Because the containers that need to be packed are different, such as the containers are divided into bags, bottles, cans, boxes, etc., the materials used are also different, such as sack, cloth, woven bag, plastic, metal, etc. for sealing, these are all different , At present, there is no sealing machine that can pass through in the packaging industry, so it is necessary to use the corresponding sealing machine for packaging. Let's talk about the types of sealing machines. According to the different sealing methods, the sealing machine can be divided into the following types.
　　(1). Hot-press sealing machine is a machine that uses heat and pressure to close packaging containers. The heating elements used include heating plates, heating belts, heating rollers, and so on. ⑵. Fusion sealing machine is a machine that closes the packaging container by melting the sealing part of the packaging container by heating. The commonly used heating methods include ultrasonic, electromagnetic induction and heat radiation.

　　 Stitch-type sealing machine refers to a machine that uses sutures to sew packaging containers. It is mostly used for sealing sacks, cloth bags, and composite woven bags.
(1). The crimping sealer uses a roller to crimp the metal lid and the opening of the packaging container to close the packaging container. The crimping sealer is also called the can sealing machine, which is an important part of the canned food production process. One of the mechanical equipment. (2). Rolling sealing machine refers to a machine that uses a roller to roll a metal cover to deform it to close the packaging container. (3). Rotary sealing machine refers to a machine that closes the packaging container by rotating the sealing device. The sealing device is usually a bottle cap with a thread or a can cap with inwardly curled claws, which is screwed on the bottle or can with a pattern. (4). The ligature type sealing machine uses string and other ligature materials to close the packaging container.