Something to use...Gluer Guide...Types of Gluing Heads
Contact heads apply the glue when the paper comes in contact with the glue tip at the bottom of the glue head, similar to a spring-loaded ball-point pen. (See figure 3) Glue is fed by gravity through a hose to the glue head. It looks a lot like a hospital IV setup. Care must be used to keep the tips clean, especially with a gravity-fed system. 

Non-Contact heads apply glue when an electronic signal triggers dispersal of a predetermined amount of glue as the paper passes beneath the heads. (See figure 4) The heads do not come in contact with the paper. The glue is under constant presssure in the line(s) with compressed air, and the glue reservoir can be placed on the floor. The glue head(s) are normally provided with a purge valve for testing or removing glue, A non-contact head with a pressurized gluing system needs less maintenance than the gravity-fed systems. 
Floor Model Folders . . . .Table-top Folders. . . .Paper Cutters
Paper Drills. . . .Finishing Equip. . . .Specialized Application Equipment
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Last Updated January 24, 2005