Generally, L bar sealer working with shrink wrapping machine together. And the cutter is the main part of the L bar sealer. Also is the spare part of the machine. But how to protect the cutter. let's YUPACK describ the maintaince of the cutter as following.

1.After working everyday,the knife must be wiped by the release agent.The moving parts must be use the lubricant.

2.The silicon strip need better protection.If damage, you should change it in time.

3.When you want to change the cutter knife,please loosen the fixed chuck.Take out the cutter and clean the groove.Then, assemble new one knife and fixed.