According to different films, there has two kinds machines. One is packing POF film, such as semi-auto L bar sealer and full-auto L bar sealer. Other one is packing PE film, such as semi-auto sleeve sealer and full-auto sleeve sealer, even the tray type sleeve sealer machine.

Let YUPACK explain the packaging height limited when use this machines:
1. Hot sale semi-auto L bar sealer FQL-450A mainly use for packing low packing capacity and small size packing. Knife size is 550*450mm.But packing size is also limited by the package height. Mean packing size is（L+H）<550mm.(W+H)<450mm. Max.packing height is 150mm.

2. Full-auto L bar sealer shrink wrapping machine LA460E,knife size is L600*W450mm. Packing size is also limited by the package height same as the semi-auto L bar sealer. Max.packing height is 110mm. Packing size is（L+H）<600mm.(W+H)<450mm.

3. Side sealer, for example GPL5545C, Max.packing height is 150mm.If higher than 150mm, need change the knife structure, will be arrive 200mm.
All of these three kinds machine,can be customized the knife size and packing size according to your products size. More other questions, please ask YUPACK company workers.