Professional 75cm Foot type impulse sealer Manufacturer

In recent years, vacuum packaging has become very popular, vacuum packaging keeps damp proof, extended shelf life, and reduced storage space. There are various types of vacuum sealing machines available on the market. How to find a suitable vacuum sealer for your product. The following are specially divided into three categories for the vacuum sealers sold on the market (Chamber Vacuum Sealer, Non-nozzle Vacuum Sealer, and Nozzle Vacuum Sealer) introduce advantages and disadvantages. There are other places to pay attention to when buying, hope to help everyone buy a suitable vacuum sealer, and enhance the quality of our product.   ※  Nozzle vacuum sealer         At present, the nozzle vacuum sealer is widely used in the electronics industry. The Nozzle vacuum sealer and Non-nozzle vacuum sealer are also external, The difference is that the nozzle vacuum sealer uses the nozzle to extend into the vacuum bag to extract the air. Available for vacuum flat bags and aluminum flat bags. Non-nozzle vacuum sealer without a nozzle. Therefore, only the strips of the vacuum stripe bag can be used to create a pipeline to allow the air to be drawn out. The reason why the nozzle vacuum sealer has a nozzle, after the vacuum, the nozzle must be retracted into the machine and can be sealed, so when the nozzle moves, a little air enters. Therefore, the vacuum degree of the nozzle vacuum sealer is lower than that of the other two vacuum sealers.         The nozzle vacuum sealer is divided into the pneumatic type and electromagnet due to the driving mode. The advantage of the pneumatic nozzle vacuum sealer is the low sound, the disadvantage is that you need to connect the air compressor. The electromagnetic nozzle vacuum sealer doesn't need to be connected to an air compressor, but the sound is loud during operation.         Most Nozzle vacuum sealers are designed for products with little moisture or powder, add a water filter, keep water and powder in the water filter, Don't allow moisture and powder to flow into the machine, and Avoid damage to parts. If the product itself is water or powder, never choose a Nozzle vacuum sealer, because when pumping, the nozzle extends into the vacuum bag, it will directly remove the water and powder, It's recommended to choose the Chamber vacuum sealer, when the Nozzle vacuum sealer in operating, the way the nozzle is placed and the position of the product are very important, related to the vacuum effect. When the vacuum is recommended, keep the nozzle as close as possible to the product, and avoid sticking vacuum flat bags when pumping, this causes the nozzle to be unable to pump air, but be careful that the nozzle is not blocked the product, it can't be pumping. When operating the Nozzle vacuum sealers, please pay special attention to this technique.         Same to a Non-nozzle vacuum sealer, there are plastic casings for sale in the market. Nozzle vacuum sealer with metal shell (steel plate with powder coating and stainless steel), small size vacuum sealer with plastic casing, cheap price, but long-term operating with high frequency, it's not recommended to buy the Nozzle vacuum sealer with a plastic casing, because the vacuum sealer will generate heat when sealing, use for a long time, the sealing seat with continuing to heat when the temperature is too high, the plastic case may be deformed. Just for household or small amounts of use, a Nozzle vacuum sealer can be purchased in a plastic case. If it's a factory or a long-term operator, it's recommended to purchase a Nozzle vacuum sealer with a stainless steel housing, in addition to not worrying about the deformation of the sealing seat due to high temperature, the vacuum pump installed inside is larger than the Nozzle vacuum sealer with plastic casing, continuous use is not afraid of failure, and the vacuuming ability is also strong.         The Nozzle vacuum sealer is available for a vacuum flat bag, cheaper than a vacuum stripe bag. However, due to the control of the nozzle entering and leaving, the structure is more complicated than the Non-nozzle vacuum sealer. Therefore, the price of the Nozzle vacuum sealer is higher than that of the Non-nozzle vacuum sealer, price comparison with the Chamber vacuum sealer depends on the vacuum pump built into the Chamber vacuum sealer, Nozzle vacuum sealers are more expensive than Oil-less type Chamber vacuum sealer, but is lower than the oil type Chamber vacuum sealer.         Generally, there is only one nozzle of the Nozzle vacuum sealer, it can add nozzles and inflatable functions according to customer needs, most of them are filled with nitrogen, option to pump first and then inflate, or function settings such as inflate and then pump after pumping. In addition, there are also inflatable sealing machines that only inflate, it also uses a nozzle to fill the gas into the vacuum bag. The inflatable has moisture-proof, the advantages of retaining freshness and anti-collision, mostly used in the food industry.         The Band sealer also develops the air extraction function, it also uses the nozzle to suck out the air, which belongs to a Nozzle vacuum sealer, generally known as a Continuous vacuum sealer. The price is much higher than other types of vacuum sealers, and the structure of the Band sealer will also affect the vacuum degree, so the price is also different, to choose a Continuous vacuum sealer, except for the price, the vacuum degree is also a factor to consider.   When purchasing a vacuum sealer, factors to consider include price, the types of vacuum bags it can use, vacuum efficiency, the size and type of products to be sealed, and the operating method. No matter what kind of product you want to vacuum, it's recommended to bring the product to the site for testing before purchasing, test the vacuum effect and understand how to operate it, this will allow you to choose the most suitable vacuum sealer for your needs.  

