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

Looking for reliable cold roll forming equipment? Our V4-2 automatic flange machine, proudly manufactured in China, is designed specifically for processing 0.4-0.6mm galvanized steel coils. With over 20 years of experience, we, as leading suppliers and factory of cold roll forming solutions, understand the common challenges faced in thin material flange forming. This innovative machine effectively addresses issues like misalignment, loose joints, and deformation. Whether you need to produce standard ventilation duct flanges or fire pipe flange frames, the V4-2 guarantees a seamless process without the need for secondary grinding or corrections. Ideal for small and medium processing plants as well as construction teams, invest in our automatic flange machine for efficiency and reliability
    30 +
    Years of Experiences
    500+
    clients worldwide
    CE
    certification

    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

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

    Frequently Asked Questions

    Q: How does LIDING flange machine perform with thin materials?

    LIDING flange machines are highly optimized for thin materials (0.4-0.6mm galvanized sheets). With a refined roll profile curve developed over a decade, the machine ensures stable forming without running off track or wrinkling, keeping the dimensional error within 0.5mm.

    Q: What is the advantage of the 4-ton heavy frame?

    The 4-ton frame is constructed from solid, thick welded steel plates. This heavy-duty build guarantees stability, low vibration, and minimal noise even during high-speed, continuous 8-hour daily operations at 6m/min, drastically reducing breakdowns.

    Q: Is the machine easy to operate for non-technical staff?

    Yes. The machine features an imported touch screen with clear English parameters and preset options. Ordinary operators can learn to manage the entire feeding, production, and discharging process after just 30 minutes of video training, saving labor costs.

    Q: What kind of after-sales support do you provide?

    We offer a 3-hour response guarantee with 24/7 online technical support, free remote troubleshooting, and free replacement of wearing parts during the warranty period. We can also dispatch engineers globally for installation and training.

    Q: What is the standard production process of the flange machine?

    The automated workflow includes: 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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