Our FR5 vacuum-tool proposal has a bench report showing a seal on one flat aluminium panel. Fine. Our panels come stacked, and the unsupported corners look pretty flexible. I'm still missing how it picks one sheet, carries it without fouling the nest and leaves it there cleanly.
Ask for a review and supervised trial covering the actual stack, single-sheet confirmation, supported panel shape through transfer, and release into your nest. A sealing result addresses only one part of that. Include any separators or surface conditions present in the supplied stack.