The RPG-09L Semi-Automatic Carton Edge Sealing Machine can realize corner sealing of all four outer edges of cartons. This corner sealing machine is equipped with in-line 90 degree box turner to evenly and precisely seal carton corners, which eliminates the need for hand taping of four outer edges and thus reducing labor expenses while ensuring the sealing quality. Parameters should be changed manually to make the case sealing machine applicable for different sizes of cases. Thanks to these features, this semi-auto four edge case sealer is widely used in different industries, including food and beverage, pharmaceutical, electronics, retailing and logistics.