Models 70, 80 & 90, Drawbar– Drawbar machines are relatively simple and are the easiest of all VFFS types to operate and maintain. The film is pulled through the machine by the sealing jaws which close at the top of their reciprocating vertical stroke. These models will make pillow, three side seal and four side seal packages. They can be configured to make one to eight packages per cycle depending on package size and style.