|  | Product Flow ControlThis Trine Model 4400 upgrade incorporates an expanded PLC with additional I/O, two sets of line eyes, and photo eyes to manage the flow of containers into the labeler under various operating conditions. This capability is standard on Trine Model 4500 and 4600s. 
                 Un-manned operation, regardless of line conditions, reduces labor cost.     Automatic speed control reduces line stoppages. Automatic flow-gate control eliminates the need for operator intervention.   
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