

This fully automated U-shaped duct production line adopts a compact, streamlined U-shaped spatial layout, integrating uncoiling, leveling, rib pressing, joint corner seaming, and servo folding into one continuous duct processing step. Equipped with a fully computerized CNC numerical control system and a bidirectional adjustable seam forming unit, the equipment can not only operate stably at a high speed of 15m/min, but also strictly control processing errors within ±0.5mm. This is a powerful tool for HVAC manufacturing that combines high efficiency, precision, and space saving, significantly reducing labor costs and maximizing factory output.
High-Efficiency Fully Automatic U-Shape Air Duct Line
The CNC U-Shape Air Duct Production Line is a fully automated, space-saving solution designed for high-efficiency HVAC duct manufacturing. With a compact U-shaped rightward layout (15m X 5.3m), this line integrates de-coiling, leveling, circular rib pressing, precise corner/square cutting, material transferring, male/female snap button joint forming, and servo-controlled bending into a seamless, synchronized workflow. Driven by an advanced computerized CNC system and a robust hydraulic/pneumatic infrastructure, it processes 0.35-0.55mm galvanized sheets at a swift operational speed of 15m / min with exceptional precision (±0.5mm length tolerance).
Product Features
Technical Parameters For U-Shape Air Duct Line

Process Flow
De-coiling→Leveling & Circular Rib Pressing→Corner Cutting →Cutting→Material Transfer→Forming Male/Female Snap Button Joints(Two Seaming Machines Adjustable in Opposite Directions)→Bending
Technical Parameters
| Item | Specification |
| Material | Galvanized sheet |
| Sheet Thickness | 0.35–0.55mm |
| Coil Width | 1219,1250,1524mm |
| Coil Weight | 7000kg |
| Coil Inner Diameter | Φ508mm |
| Coil Outer Diameter | Φ1200mm(Max) |
| De-coiling Motor | 1.5kW |
| De-coiling Belt | 2HB-3050 |
| FormingStructure | Adjustableinnercoretension,pneumaticbelttension,withpneumaticmaterialpressing |
| Operating Speed | 15m/min |
| Max Sheet Length | 1400mm |
| Min Sheet Length | 500mm |
| Shearing Length | 9999mm |
| Sheet Length Tolerance | ±0.5mm/1000mm |
| Duct Bending Tolerance | ±1mm/1000mm |
| Rib Pressing | Standard "V" shape(groovespacing:210mm) |
| Control System | Fully computerized CNC |
| Main Power Supply | 600V·60Hz·3-phase |
| Total Line Power | Approx.27kW |
| Operational Power | 600V·60Hz·3-phase |
| Hydraulic Pressure | Max14MPa |
| Pneumatic Pressure | 0.5MPa |
| Line Layout | U-shaped, right ward flow |
| Total Length | Approx.15meters |
| Width | Approx.5.3meters |
| Working Height | 940mm |
Production line list
| No. | Item Description | Quantity | Specification |
| 01 | Electric De-coiler | 2 set | |
| 02 | Production Line Main Unit | 1 unit | 11-roller leveling with circular rib pressing, sharp/square mold, includes cutting function |
| 03 | Material Transfer Conveyor | 2 sets | |
| 04 | Roll forming Unit | 2 unit | |
| 05 | Servo-Controlled bending | 1 unit | |
| 06 | Hydraulic System | 2 sets | |
| 07 | Electrical Control System | 1 set |
FAQ
1. How does this machine improve factory efficiency?
It features a fully automated CNC workflow replacing manual feeding, measuring, cutting, and beading. One machine does the work of multiple operators, delivering standardized, high-quality ducts with less labor.
2. Is it easy for ordinary workers to operate?
Our hours
Mon 11/21 - Wed 11/23: 9 AM - 8 PM
Thu 11/24: closed - Happy Thanksgiving!
Fri 11/25: 8 AM - 10 PM
Sat 11/26 - Sun 11/27: 10 AM - 9 PM
(all hours are Eastern Time)
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