Coffee concentrate is made by extracting coffee essence through a special process, and its characteristics impose strict requirements on packaging. First, it has an extremely high concentration and is rich in coffee oils and flavor compounds. These components are susceptible to oxidation and deterioration when exposed to external environmental factors, resulting in flavor loss. Second, some coffee concentrates contain a certain amount of moisture and undergo processes such as pasteurization, which places high demands on the sealing performance and corrosion resistance of the packaging. Poor sealing can easily lead to bacterial growth or liquid leakage. Additionally, coffee concentrate is mostly used as a ready-to-drink or convenient instant product, so consumers have certain expectations for the portability and structural integrity of the packaging. The packaging must be able to withstand a certain degree of pressure; otherwise, inadequate sealing will likely cause liquid leakage.
This horizontal double pre-made pouch packaging machine fully considers the actual packaging needs of coffee concentrate in its detailed design. In terms of structure, the machine body is made of food-grade 304 stainless steel, which can resist corrosion that may be caused by coffee concentrate. It is easy to clean and complies with food production hygiene standards. The transmission system is driven by full servo motors, ensuring stable operation with low noise. It can precisely control the movements of the pouch-clamping mechanism, filling nozzles, and sealing mechanism, ensuring smooth connection between all processes and reducing the occurrence of malfunctions. The filling mechanism is equipped with drip-proof filling nozzles that are wear-resistant. These nozzles not only prevent chemical reactions with coffee concentrate but also close quickly after filling to avoid liquid dripping that could contaminate the packaging or the machine.
The sealing mechanism adopts a dual heat-sealing design, which allows adjustment of heating temperature and pressure according to the thickness and material of the packaging material (such as composite films, aluminum foil films, etc.) to achieve uniform sealing. The sealed seams are clear, firm, and not prone to cracking. The machine is also equipped with an intelligent control system with a touchscreen operation interface, allowing staff to intuitively set parameters and monitor production progress. Meanwhile, the system has a fault alarm function: if issues such as abnormal filling volume or excessively high/low sealing temperature occur, it will promptly issue an alarm and pause operation, facilitating quick troubleshooting and reducing losses.
Another major advantage of this horizontal double-pouch packaging machine is its wide compatibility with different pouch types, which can meet the needs of different market positioning and consumption scenarios:
Standard three-side sealed bags: The most common type of pre-made pouch, with three sides sealed and one side reserved for filling.
Stand-up pouches: Equipped with a folded bottom, allowing them to stand on their own after filling, which is convenient for shelf display and consumer use.
Stand-up pouches with zippers: Stand-up pouches with added re-sealable zippers.
Four-side sealed flat bags: All four sides are sealed, featuring a neat shape and a large printing area for product display.
Special-shaped bags: Pouches made into various special shapes (such as rounded corners, curved edges, bottle-like shapes, etc.).
This horizontal double-pouch packaging machine can manage two packaging production lines. It accommodates pouches with a width ranging from 65 to 110mm and a length from 100 to 230mm. The filling capacity ranges from 5 to 100 grams, and the packaging speed is 60 to 90 pouches per minute, with an air consumption of 0.7 m³/min. It uses pneumatic suction cups to pick up pouches and needs to be used with an air compressor.
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