Increasingly, a trend is emerging where components and subassemblies are presented to an assembly line in some form of tray. For years dds has been making tray handling devices that allow multiple trays to be loaded into a buffer, presented one at a time for loading or unloading and finally restacked back in a buffer area. From pneumatically operated inline systems to over-and-under and random access tray changers, dds has the experience to provide the solution that best fits your application.