Sealing machines are devices used to close packages securely, ensuring that products remain fresh and protected from contamination. They are commonly used in various industries, including food, pharmaceuticals, and electronics. These machines can seal different types of materials, such as plastic, foil, and paper, using heat, pressure, or adhesive methods. There are several types of sealing machines, including vacuum sealers, impulse sealers, and continuous band sealers. Each type is designed for specific applications and can vary in size and complexity. By providing a reliable seal, these machines help maintain product quality and extend shelf life.