Lap seal wrappers use the minimum film width to place an overlap seal under the package with either static or thermal seal film and cut apart downstream by the end seal device. Lap seals use flat film pulled over a forming plow that matches a particular product size. They are popular with applications that run the same product size frequently as the machine requires a unique plow per product.
The Theta model is an automatic intermittent lap sealer designed to run consistent product sizes at moderate speeds.