Generally, its no problem use the shrink wraping machine, such as L bar sealer 24 hours.BUt if just use the machine and have no maintaince will be not better for the machine.But whats the precautions when use the shrink wrapper.

1.When the machine use 6hours,the temperature of the cutter will higher,will stick the film.You should take off the cutter and wear it up.You can't touch it by your hand in order to protect you.

2.When need shrink lots of products.It will be better to adjust temperature not so high.In order to lengthen shrink packoing machine cutter.Also need to note the sealing time.