The BEL 180 semi-automatic case taper automatically adjusts itself for cases that vary in both width and height. The height and width adjusting mechanisms have locking movements for safety in case of sudden air loss. The adjustments can also be fixed in position for sealing a series of uniform size cases. Cases are taped top and bottom with either 2" or 3" wide tape using Dekka stainless steel tape heads, at speeds of up to 20 cases per minute.