Slitting & Milling
A blade is used to make one incision along of the layers.
This slices the very edge of the envelope, which, like other cutting machines, decreases the risk of damaging the envelopes, contents, and leaves no waste.
A milling machine has an adjustable cut that precisely takes away from the folded edge of the envelope away without any damage to content.
Paper chips are then retained within an integrated chamber or an aspirator.