Heat sealers or Pouch Sealers are devices which seal plastic packaging like pouches, bags etc. with the application of heat. There are three basic types of heat sealers which are applicable in pouch packaging applications.
Use of short burst of electricity through resistance wire to bring a pouch to their melt point and weld the two sides of the pouch together.
Large and expensive sealers owing to bigger size and higher volume capacity, which use moving belts to run a continuous production line.
Used for various specialty packaging purposes made by drawing air out of the pouch before automatic sealing.