An auto duct production line is an automated system for manufacturing air ducts used in HVAC systems. The production line includes a series of machines that work together to produce ductwork from raw materials such as galvanized steel, stainless steel, or aluminum.

The typical auto duct production line includes machines for cutting, feeding, punching, folding, seaming and other operations required to fabricate air ducts of different shapes and sizes. The machines are computer-controlled and can be programmed to fabricate ducts according to specific design requirements. The production line is highly efficient and can produce large quantities of ducts with minimal human intervention.