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    Everything from a single source: A Krones glass line for Winzer Krems

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    Many process and technology firsts

    Pressure-sensitive labels

    With the commissioning of the new line, Winzer Krems has switched over from traditional cold-glue labels to pressure-sensitive labels made of paper. Bottles will typically be dressed in a shoulder label and a back label, each applied by a dedicated labeling station. The two other labeling stations can be loaded with labels for the next fill order. That saves on changeover time since different export requirements necessitate frequent label changes – up to ten of them per day.

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    With the commissioning of the new line, Winzer Krems has switched over from traditional cold-glue labels to pressure-sensitive labels made of paper.

    Wrap-around cartons

    Bottles are now packed in wrap-around cartons instead of cardboard boxes – by way of a Variopac Pro W. "We use brown uncoated paperboard made of around 80 percent unbleached post-consumer material," says Holzer. "With that, we are supporting sustainability and saving on material with the wrap-around carton format." 

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    Bottles are now packed in wrap-around cartons instead of cardboard boxes – by way of a Variopac Pro W.

    MultiGuide Base clamping starwheels

    Another premiere – not only for Winzer Krems but also for Krones – lies within the filler. The line is one of the first to be equipped with the new MultiGuide Base clamping starwheel, a multifunctional starwheel that replaces all conventional handling parts and comes to grips with all of Winzer Krems' bottles. The biggest benefit is this: During changeovers, no more adjustments need to be made to the starwheels. The infeed worm at the rinser is the only part that needs to be replaced. As a result, the block can be made ready for the next batch in just five minutes or less.

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    The line is one of the first to be equipped with the new MultiGuide Base clamping starwheel.

    UniPure product filtration system

    Winzer Krems wants its customers to enjoy wine that is pure, in the truest sense of the word. For that reason, Winzer Krems has now also installed a new product filtration system, switching over from layer filtration to membrane filtration using a candle filter. The UniPure filtration system removes undesirable particles, suspended matter and microorganisms. Krones put together this unit specifically for Winzer Krems (see box), a process made easier by the system's modular design.

    "The UniPure system now stands directly adjacent to the filler," says Ludwig Holzer. "That gives us a highly compact layout with short product pathways. Our goal was to reduce the distance our wine travels from the cellar to the filler as much as possible." The installation of the wine filtration system upstream of the filler meant that Krones assumed overall responsibility for all filling and process technology on the project.

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    The installation of the wine filtration system upstream of the filler meant that Krones assumed overall responsibility for all filling and process technology on the project.

    UniPure. The details.

    • A product pump in the cellar transfers the crossflow-filtered wine to a coarse filter, which removes suspended and turbid matter. 
    • The product then moves into a buffer tank, where it can be warmed if necessary, and is then passed on to the main filter. 
    • The main filter is a fine filter, which removes yeasts and other product-spoilage organisms. It is designed for tandem operation, meaning that while one filter line is in operation, a second one is in standby mode. That allows for continuous production with one filter line while the other is being backflushed. 
    • After passing through the main filter, the wine then flows on to the filler. A carbonator is installed just ahead of the filler, which can be used as such for white wine or as a deaerator for red wine.
    • In addition, an emptying station and rework tank make it possible to run improperly filled wine back through the filtration system.

    Storage unit for chemicals and smart CIP

    Krones has taken its efforts to be a one-stop shop a step further. Our subsidiary KIC Krones delivers the entire range of chemicals needed for the VarioClean CIP (clean-in-place) system as well as the media for foam cleaning, conveyor lubrication, and chlorine-dioxide generation. Because we know: Krones runs best with Krones. "It was very important to us that we get everything from a single source," says Ludwig Holzer.

    It was very important to us that we get everything from a single source. Erwin HächlLudwig HolzerManaging Director of Winzer Krems

    KIC Krones erected a storage unit for chemicals on one side of the filler to house the following components:

    • Chlorine-dioxide generator, which supplies the rinser with highly concentrated chlorine dioxide (approx. 1.5 parts per million) for disinfection and also delivers low-concentration chlorine dioxide (approx. 0.2 parts per million) for the final-rinsing water in the rinser as well as the water for foam cleaning and the splinter washout system. 
    • Dosing pumps for providing the Krones CIP system with peracetic acid
    • Dosing pumps for the foam cleaning system
    • Conveyor lubrication system

    Also on board: CIP process with intermittent dosing

    Winzer Krems is also deploying a new CIP procedure developed by KIC Krones, which works on the principle of intermittent dosing into the acid tank. The disinfectant is added after the acid cleaning phase, so the disinfectant can do its work to optimal effect on a clean surface.

    In intermittent dosing, the disinfectant is divided into three equal parts. Fresh disinfectant can always be added in precise quantities by way of a mass flow meter. A brief pause between each of the three dosage steps ensures proper mixing. This new procedure eliminates the need for a separate tank for disinfection. In addition, it makes for longer intervals between acid changes and fewer cleaning cycles for the acid tank.

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    "I hate to think how everything would have gone if we hadn't chosen to work with Krones," says Managing Director Ludwig Holzer. Image credits:

    Winzer Krems

    Krones in two words: "commitment and flexibility"

    If you ask Managing Director Ludwig Holzer to sum up the project, he's got a pretty clear response: "Our partnership with Krones is decades strong. And that made everything a bit easier in the face of challenging times of the covid-19 pandemic and supply chain disruptions. Krones' team always demonstrates incredible commitment and flexibility. I hate to think how everything would have gone if we hadn't chosen to work with Krones. After three and a half years of construction, we are still operating right on schedule. Without Krones, that wouldn't have been possible." And Ludwig Holzer knows what he's talking about: He himself has worked at Winzer Krems for 40 years – just as long as Krones lines have been bottling their wine.

    Our partnership with Krones is decades strong. And that made everything a bit easier in the face of challenging times of the covid-19 pandemic and supply chain disruptions. Erwin HächlLudwig HolzerManaging Director of Winzer Krems

    You can easily send a request for a non-binding quotation in our Krones.shop. 

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