A case sealer (also known as a carton sealer) is a specialized packaging machine designed to automatically or semi-automatically seal the top and bottom flaps of cardboard boxes (cases) using adhesive tape, glue, or other sealing materials. 

Semi-automatic Flap-folding Case Sealer - Mootan International Co., Ltd.

Folding cover case sealer，Stainless steel case sealer，Adjustable case sealer，Top-and-bottom sealer，Side sealer，High-speed case sealer，Tape sealer (BOPP tape, reinforced tape)，Hot melt glue sealer，Adhesive sealer，Pressure-sensitive sealer，Flap folder mechanism