In the era of green buildings and energy-efficient HVAC systems, Spiral Duct Machines have become a hot topic across the global construction and ventilation industry. With stricter energy codes and higher standards for indoor air quality, contractors are shifting towards spiral ductwork for its superior performance and long-term value. Compared to rectangular ducts, spiral ducts offer less air leakage, lower pressure loss, and easier installation—making them the preferred choice in commercial, industrial, and cleanroom projects. As demand rises, manufacturers are seeking reliable and automated solutions to produce high-quality spiral ducts quickly and efficiently. At Hecheng Source Machinery, our Spiral Duct Machines are designed to meet these evolving needs. Our machines can process galvanized steel, stainless steel, and aluminum, supporting multiple diameters and thicknesses. With PLC control, fast forming speed, and durable structure, our equipment is ideal for high-volume production. Backed by nearly 10 years of experience and over 3,000 units sold globally, we provide not only machinery but also complete duct forming solutions—including customization, on-site training, and lifelong technical support. Whether you’re a local workshop or a global HVAC supplier, our spiral duct machines will help you enhance your output and product quality.   Now is the time to upgrade your production with smart, reliable, and efficient equipment. I. Spiral ducting Machine's Features: Spiral ducting machine is used for producing HVAC round duct. Spiral duct is made of metal strip rolled into a spiral bite wall of the thin tube, round, no welding, no leakage.  The spiral ducting machines produced by HCY company have high yield and stable pipe diameter, and good bite, good sealing, long-term innovation. 1.Spiral ducting machine with patented mold which has its own patent and easy to adjust, save the metal strip. 2.High-speed synchronous cutting system 3.PLC control 4.Can be on-site construction 5.Can be adjusted 6.High-quality products, high-quality services 7.The system can handle galvanized sheet, aluminum 8.automatic roll out of equipment 9.Can produce a variety of different diameter spiral tube II. Technical Parameters 1. Name: Spiral ducting machine HCY-2.0-2000 2. Diameter range: Φ100-Φ2000mm 3. Tube length: 100-12000mm 4. Strip width: 137mm 5. Lock seam: Outside tube,on the inside on request 6. Material Galvanized sheet: 0.4-2.0mm 7. Strip speed: 38m/min 8. Dimension: 3400x2070x2720mm 9. Weight: 2300kg 10. Control system: PLC automatic control 11. Main motor power: 16.5KW 12. The power of cutting motor: 4KW 13. Electrical: 380V/50HZ/3PH Voltage customized 14. Welding machine: Huanyuan 100A

The spiral ductwork machine is specifically designed for the production of spiral ducts—also known as spiral seam thin-walled ducts. The origin of spiral duct technology can be traced back to the military industries of Western countries, where it was initially used in ventilation systems for warships and marine vessels. With broader adoption, spiral ducts gradually found their way into civilian applications such as trains, subways, and mining operations. By the year 2000, usage in the U.S. had surged, with spiral ducts being employed in 95.6% of office buildings, shopping malls, and subway systems. In residential buildings, central air conditioning systems using spiral ducts reached a 72.5% adoption rate.   Advantages of the Spiral Ductwork Machine   The spiral ductwork machine offers flexible processing of various duct sizes within a defined diameter range—without the need for traditional pipe molds. By adjusting the length of steel coils and making proper setup calibrations, steel strips can be used in place of molds for efficient duct formation. The machine also comes equipped with a high-speed synchronized cutting system that ensures precise cuts according to required duct lengths.   Spiral ducts, made from coiled metal strips, feature a spiral seam and thin-walled design with a circular cross-section. These ducts have no welding seams, offer excellent airtightness, and are ideal for both air delivery and bulk material conveyance. As a result, they are becoming the preferred alternative to conventional rectangular ducts.   BLKMA's spiral ductwork machine is manufactured to high standards, delivering high output, consistent duct diameters, and superior seam and sealing performance. It can process ducts up to 1.5 meters in diameter and ensures high strength and excellent airtightness. The machine allows for rapid transitions between different duct diameters and includes a high-speed synchronized cutting unit to ensure fast processing and stable performance. Additionally, the machine is environmentally friendly, safe, efficient, and offers a long service life—earning praise from domestic and international clients alike. It has become a trusted solution in the industry.   Scheduled Maintenance for Spiral Ductwork Machine   Check Belts and Wheels During operation, belts may wear or break, and wheels may deteriorate over time. It’s essential to regularly inspect and replace these components to maintain the machine’s optimal functionality.   Replace Lubricating Oil After a period of use, the existing lubricating oil should be replaced. Before adding new oil, thoroughly clean both the internal and external parts of the machine. The oil change interval should be determined based on machine usage, but an annual replacement is generally recommended or adjusted according to the production workload.   Inspect Electrical Wires and Switches Wires and switches may loosen or suffer damage during operation. Regular inspection and timely repairs are crucial. Electrical safety is fundamental to the machine's reliable operation, so proactive checks help eliminate potential hazards.   The spiral ductwork machine is a specialized piece of equipment designed to transform metal sheets into spiral ducts of varying shapes and sizes. It plays a key role in sectors such as construction, chemical processing, mining, and agriculture. To ensure stable, long-term operation, the machine requires proper usage and systematic maintenance. Maintenance protocols should be tailored to the machine's operational history and aligned with manufacturer guidelines. Routine inspections, cleaning, and adherence to the operation manual are essential to prevent malfunctions and minimize production disruptions. 在住宅建筑中，使用螺旋管的中央空调系统达到了72.5％的采用率。  

As the HVAC industry embraces Industry 4.0 and smart manufacturing, the demand for Auto Duct Line equipment has surged in recent months. These fully automated duct production systems have become a trending solution for contractors and manufacturers aiming to boost productivity, reduce labor costs, and enhance product consistency. Auto duct lines integrate multiple stages—such as coil feeding, leveling, notching, punching, shearing, and bending—into a single streamlined process. This innovation drastically shortens production time and improves accuracy, especially for high-volume duct manufacturing. With growing construction activity in commercial buildings, hospitals, airports, and industrial facilities, the market need for high-efficiency duct forming systems is stronger than ever. At Hecheng Source Machinery, we offer intelligent Auto Duct Lines designed to meet modern HVAC production requirements. Our machines feature PLC control systems, modular configurations, and options for TDF flange, angle iron flange, or Pittsburgh lock forming. They support fast changeovers and customization to fit different project demands. As a manufacturer with nearly a decade of expertise and exports to over 80 countries, we provide comprehensive air duct production solutions—from spiral duct machines to complete auto duct lines—with reliable performance and 24/7 customer support. Investing in an auto duct line today means staying competitive in a fast-evolving HVAC landscape. Whether you're upgrading your workshop or expanding your production, Hecheng Source Machinery is ready to deliver equipment that helps you grow smarter.