A.C.R.E. 280/281 is an X-ray unit that utilizes a pallet-based transportation system. Castings are placed into a rectangular pallet with appropriate fixtures in order to assure parts stability during transportation around the conveyor system. X-ray devices, both radiation source and detector are handled via a 5 axis C-arm manipulator, controlled by CNC, which allows all angles and perspectives to be achieved around the inspected parts. The standard conveyor belt can host up to six (6) pallets. The pallet quantity can be increased to meet specific customer requirements. This will require more length on the external part of the conveyor belt. The pallet flow and positioning is monitored by an ID system, each pallet has its own identification tag to allow the machine to run with different castings loaded randomly. Each pallet can host one or more parts, depending on parts and pallet sizes.