On the assembly line of a certain aquatic product processing plant in Southeast Asia, boxes of ready-to-eat shrimp are being packaged at a rate of 60 packages per minute. Through the observation window of the nitrogen-filled packaging machine, you can see the light blue nitrogen accurately injected into the bag like mist - this is the third-generation intelligent nitrogen-filled packaging system developed by ply-pack at work. For this type of seafood with high moisture content, traditional packaging often changes color and deteriorates due to residual oxygen. Now, equipment equipped with a dynamic nitrogen-filled algorithm can sense the density and shape of the product in real time, automatically adjust the airflow intensity, and stably control the nitrogen replacement rate to more than 99.5%.
For easily oxidized foods such as nuts and coffee beans, ply-pack's nitrogen-filled packaging machine uses multi-layer composite film materials and adaptive sealing technology. When a high-end Japanese coffee brand introduced the equipment, the oxidation loss rate of its nitrogen-filled coffee beans dropped from the industry average of 1.8% to 0.3% during the three months of transportation to Northern Europe. This is due to the built-in nitrogen barrier system of the equipment, which uses micron-level laser sensing technology to monitor the oxygen concentration in the packaging bag in real time. Once an abnormality is detected, the secondary nitrogen filling program is immediately triggered to form a double preservation barrier.
In the intelligent workshop of the Moroccan olive oil factory, 12 linked nitrogen-filled packaging machines are sharing data through the Internet of Things hub. When unit A detects the volume fluctuation of olive fragments, unit B immediately adjusts the nitrogen filling parameters synchronously. The cluster response capability of this intelligent production line has increased the factory's daily production capacity by 40% while reducing nitrogen consumption by 15%. The AI learning module equipped with the equipment can also optimize the airflow path based on historical data, such as designing a spiral nitrogen filling trajectory for irregular-shaped fruit and vegetable crisps to avoid product breakage due to airflow impact.
Ply-pack's engineering team recently developed a "pulse nitrogen filling" solution for a South American grain company. By simulating the low-pressure environment of the plateau, the equipment adopts an intermittent nitrogen filling strategy when packaging quinoa, which not only maintains a nitrogen purity of 97%, but also avoids the risk of expansion and rupture of the packaging bag. This ability to accurately adapt to customer scenarios is driving the evolution of food preservation technology towards personalization and intelligence. As the global supply chain's demand for green packaging grows, the next generation of nitrogen-filled packaging machines will integrate biodegradable film materials and solar-powered drive systems to achieve a new balance between preservation performance and sustainability.
From ready-to-eat seafood in Vietnam to smoked salmon in Norway, ply-pack's nitrogen-filled packaging machines have helped customers in 37 countries extend the shelf life of their products by an average of 2.8 times. When the equipment was put into production at the Chilean nut factory, the workshop director pointed to the data on the real-time monitoring screen and exclaimed: "Behind these jumping numbers is the real benefit of reducing 800 tons of food loss each year."
In this fresh-keeping revolution with nitrogen as the carrier, ply-pack continues to redefine industry standards with technological innovation - not only providing equipment, but also providing food protection solutions throughout the supply chain.