Why can’t the vacuum effect be maintained after using the vacuum sealer? The following are possible reasons. Users can check by themselves first.   1. The wrong material of packing bags: the material of plastic bags is PE, PP which can’t maintain the vacuum effect. The air will enter into the bags after the vacuum sealer finishing working. It is recommended to choose Nylon bags, Aluminum foil bags which can maintain the vacuum effect for a long time.   2. The sealing line is not sealed well: please check whether the sealing line is complete or not. If the sealing line is not closed, the air will run into the bags. (1) If the bag is too thick, and the vacuum sealer wasn't set for enough sealing time, the heat wasn't enough to seal the bag. If the vacuum sealer can adjust the sealing time, users can add more seconds to test whether the sealing is firm. If the vacuum sealer can't adjust the sealing time, users may need to replace the thinner bag or buy another vacuum sealer with setting sealing time function.     (2) There have also been cases where the bottom seal of the original bag was not sealed properly. In this case, seal the bottom sealing line again before vacuuming.   3.     Vacuum bag styles are not suitable for vacuum sealers: non-nozzle vacuum sealers can't be used for vacuum flat bags. Therefore, if you buy a non-nozzle vacuum sealer, you must pay attention to the style of the bag you use. This vacuum sealer is a must-to-use vacuum embossed bag or Nylon gusset vacuum bag. It is recommended that when purchasing a vacuum sealing machine or vacuum bag, it is more appropriate to confirm with the supplier first.     4.     The vacuum bag is broken: (1) If the package article has acute angles, be careful not to cut the vacuum bag when putting it into the vacuum bag. (2) Vacuum sealer in the process of pumping, when the bag is shrunk to the package, it may be punctured by the packaging.

How a Vacuum Sealer Works   Many friends often ask: "Do I have to use a vacuum bag when using a vacuum sealer?" "Do I have to use special bags when using a vacuum sealer? Can I use flat vacuum bags with non-nozzle type vacuum sealers? Can I use all type vacuum bags with chamber vacuum sealers?" You can find the answer after reading the following instructions.    1. Do we have to use vacuum bags for vacuuming? A: If you only want to remove air, any material can be used. But if you want to maintain the vacuum state for a long time, you must use vacuum bags which are PA (Nylon) material or aluminum foil bags with high airtightness.   2.Does "vacuum" really mean making the bag completely free of gas inside? A: Actually not, the main principle is to reduce the air inside the bag to a level where microorganisms cannot survive, reducing oxidation or product spoilage, keeping items less susceptible to rusting, and maintaining the freshness and shelf life of food inside the bag.   3.Differences in principles between Non-nozzle vacuum sealer and chamber vacuum sealer. A: There are two different principles of air extraction, which also lead to different advantages and disadvantages. (1) Non-nozzle vacuum sealer: Directly extract the air from the bag, and then use heating to melt and seal the plastic bag. Therefore, if you want to package fluids or powders, Non-nozzle vacuum sealers are likely to extract the contents you want to package, or extract contents that should contain moisture. Sometimes it may even cause internal parts to get wet and be damaged.   Most of the vacuum bags seen on the market have patterns on them, which is because most vacuum sealing machines are direct air suction type. When sealing wet items with this type of vacuum packaging machine, it is necessary to form channels for smooth air. These channels are the patterns or folds on the vacuum bags or aluminum foil bags commonly seen in the market. When the air in the bag is reduced, aerobic bacteria cannot survive, so the items can be preserved for a longer period of time. Therefore, whether it is a grid pattern, diamond pattern, or the vacuum channel sealer bags made by our company, they are all designed to facilitate air flow. Therefore, we would recommend using non-nozzle vacuum sealers for items with less water content and larger particles inside.   (2) Chamber vacuum sealer: When the lid is closed, the motor begins to perform the vacuuming action. At this time, the air inside the vacuum chamber and inside the vacuum bag will be affected by the motor and flow, so the pressure inside the vacuum chamber will gradually become negative pressure. At this time, we may observe a phenomenon where the vacuum bag we placed inside is expanded. This is because the speed at which the air is removed from the vacuum bag cannot be as fast as that in the vacuum chamber, which causes the pressure inside the bag to be greater than other parts of the vacuum chamber in a short time. This phenomenon will also cause the air inside the bag to accelerate and leave the bag at the moment the solenoid valve operates, and at the same time, the heating plate will heat and seal the bag.   Since it does not directly vacuum the air out of the bag, there is no need to worry about the moisture inside the bag being drawn out. For items with liquid or powder content, we would recommend using a chamber vacuum sealer. Because the air inside the vacuum chamber is vacuumed out, the bag does not need an additional air extraction duct, so it can be used without embossed vacuum bags. 表單的頂端   表單的底部表單的頂端