Under the stress with the claws, the polyethylene swiftly cools and solidifies, completing the sealing system. Immediately after sealing, the cutter inside the claws cuts the packaging within the sealing area. Our machine has a single calendar year warranty and our machine's cam/splitter/air distributor has lifetime circle guarantee. R&D Section https://www.linpack.com/news/vacuum-packaging-machines-what-to-consider-before-making-a-purchase