncrown Machine offers advanced aseptic filling solutions to meet the strict hygiene, safety, and flavor preservation needs of modern beverage products. Our Wet Aseptic Cold Filling System is widely applied in juices, teas, dairy-based drinks, and plant-based beverages, helping brands achieve preservative-free, long shelf-life products without compromising taste or nutrition.

1. Wet Sterilization for Thorough Microbial Elimination

Utilizing wet chemical sterilization methods such as peracetic acid or liquid hydrogen peroxide, the system provides deep sterilization for bottles, caps, and filling valves—ensuring a >99.999% sterilization rate, ideal for high-hygiene beverage applications.

2. Cold Filling Preserves Nutrients and Natural Flavor

Products are filled at ambient temperature in an aseptic environment, helping retain sensitive nutrients, antioxidants, polyphenols, and proteins, especially critical for juices, teas, and dairy alternatives. Cold filling also helps preserve the product’s natural taste profile.

3. Fully Enclosed, Ultra-Clean Aseptic Zone

Equipped with HEPA-filtered clean air systems to maintain a Class 100 sterile zone. The filling environment is kept under positive pressure to prevent any contamination from external air sources.

4. Smart Automation with Full Process Monitoring

Powered by a PLC and HMI control system, the entire process is automated and allows precise monitoring of key parameters like temperature, sterilant concentration, time, and air pressure—ensuring product consistency and safety.

5. Versatile Line Compatibility for Various Bottle Types

The system supports PET, HDPE, and other plastic bottle formats, with customizable filling capacities from 100ml to 2L. It allows fast product changeovers, making it ideal for diversified production lines and seasonal products.

6. Preservative-Free Shelf Life Extension

By combining wet sterilization with aseptic cold filling, the system enables beverages to achieve extended shelf life without preservatives, helping brands offer cleaner-label and healthier products to consumers.

7. International Quality, Global Service

All Suncrown aseptic systems comply with FDA, CE, and GMP standards. We offer global project support, including layout design, installation, commissioning, training, and remote technical services—making it easier for clients worldwide to start aseptic beverage production.

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