The Glue-Folder is a computerized gluing and folding self-mailer machine used to produce one-piece folded self mailers from plain sheets of paper without the need for inserting into envelopes or using pre-glued paper. These mailpieces are referred to as: self mailers, snap packs or snap pack mailers. The Glue-Folder Model 504 glues and folds to 22,000 sheets per hour. Among other features: 1) Microprocessor to program and control machine operation from one panel; 2) Double sheet and jam detectors; 3) Self contained pressurized cold glue system; 4) Completely portable- no need for house air; 5) Capable of C-Fold, V-Fold and Double Parallel folds on the standard model. In addition, a Z-Fold Option is available. The GlueFolder self mailer machine only requires a 220VAC receptacle, and is available in either 50Hz or 60Hz.