A sealing machine, also known as a heat sealer, is a device that is used to seal and protect a wide range of products or items. This machine uses heat and pressure to melt and fuse two materials together, creating a tight and secure seal that prevents contamination, spoilage, or tampering.

Sealing machines come in various types and sizes, depending on the type and size of the product being sealed. Some of the most common types of sealing machines include handheld sealers, tabletop sealers, continuous band sealers, and vacuum sealers.

Handheld sealers are typically used for small items or products, such as food bags or small containers, and can be easily operated with one hand. Tabletop sealers are larger and more robust, and are designed for sealing medium to large-sized items, such as boxes, packages, or large bags. Continuous band sealers are used for sealing long and continuous rolls of packaging material, such as plastic films.