TDF Flange Forming Machine for HVAC Rectangular Air Duct
Dual-Station Flange & Hook Connector Forming: Features dedicated dual roll-forming stations—one side rolls integral TDF duct flanges, while the opposite side forms matching hook-type flange connectors (clips) without changing tooling.
High Working Capacity (T-12 & T-15): Available in T-12 (0.5–1.2 mm / 18 Ga galvanized steel) and heavy-duty T-15 (0.8–1.5 mm / 16 Ga galvanized steel or up to 1.2 mm / 20 Ga stainless steel plate).
Industrial Hardened Tooling: Built with GCr15 vacuum-quenched forming rollers, thermal-refined 40Cr roller shafts, vacuum-quenched 20CrMoT gears, and authentic Harbin (HRB) precision ball bearings.
Fast & Reliable Workshop Output: Operating speed of 9 m/min (26 ft/min) driven by a 3–4 kW Nanjing Volp motor; arc-welded rigid steel frame with universal voltage support (220V/380V/450V).
Overview & TDF Duct Flange Forming
The TDF Flange Forming Machine (TDF Roll Former) is a foundational, cost-effective sheet metal profiling solution for modern rectangular air duct manufacturing. It rolls integral common-plate flanges directly onto the perimeter of duct panels, eliminating separate angle-iron frames and speeding up on-site ventilation installation.
Equipped with dual-side rolling stations, this machine forms practical, aesthetic, and airtight flange joints while dramatically reducing metal fabrication labor and raw material consumption.


Dual-Side Workstations & Core Functions
The machine incorporates two functional roll-forming stations operating independently on either side:
- TDF Flange Station (Primary Side): Forms continuous, clean TDF common-plate flange profiles directly on the edge of rectangular duct sheets.
- Hook Connector Station (Secondary Side): Dedicated to rolling “hook-type” flange clips (cleats) used to join adjacent duct sections together firmly.
- Quick-Clamping Infeed Guides: Equipped with quick-release levers and precision side rollers to ensure straight sheet feeding and uniform flange profiles.
Technical Parameters (T-12 & T-15)
| Model | Power (kW) | Sheet Thickness Capacity | Weight (kg) | Dimension (L×W×H) |
|---|---|---|---|---|
| T-12 (T12) | 3.0 kW | 0.5 – 1.2 mm (18 Ga Galvanized) | 1000 kg | 2900 × 700 × 1100 mm |
| T-15 (T15) | 3.0 / 4.0 kW | 0.8 – 1.5 mm (16 Ga Galv.) Up to 1.2 mm (20 Ga Stainless Steel) |
1000 kg | 2900 × 700 × 1100 mm |
| Forming Speed | 26 ft/min (approx. 9 m/min) | |||
| Voltage Options | 220V / 380V / 450V (Customizable across 50/60 Hz) | |||
Component Specifications & Material Quality
| Component | Specification & Material Standard |
|---|---|
| Forming Rollers | GCr15 bearing steel, vacuum-quenched for high hardness, long wear life, and rust resistance. |
| Roller Shafts | Thermal-refined 40Cr alloy steel, high-temperature quenched & tempered against deflections. |
| Transmission Gears | 20CrMoT vacuum-quenched gears ensuring smooth, low-noise gear meshing. |
| Bearings | Authentic Harbin (HRB) precision ball bearings instead of traditional pin bearings for higher durability. |
| Drive Motor | 3.0 kW / 4.0 kW Nanjing Volp industrial electric motor. |
| Machine Frame & Mobility | Rigid arc-welded steel frame with heavy baseplate, mounted on heavy-duty swivel casters. |
Technical Blueprint & Specification Sheet

Dual-Station Profiles, Structural Features & Technical Parameters
Factory Workshop & Equipment Showcase

Workshop Angle View

Infeed Side Profile & Rolling Table

Rear Guard & Chassis View

Factory Floor Side Profile

Front Panel & JLKJ Branding
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