RS Pro Carton Taping Machine. A range of RS Pro carton sealers, designed to work by applying pressure-sensitive tape to your carton or cardboard box. Reliable and provide a fast and effective method of sealing. Features and Benefits. Metal frame carton sealer does not fold the box For use with 50mm width tape with a 75mm core diameter Cost effective. Application Information. Ideal for reusable packaging, paper recycling and warehouse application