Appalachian Machine Inc CNC tube benders are designed for both general and precision bending applications in a wide variety of industries such as HVAC, aerospace, automotive, and furniture. Our RD-series CNC tube bending machines will save you money by providing maximum flexibility while offering the latest in features and advanced technology. Appalachian Machine Inc benders can be used as stand along machines or building blocks to create a fully automated fabrication cell. All machines can be coupled to auto loaders with weld-seam detectors and unloaders for lean operations.