The PopLok® Self-locking Tray Former demonstrates its ability to erect 3-tuck chipboard and corrugated trays with a lid. Manufacturer: EndFlex Brand/Model: PopLok® Products: Keywords: tray forming, PopLok, tray former, fold & tuck trays, self locking trays, Eagle Packaging Machinery, fold tuck, roll and tuck trays, eagle packaging machinery, endflex, paxiom, paxiom group, chipboard tray, corrugated tray