Aero-mechanical conveying systems, often called chain and disk conveyors, comprise of a series of disks mounted onto a central wire rope running within a tubular enclosure. The rope and disks are powered via a sprocket system at one end and are drawn through the enclosure to convey product. The conveying action is via a combination of mechanical and pneumatic movement. These type of conveying systems are useful where line of sight routing is not permissible as they can incorporate numerous direction changes.