BOTTLING / FILLING PETplanet Insider Vol. 26 No. 07+08/25 www.petpla.net 20 One monobloc for glass, PET, and refi llable bottles RefPET ready SIPA’s Isotronic G filling monobloc is designed to accommodate the production of a variety of bottle types. Designed to handle single-use and refillable (refPET) PET bottles as well as glass bottles, it accommodates screw tops, crown caps, and a wide variety of still or carbonated beverages. One notable feature is its capability to fill both glass and refillable PET bottles without mechanical changes, provided the bottles are the same height. This translates to faster transitions, fewer interventions, and no downtime. Built as an isobaric electro-pneumatic level filler, the Isotronic G incorporates a wide range of advanced design features that are claimed to deliver top-tier performance and flexibility. Available in configurations from 20 to 100 valves, it supports output rates of up to 50,000 bph. At the heart of the system is a stainless steel central tank equipped with mobile filling and vent tubes. The design allows operation without vertical movement of bottles, minimising wear and maintenance. Automatic engagement of dummy bottles during the washing cycle, along with easy-tosanitise valves and reliable mechanical components, further enhance the system’s simplicity and hygiene. Streamlined changeovers The Isotronic G simplifies adjustments when switching between different bottle materials, neck sizes, or formats, says SIPA. Centralised filling level adjustments eliminate the need to swap vent tubes. Handling is done through the base for glass bottles and by the neck for PET bottles, and when switching between glass and PET bottles of the same height, no monobloc height adjustment is needed. AccordFILLING ing to the company, neck changeovers are fast and tool-free, centring cups can be replaced quickly, and all parameters are controlled via a modern touchscreen HMI, keeping operations smooth and user-friendly. Smart features for high per-formance The system includes product deflection via a swirl device, intended to enable smooth filling without turbulence or foam, as well as automatic dummy bottle engagement. A dry pressurisation circuit minimises foaming, while the air return is separated from the product path to preserve product integrity. The system includes built-in protections in case of bottle burst, and eliminates the need for a pneumatic lifting cylinder, simplifying maintenance and improving hygiene. The swirl device, integrated within the valve, spreads the product evenly along the bottle walls in a thin, controlled film. Unlike conventional systems, this design doesn’t require adjustments when changing formats, reducing downtime and simplifying cleaning. Combined with fully automated sanitation, triggered directly from the operator panel, the Isotronic G is claimed to ensure consistent hygiene, with cleaning solutions flowing through all internal parts of the filler. Cleanliness and durability Dry pressurisation keeps liquid particles out of the pressurisation circuit, reducing foam and improving cleanliness. No sliding gaskets or lubrication are needed, and the bottle handling system ensures bottles move along a single, flat plane, thus further reducing the risk of contamination. The mobile vent tube allows real-time adjustments to the filling level, enhancing flexibility and efficiency. It also contributes to cleaner decompression (snifting), reducing product loss and foam. “Our system is equipped with advanced capabilities to effectively manage an occasional bottle burst,” says Sipa.When such an event occurs, sensors instantly identify it, and separators actively protect crucial components like the filling valve and swirl device. The single gasket in contact with the bottle, found within the centering cup, is ingeniously designed for swift and easy cleaning using high-pressure water. “This thoughtful engineering not only mitigates potential impact, but also guarantees a quick and seamless recovery process without requiring manual intervention”. SIPA Hall C6 – Booth 301
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