Folder-gluers are machines used in the packaging industry to fold and glue cardboard boxes. They automate the process of assembling flat sheets of cardboard into three-dimensional boxes, which can then be used for shipping and storage. These machines improve efficiency and reduce labor costs by quickly producing large quantities of boxes. Typically, folder-gluers can handle various box styles, including regular slotted containers and auto-bottom boxes. They work by folding the cardboard along pre-scored lines and applying adhesive to secure the folds. This technology is essential for businesses that require consistent and reliable packaging solutions.