The Model 2159GBM is capable of running one or two lanes of production. It can be configured to run in-line with an extruder or use parent rolls of tube or pre-slit material to make side- or bottom-sealed bags. Side seals or bottom seals are applied in the blanket and drum section. The film web is folded over onto itself two times to reduce the web width. A series of perforations are placed between the side seals or next to the bottom seal to allow for separation of the bags.