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Automatic Duct Flange Machine from China Suppliers | Ventilation & Fire Pipe Flange Frame Factory V4-2

Introducing our V4-2 Automatic Flange Machine, designed specifically for the unique challenges of thin material flange forming. With over 20 years of experience in manufacturing cold roll forming equipment, we understand the pain points faced by many in the industry. This machine is expertly crafted for handling 0.4-0.6mm galvanized steel coils, addressing common issues like off-tracks, loose joints, and easy deformation. Ideal for producing ordinary ventilation duct flanges or fire pipe flange frames, it operates seamlessly in one pass without the need for secondary grinding or correction. As a trusted factory among China's leading suppliers, we offer a hassle-free solution for small to medium processing plants and construction teams seeking reliability and efficiency. Choose our V4-2 Automatic Flange Machine for your flange forming needs and experience the difference in quality and performance
    Contact us LIDING
    30 +
    Years of Experiences
    500+
    clients worldwide
    CE
    certification
    Automatic Duct Flange Machine air Duct Flange Frame Ventilation Duct Manufacturing Flange Machine (1).jpg
    Product Details

    LIDING

    Why do professionals choose LIDING flange machines?

    Optimized for thin materials, unbeatable forming accuracy

    Most flange machines on the market work fine with thick materials, but they struggle with 0.4-0.6mm thin galvanized sheets—they run off track, wrinkle, and leave loose joints. We’ve tweaked the roll profile curve for over a decade, so thin materials run as steady as a rock. The dimensional error of the formed flange frame is controlled within 0.5mm, and the joints fit perfectly. No need to hammer and correct on site, just install directly. The scrap rate is more than 10% lower than ordinary machines.

    Unmatched Production Efficiency & Labor Savings

    4-ton heavy frame, built for nonstop operation

    Don’t underestimate this 4-ton weight—it’s all solid thick steel plate welded together. Many cheap machines cut corners on the frame, making them light and wobbly when running fast, with loud noise and frequent breakdowns. Our machine runs at full 6m/min for 8 hours straight, as stable as if it’s rooted to the ground. It has low vibration and low noise, so workers can work comfortably next to it, and the failure rate is almost negligible.

    High-Grade Materials & Long Service Life

    Ridiculously easy to operate, saves you the salary of a senior technician

    The imported touch screen interface is crystal clear, all parameters are marked in English, and common flange sizes can be saved as presets. No need to hire expensive senior technicians. Any ordinary worker can master it after watching a 30-minute video and practicing twice. One person can handle the whole process of feeding, production and discharging, cutting labor costs in half directly.

    Precise Forming Meeting International Standards

    No hassle after-sales, respond within 3 hours

    The worst thing for construction projects is a broken machine with no one to fix it, delaying the schedule. Our technical team is online 24/7, responds to messages within 3 hours, and provides free remote troubleshooting. All wearing parts are replaced for free during the warranty period. If on-site service is needed, our engineers can fly to any country in the world, providing one-stop installation, commissioning and training.

    Intelligent PLC Control & Easy Operation

    Standard Production Process

    • 1 Galvanized Steel Coil Loading
    • 2 Automatic Feeding & Leveling
    • 3 14-Station Continuous Roll Forming
    • 4 Hydraulic Precision Fixed-Length Cutting
    • 5 Finished Flange Frame Automatic Discharging
    Standard Production Process

    Frequently Asked Questions

    Q: Can LIDING flange machines handle thin sheets without wrinkling?
    Yes. While standard machines struggle with thin sheets, LIDING has optimized the roll profile curve for over a decade. Our machines form 0.4-0.6mm thin galvanized sheets smoothly, ensuring stable feeding, no wrinkling, and perfectly fitting joints.
    Q: What is the advantage of the 4-ton heavy frame?
    The 4-ton frame is constructed from solid, welded thick steel plates. Unlike lighter alternatives, this heavy-duty frame eliminates wobbling and minimizes vibration at high speeds (up to 6m/min), leading to low-noise operation, high forming accuracy, and a drastically reduced failure rate.
    Q: Is the operation complicated for new workers?
    Not at all. The machine features an imported touch screen with full English parameters and preset options. An operator can master the entire process—including feeding, production, and discharging—after just 30 minutes of instruction and practice.
    Q: How fast is your after-sales response time?
    We provide 24/7 technical support with a guaranteed response time of within 3 hours. We offer remote troubleshooting, free replacement of wearing parts during the warranty period, and on-site deployment of engineers worldwide for installation and training.
    Q: What is the step-by-step production flow of the machine?
    The standard process consists of: Galvanized Steel Coil Loading → Automatic Feeding & Leveling → 14-Station Continuous Roll Forming → Hydraulic Precision Fixed-Length Cutting → Finished Flange Frame Automatic Discharging.

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