The Round Flange Forming Machine is a fully automatic CNC equipment specially designed for producing round flanges in ventilation and HVAC systems. Driven by a servo motor, it realizes high-precision automatic feeding, forming and cutting for round flanges (φ250～φ3600mm), with an indexing accuracy of ±0.1mm. Equipped with a user-friendly TFT touch interface and high-hardness quick-change forming molds, the machine adopts a robust multi-roller structure and double-beam frame design to ensure long-term stability and consistent forming precision. It is a core equipment for efficient production of round air duct flanges, which greatly reduces manual operation and material waste, and is widely used in HVAC, ventilation and air purification industries.