PREDA Auto Duct Line 3 is a highly integrated, fully automatic production line built for efficient and standardized rectangular air duct manufacturing. It combines sheet leveling, punching, beading, cutting and folding into one continuous workflow, with stable running, high precision and strong consistency.

Adopting a heavy-duty rigid structure, it ensures long-term reliable operation and is perfectly suitable for galvanized steel sheets commonly used in HVAC ductwork. With a high level of automation and user-friendly control, it greatly reduces labor demand and material waste, sharply improves production efficiency, and delivers ducts with uniform size and tight, airtight joints.Cost-effective, easy to maintain and space-saving, this line is an ideal core equipment for small and medium-sized duct factories. It helps you boost productivity, lower production costs and enhance the overall quality of your duct products, making your business more competitive in the ventilation and sheet metal industry.