Zero downtime labeling is achieved by employing redundant applicators, automatic crossover electronics and precision slides mounts on the applicators allowing labels to be replenished without stopping the machine.  Please refer to the videos below.

Beer Can and Bottle Labeling System 300ppm / Zero Downtime

https://www.youtube.com/watch?v=GHfs9OzOxoY

High Speed Front Back Labeling Oil Bottles

3-Panel Zero Downtime Labeling System for Large Plastic Containers

Front & Back & Wrap Zero Downtime Labeling System for Various Size Mustard Containers

Front & Back & Top Zero Downtime Labeling System for Hummus Containers

High Speed Labeling System for Various Food Containers

Front & Back Zero Downtime Labeling System for Large Maple Syrup Containers

3-Panel Zero Downtime Labeling System on Bakery Container