Round Duct Flange Machine — New | GZHCH, Guangzhou, China |

The GZHCH Round Duct Flange Machine (also known as a Section Bending Machine) uses steel strip coils to roll-form an angle bar — used as a round flange — then automatically cuts the finished workpiece to length, producing components with a clean appearance and accurate dimensions. It is purpose-built for the ventilation round duct flange industry, offering a more efficient and cost-effective alternative to using traditional standard angle steel.

Compared to sourcing pre-made standard angle steel, roll-forming the flange in-house from steel strip coil delivers higher processing efficiency and lower material costs, while the machine's compact, reasonably designed footprint allows fabricators to improve production efficiency without a large capital outlay. The machine is controlled via PLC and HMI systems for precise, repeatable operation.

Why Choose This Round Duct Flange Machine?

Traditional standard angle steel is a fixed, pre-manufactured product — buyers have limited flexibility on dimensions and typically pay a premium for material they haven't shaped themselves. GZHCH's Round Duct Flange Machine flips this by roll-forming flange angle bar directly from steel strip coil in-house, giving fabricators direct control over dimensional accuracy while reducing processing cost compared to buying finished angle steel.

The basic configuration includes an unpowered decoiler, main forming machine, rivet hole punching unit, and automatic cutting unit — covering the full production sequence from raw coil to finished, punched, and cut flange components in one integrated line.

Machine Specifications

Round Duct Flange Machine (Model HCH-RF1600)

• Diameter: φ300–1800mm
• Rivet hole: φ4mm
• Thickness: 3.0mm
• Weight: 1200kg
• Dimensions: 4150×3000×1450mm

Round Flange Clamp Welding Machine (Model HCH-RW, complementary equipment)

• Diameter: φ300–2000mm
• Thickness: 1.5–4mm
• Weight: 280kg
• Dimensions: 1000×1000×1600mm

Detailed parameters available on request from GZHCH's sales team.

Condition Available: New

Basic Configuration

• Unpowered decoiler
• Main forming machine
• Rivet hole punching unit
• Automatic cutting unit
• HMI control

Key Features

• Higher efficiency and lower processing cost compared to traditional standard angle steel
• Compact, reasonably designed footprint for improved efficiency at lower cost
• PLC and HMI control for precise, repeatable operation
• Accurate dimensions on every finished workpiece
• Complementary round flange clamp welding machine available for joining flange sections

Applications

• Ventilation round duct flange production
• HVAC ductwork fabrication
• General round duct component manufacturing

Who This Machine Is For

• HVAC duct manufacturers and fabricators
• Ventilation equipment suppliers producing round ductwork
• Sheet metal contractors specializing in round duct flange components

Frequently Asked Questions

How does this machine compare to using standard angle steel?
Compared with traditional standard angle steel, roll-forming the flange in-house is more efficient and lower cost, since the machine processes raw steel strip coil directly rather than requiring pre-manufactured angle steel stock.

What diameter range does this machine cover?
The HCH-RF1600 model covers diameters from φ300mm to 1800mm.

What's included in the basic machine configuration?
The basic configuration includes an unpowered decoiler, main forming machine, rivet hole punching unit, automatic cutting unit, and HMI control.

Is there a matching welding machine for joining flange sections?
Yes. GZHCH also offers a Round Flange Clamp Welding Machine (Model HCH-RW), covering diameters from φ300mm to 2000mm and thicknesses from 1.5mm to 4mm.

What control system does this machine use?
The machine is controlled via PLC and HMI systems for precise, repeatable operation and accurate dimensions.

Is financing or staged payment available?
Yes. A deposit secures your order and begins production, with the remaining balance due only once your machine has been built, inspected, and is ready to ship.

Should I buy new or used?
This model is available new, from a manufacturer with HVAC ducting machinery experience since 1986.