The Round Flange Punching Machine is a fully automatic CNC device for flange processing. Driven by a servo motor, it auto-positions accurately for flanges (φ250～φ3600mm) with ±0.1mm indexing accuracy. It features a user-friendly TFT interface, H13K molds (HRC60°, quick-changeable), and a double-beam four-point support design to ensure long-term punching precision. Widely used for hole processing of air duct round flanges, it reduces material waste and boosts efficiency.