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

The Liding GDF PDF steel coil flange profile machine, proudly developed and manufactured in China, showcases over 20 years of expertise in cold roll forming. This high-efficiency and high-precision integrated production equipment is specifically designed for the mass production of GDF and PDF flange ventilation ducts utilized in HVAC systems. Ideal for duct manufacturers, HVAC engineering contractors, and prefabricated building component factories, this machine meets the robust demands of stable, high-volume production. With its core advantage of easy operation, it stands out among suppliers in the industry, making it a vital asset for industrial production settings
    Contact us LIDING
    30 +
    Years of Experiences
    500+
    clients worldwide
    CE
    certification
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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 2400*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

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

    Frequently Asked Questions (FAQ)

    Q: How easy is it to operate the LIDING flange machine?

    The machine adopts an imported PLC control system with an industrial touch screen. All parameters are visualized, and common duct specifications can be saved as one-click presets, allowing ordinary workers to operate the line with minimal training.

    Q: What material is used for the forming rollers?

    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° for superior wear resistance.

    Q: Does the machine meet international quality and safety standards?

    Yes, the entire machine complies with CE and ISO international standards, making it fully qualified for commercial HVAC, fire protection, and industrial ventilation projects.

    Q: What is the structure and weight of the flange machine?

    It features a heavy-duty welded structure measuring 2400*3800*1300mm with a net weight of 10000kg, ensuring no deformation or shaking during long-term high-load operations.

    Q: What after-sales service and warranty support do you provide?

    We offer a 1-year full warranty, lifetime free online technical support, free replacement of defective parts within the warranty period, and overseas on-site installation and training services.

    Q: What is the standard production process flow?

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

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