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An impulse bag sealer is essential in a variety of packaging processes. This machine uses heat to apply an airtight closure to many varieties of packaging and is an important part of quality and safety control. This is particularly important in the food processing industry because an airtight closure is the best way to stave off spoilage. This machine can be scaled up or down to fit most processing needs, and can handle a variety of packaging materials. However, even though it is effective with a variety of plastics, it is not appropriate for closing paper packaging.
Using heat to close packaging has been common for decades, but an impulse bag sealer represents the pinnacle of heating technology. These machines consist of a heating element (normally a wire made from nickel chromium) that’s insulated with synthetic rubbers. The wire is attached to a pair of jaws that are used to grab the package. While in operation, an electrical pulse is sent through the wire, which heats up to operating temperatures in under a second. Following closure, the heating element quickly cools off, making it safer and more efficient to use than constant heat closing devices. Industrial models are often combined with conveyors that can keep a product stream moving. In most cases, this machine is placed just before a palletizer or other loading device.
These machines can be scaled up or down for nearly any process, from simple hand held devices for occasional use to automated models that can handle tons of material every day. Manual devices can also be pedal operated, which strikes a middle ground between handheld models and completely automated devices. However, these devices are usually only designed to close a single package at once, so facilities that deal with a higher degree of volume may need more than one for maximum efficiency.
Even though an impulse bag sealer can’t be used on paper packaging, it is still extremely versatile. Most food packaging is made out of plastic derivatives now and these devices are compatible with most of them. They can work with packaging made from PE, OPP, HDPE, PP, PVC, LDPE, BOPP, MOPP, cellophane and laminates. While they can be configured to produce a variety of seal sizes, they typically create smaller closures, ranging from hairline closures to closures about five millimeters in depth.
The food industry is not the only one that gets a great deal of use out of these devices. The animal feed, pet food, textile, pharmaceutical and medical instrument industries all make use of them. Because they can produce an airtight closure, they are prized for their ability to prevent microbial growth and contamination from dust or microscopic debris. They can also keep insects and other pests out, which is especially helpful in the clothing and textile industries.
These machines are a mainstay in processing facilities that have to package their goods for the consumer. They come in a number of sizes and formats so they can be worked into just about any processing plant.
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