There are different types of envelope making machine, with different size and style. But still, they are similar in some ways. They are both used seal the envelops. The process go through like below: Paper feeding, paper locating, horizontal folding, glue applying, longitudinal folding, Press fit, locating, stick pressure-sensitive adhesive tape, relocate, pasting easy-to-tear tape, longitudinally folding and finally completing. After all these process. The Express mail is complete. We also have Chinese red envelope machine, which is used for making Chinese red envelop, the structure is a little similar but cut some process.

Cover ZF-400、280
Cover ZF-323
Cover ZD-248