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Glue-applied labeler uses nozzles, not rollers

When a peanut producer asked for a glue-applied labeler that used a hot melt nozzle system rather than roller-based glue application, P.E. Labelers was up to the task.

Shown here is a bottle that has just had adhesive applied by the jetting elements of the hot melt nozzle system.
Shown here is a bottle that has just had adhesive applied by the jetting elements of the hot melt nozzle system.

P.E. Labelers, founded in Italy in 1974 and now a part of ProMach, builds a variety of labeling equipment, including both pressure-sensitive and glue-applied labelers. Recently the firm received a request from a North American customer for a custom version of P.E.’s MODULAR TOP machine. The customer, a producer of peanuts, wanted a nozzle-application system as an alternative to the conventional glue roller for the application of pre-cut paper labels on PET containers. The customer hoped to achieve three things through this approach: reduced maintenance, a savings on the cost of adhesive, and significantly greater flexibility in format changes.

The engineers at P.E. decided to use the LabelStar M hot melt nozzle system from Robatech to meet these customer objectives. With it comes Robatech’s Concept Diamond tank melter for thermoplastic adhesives and RobaVis software. All were integrated into a MODULAR TOP labeling machine designed for a maximum label height of 140 mm (5.51 in). The machine is capable of handling a variety of different label heights because the SX 8/EL/F/NV/SP spiral application head contains five jetting elements for the label pick-up function. If a label’s height is modest, only as many of the jetting elements as necessary will be activated. But if a label’s height is near the 140-mm maximum, all five jetting elements can be activated.

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