Welding slat length
The length of the welding slat for sealing bags provided in the vacuum sealer. In fact, this is the
maximum seam length that the device can create; the size of the open side of the package should not exceed this length, otherwise it will not be possible to vacuum and seal the package normally. If bags in rolls are used for packaging, the length of the welding slat corresponds to the maximum width of the roll. And powerful industrial models have large slats on which several packages can be placed at once.
Suction power
Suction power provided by the vacuum sealer.
This parameter directly characterizes the capabilities of the device to create a vacuum. Suction power is the difference between normal atmospheric pressure (1 bar) and the lowest pressure that this model can create inside the package. For example, a figure of 0.8 bar means that the packer can create a pressure of 1 – 0.8 = 0.2 bar. Accordingly, the higher the number in this point, the more powerful the sealer, the deeper the vacuum it creates.
In general, if the products are packed at home for relatively short storage (or vacuuming is combined with freezing), this indicator can be ignored. But for professional use, high suction power is fundamental.
Features
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Bottle Vacuuming. The device's ability to remove air from bottles. This process helps extend the shelf life of liquids that react with air—specifically, wines and certain types of vegetable oils. Special stoppers with valves are used for bottle vacuuming, and they are usually included with the device, though it's worth verifying this detail separately.
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Double Seal. Sealing packages with a double seam—two parallel seams a few millimeters apart from each other. This method enhances packaging reliability: even if one seam is defective, there's a high probability that the other will remain intact.
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Vacuum Level Adjustment. The ability to choose the level of vacuum for the packaging. This provides additional options to tailor settings for specific situations. For long-term storage, a maximum vacuum is needed, but for delicate products, the vacuum level can be lowered so that the tightly compressed package does not damage them. Note that this implies having several programs, each with its own vacuum level, rather than just the ability to stop the process on command; if this function is absent,
automatic vacuuming occurs.
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Roll Container. The presence of a container for packing film rolls in the device's body. This feature allows keeping the packaging material readily at h
...and. The container is usually equipped with a mechanism for easy unwinding, and often, though not necessarily, includes a built-in film cutter (see the relevant section).
— Built-in Film Cutter. The presence of a built-in film cutter in the packaging device. The proprietary cutter allows for neatly cutting the required amount of packaging material without resorting to scissors or other additional tools.
— Liquid Collection Container. The presence of a special container in the packaging device to collect liquid drawn in by the vacuum pump along with the air being pumped out. This feature is highly desirable when packaging products with a high moisture content: instead of entering the pump or spilling outside, the liquid will accumulate in the container, from where it can be easily poured out.
— Seal (sealing without vacuum). A feature designed exclusively for sealing a bag without air removal. When the Seal mode is activated, the vacuum sealer heats the edge of the bag and seals it tightly, creating a strong seam. This mode is used when the goal is simply to close the package—such as sealing an already vacuumed product, closing an open packet of products, portioning, or packaging liquids without a vacuum to prevent leakage. Seal can also be used after manually removing air or when vacuuming is interrupted at a desired stage to maintain the neat shape of soft or delicate products (like bread or berries). This mode is convenient for working with various types of packages and allows flexible packaging process management.
— Stop (Cancel). The Stop function in vacuum sealers allows for the immediate cessation of the current vacuuming or sealing process with the press of a button. This is especially important when handling delicate products that can be damaged with full air removal, such as soft berries, pastries, or tender meats. With the Stop feature, users can manually control the vacuum level: for example, halting air removal at the desired stage and promptly proceeding to sealing, maintaining the product's shape. Furthermore, Stop facilitates quickly interrupting the process in case of an error or necessity to adjust packaging, making the vacuum sealer's use more convenient and safe.
— Manometer. An integrated device that shows the level of vacuum inside the package or container during air extraction. It allows the user to monitor in real-time how much the air is rarefied, which is especially important for packaging different types of products—from hard to delicate. Vacuum sealers with a manometer enable more precise manual stopping of the process (e.g., via the Stop button) when the desired vacuum level is reached to prevent deformation of delicate products, package rupture, or liquid drawout. The presence of a manometer makes working with the vacuum sealer more convenient and professional, particularly when packaging meat, fish, cheese, berries, sauces, or other products with varied structures.Control
Control panel device of the vacuum sealer.
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Button-based. A classic control system of the vacuum sealer using physical buttons on the body. This solution is considered reliable and intuitively understandable, especially for users who prefer simplicity and tactile feedback. Each function (vacuuming, sealing, stopping, etc.) has a separate button, which simplifies operation and reduces the likelihood of errors.
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Touch-based. A modern format for controlling the vacuum sealer using a touch-sensitive panel. Instead of physical buttons, flat touch zones with backlight or pictograms are used. This interface makes the device more stylish, easy to clean, and modern in appearance.
Material
The main material used in the construction of the body of vacuum sealer.
— Plastic. Plastic is inexpensive and quite practical, but noticeably inferior to metal in terms of strength, heat resistance and scratch resistance. Therefore, it is mainly used in devices that are not designed for large volumes of work and high loads — namely, manual and low-power desktop vacuum sealers.
— Metal. Metal cases are extremely strong and reliable, but they are more expensive and weigh more than plastic cases. Therefore, they are found mainly in powerful industrial models, for which strength and reliability are of decisive importance.
— Plastic / metal. Usually, in this case, plastic cases are meant, in which especially critical places are reinforced with metal inserts. This option is typical mainly for desktop models of intermediate and advanced levels. See above for details on plastic and metal; Here, we note that such a combination makes it possible to combine the advantages and, to some extent, mutually compensate for the shortcomings of both materials. So, the cases are not as expensive and heavy as all-metal ones, and at the same time more reliable than all-plastic ones.