Have a look at the tote/carton handling test loop we have in our factory. We have this loop running to test the reliability of parts, the functionality of controls and the robustness of programming software. It has been left running overnight with no supervision without any issues.
As we continue developing the system we will update our website with more photos and video. We are currently adding a tote/carton stacker and destacker to the loop so check back for information on that shortly.