Case sealers are machines used in packaging to securely close boxes or cases. They apply adhesive tape or glue to the seams of the boxes, ensuring that the contents are protected during storage and transportation. This process helps maintain product integrity and prevents tampering. These machines come in various types, including manual, semi-automatic, and fully automatic models. Manufacturers often use case sealers in warehouses and distribution centers to improve efficiency and speed up the packaging process. By automating the sealing of boxes, businesses can reduce labor costs and minimize errors.