HVAC Duct Line 3 – Sheet Metal Air Duct Forming Production Line
Integrated Fabrication: Automatically performs decoiling, leveling, beading, notching (sharp notch & TDF notch), shearing, and folding in one continuous process.
High Working Speed & Capacity: Feed speed up to 15 m/min; handles galvanized sheets from 0.5 mm to 1.5 mm and stainless steel from 0.4 mm to 1.0 mm.
Precision CNC Control: Equipped with Taiwan Yonghong CNC system and high-resolution touchscreen, with options to upgrade to Mitsubishi or Siemens.
Industrial Durability: Cr12MoV vacuum-quenched forming rollers, GCr15 bearing steel shafts, and H13 high-hardness cutting blades.
Overview & Production Capabilities
The ADL 3 Auto Duct Production Line 3 is a high-efficiency, fully automatic CNC integrated air duct production line specifically developed for HVAC ventilation duct manufacturing facilities. It automatically transforms coiled galvanized steel into ready-to-assemble plug-in rectangular duct blanks in a single, continuous workflow.
Featuring high automation, rapid changeover cycles, and consistent accuracy, it eliminates manual layout, shearing, and corner-notching, significantly boosting daily duct production while saving both labor and floor space.


Workstations & Integrated Functions
- Electric Coil Decoiler: Equipped with dual coil holders (2 sets of expanding cores), driven by independent frequency-controlled motors for synchronized uncoiling.
- Multi-Functional Main Machine: Combines material leveling, structural grooving/beading, notching (sharp notch and TDF flange notch), and accurate hydraulic shearing.
- Integrated Sheet Folding Unit: Supports standard flat plate shearing or automated “L”-section bending ready for TDC/TDF seam closing.
- CNC Touchscreen Controller: Taiwan Yonghong computerized control system with intuitive software (customizable with Mitsubishi or Siemens PLC systems upon request).
Technical Parameters (ADL 3 Series)
| Item / Model | ADL 3-1250 | ADL 3-1500 (1550 Customizable) |
|---|---|---|
| Processing Sheet Thickness | 0.5 – 1.5 mm | 0.5 – 1.5 mm |
| Processing Sheet Width | 1250 mm | 1500 mm |
| Working Speed | 15 m/min | 15 m/min |
| Max. Coil Weight | 7 Tons | 7 Tons |
| Overall Dimensions (L×W×H) | Main: 2850×1850×1400 mm Decoiler: 2200×1850×1300 mm |
Main: 2850×2200×1400 mm Decoiler: 2200×2200×1300 mm |
| Total Power | 12 kW | 12 kW |
| Machine Weight | 4.2 Tons | 4.8 Tons |
| Length Processing Accuracy | ±0.5 mm | ±0.5 mm |
| Diagonal Accuracy | ±1.0 mm | ±1.0 mm |
| Shearing / Bending Error | ±0.2 ~ 0.3 mm | ±0.2 ~ 0.3 mm |
| Applicable Materials | Galvanized: 0.5–1.5mm Stainless steel: 0.4–1.0mm |
Galvanized: 0.5–1.5mm Stainless steel: 0.4–1.0mm |
| Coil Inner Diameter | Φ480 – Φ610 mm | Φ480 – Φ610 mm |
| Leveling Accuracy | ≤ ±0.1 mm/m | ≤ ±0.1 mm/m |
| Model Changeover Time | ≤ 15 min | ≤ 15 min |
Component Brands & Specifications
| Component | Brand / Standard Configuration |
|---|---|
| Main Motor | Top domestic brand – Shanghai Huyuan |
| Oil Pump & Valve Unit | Nantong Oukaide |
| Oil Cylinder | Top domestic brand – Beijing Huaeder |
| Linear Guide Rail & Slider | Nanjing Gongyi |
| Roller Shaft | Bearing steel (GCr15), high-temperature quenched & tempered, durable |
| Forming Rollers / Wheel | Cr12MoV alloy steel, vacuum-quenched & precision-turned, wear-resistant |
| Main Bearings | Imported SKF or HRB (Harbin) precision bearings |
| Cutting Blade | H13 tool steel, vacuum-quenched, high hardness, fast shearing & extended lifespan |
Technical Specifications & Blueprint Data
Workstations & CNC System
Parameters Data Sheet
Component Configurations
Factory Workshop & Equipment Details
CNC Control Touchscreen Podium
Main Leveling & Shearing Unit
Shearing Outlet & Cut Sheets
Electric Decoiler Frame
Loaded Decoiler Feeding Coil
Drive Transmission & Beading Rollers
Complete Line Assembly
Manufacturing Facility & Stock
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