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High-Quality PDF Steel Coil Flange Profile Machine - China Suppliers & Factory for HVAC Duct Production

Introducing the Liding GDF PDF steel coil flange profile machine, an innovative solution crafted by our company in China, backed by over 20 years of expertise in cold roll forming. This high-efficiency, high-precision integrated production equipment is specifically designed for the mass manufacturing of GDF/PDF flange ventilation ducts tailored for HVAC systems. Our machine meets the demands of duct manufacturers, HVAC engineering contractors, and prefabricated building component factories, highlighting user-friendliness for various industrial production environments. As a leading supplier, we ensure that our factory produces equipment that fulfills the rigorous needs of stable, high-volume production, supporting the growth and efficiency of your operations
    Contact us LIDING
    30 +
    Years of Experiences
    500+
    clients worldwide
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    Product Details

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    Why do professionals choose LIDING flange machines?

    Easy To Operate & Fully Automatic Control, Big Labor Savings

    This production line adopts an imported PLC control system with an industrial touch screen operation interface, all parameters are visualized and adjustable, and common duct specifications can be saved as one-click presets. No need for professional senior technicians, ordinary workers can fully master the equipment operation after a short period of training, and one worker can manage the whole production line, which cuts labor costs by more than 80%. The whole process is fully automatic, supporting forward, reverse, emergency stop, and stepless speed regulation, easily adapting to large-batch and small-batch customized production.
    Unmatched Production Efficiency & Labor Savings

    Heavy-Duty Industrial Structure & Long Service Life

    The equipment adopts a 24000*3800*1300mm overall heavy-duty welded frame with a net weight of 10000kg, which is welded with thick steel plates as a whole and undergoes strict stress relief treatment, ensuring no deformation or shaking during long-time high-load continuous operation. The 30kw high-power power system ensures stable power output during continuous production. The core forming rollers are made of high-quality GCr15 bearing steel, which can be upgraded to Cr12mov alloy steel with heat treatment up to HRC62-64°, with super wear resistance and 3 times longer service life than ordinary steel, low failure rate and less maintenance in the whole life cycle.
    High-Grade Materials & Long Service Life

    High Precision Forming & Fully Meet Industry Standards

    Multi-station continuous roll forming structure and imported high-precision control system ensure stable dimensional tolerance and high straightness of the finished ducts. The formed flange joints are tightly fitted with zero air leakage, no on-site modification, no material waste, greatly reducing installation cost and improving project quality. The whole machine complies with CE and ISO international standards, and the finished products fully meet the strict requirements of commercial HVAC engineering, fire protection engineering and industrial ventilation projects.
    Precise Forming Meeting International Standards

    Reliable Global After-Sales & Full-Process Quality Assurance

    We provide full-process quality assurance for each equipment: raw material incoming inspection, production process full inspection, pre-delivery full-load test run, and we provide video outgoing-inspection and complete machinery test report for each machine before delivery. We provide 1-year full warranty for the whole machine, free online technical support for life, and free replacement of defective parts within the warranty period. Our after-sales engineers are available to service machinery overseas, providing one-stop on-site installation, commissioning and operation training services for global customers.
    Intelligent PLC Control & Easy Operation

    Standard Production Process

    1 Galvanized Steel Coil Loading
    2 Automatic Feeding & Leveling
    3 18-Station（as actually designed） Continuous Roll Forming
    4 Hydraulic Precision Fixed-Length Cutting
    5 Finished Flange Frame Automatic Discharging
    Standard Production Process

    Frequently Asked Questions

    How does the LIDING flange machine help in saving labor costs?

    The machine features an imported PLC control system with an industrial touch screen interface. With visualized parameters and one-click presets, ordinary workers can fully operate the line after short training. One worker can manage the entire production line, cutting labor costs by over 80%.

    What materials and structure are used to ensure the machine's long service life?

    LIDING flange machines utilize a heavy-duty 10,000kg overall welded frame made of thick steel plates with stress relief treatment. The core forming rollers are constructed from high-quality GCr15 bearing steel, which can be upgraded to Cr12mov alloy steel with heat treatment up to HRC62-64° for 3 times longer service life.

    Does the finished product comply with HVAC and engineering standards?

    Yes. The multi-station continuous roll forming structure and high-precision control system ensure tight-fitting flange joints with zero air leakage and high straightness. The machine complies with CE and ISO international standards, fully meeting the requirements of commercial HVAC, fire protection, and industrial ventilation projects.

    What is the standard production process of the LIDING flange machine?

    The automated process follows these steps: Galvanized Steel Coil Loading → Automatic Feeding & Leveling → 18-Station Continuous Roll Forming → Hydraulic Precision Fixed-Length Cutting → Finished Flange Frame Automatic Discharging.

    What warranty and after-sales support do you provide?

    We offer a 1-year full warranty for the entire machine, free lifetime online technical support, and free replacement of defective parts within the warranty period. Additionally, our after-sales engineers are available to travel overseas for on-site installation, commissioning, and operation training.

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