Round Duct Elbow Making Machine — New | GZHCH, Guangzhou, China | Machine Matcher

The GZHCH Round Duct Elbow Making Machine (also known as a Gorelocker) is available in both electric and hydraulic configurations, each capable of two core functions: lock seam processing and lock seam connecting. Together, these functions allow fabricators to produce round fittings — elbows and reducers — for round duct systems.

The machine features two separate workstations — a flanging station and a seam closing station — which work simultaneously. The seam closing station is specifically designed so that tension during lock pressing is directed to a single point, guaranteeing maximum lock density and speed. A set of knurled rollers helps operators work faster while maintaining consistently high-quality elbows and reducers across every piece produced.

Why Choose This Round Duct Elbow Making Machine?

Producing round duct elbows and reducers with a consistent, tight lock seam is critical to both airflow performance and finished appearance — a poorly formed seam can compromise duct integrity. GZHCH's dual-workstation design addresses this by running flanging and seam closing simultaneously rather than sequentially, improving both productivity and consistency compared to single-station equipment.

The choice between electric and hydraulic models gives buyers flexibility based on their material thickness and diameter range requirements — the hydraulic model handles thicker material (up to 1.5mm) and identical diameter range, while the electric model is suited to slightly thinner material (up to 1.2mm) with a broader minimum diameter capability.

Machine Specifications

Electric Model (DCP-1250T)

• Thickness: 1.2mm
• Diameter: φ100–1250mm
• Weight: 560kg
• Dimensions: 2310×850×1030mm

Hydraulic Model (DCE-1250Y)

• Thickness: 1.5mm
• Diameter: φ125–1250mm
• Weight: 775kg
• Dimensions: 2700×920×1100mm

Elbow Welding Machine (complementary equipment, Model HCH-63)

• Diameter: φ150–1000mm
• Thickness: 1.2mm+1.2mm
• Weight: 200kg
• Dimensions: 1300×600×1600mm

Elbow Welding Machine (Model HCH-SW1000)

• Diameter: φ100–1000mm
• Length: 50–1000mm
• Overlap: 6mm
• Speed: 2m/min
• Copper wire: φ2.0–φ2.2mm
• Thickness: 0.4–1.2mm
• Weight: 900kg
• Dimensions: 2800×1000×1600mm

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

Condition Available: New

Key Features

• Two separate workstations — flanging and seam closing — operating simultaneously
• Tension during lock pressing directed to a single point for maximum lock density and speed
• Knurled roller set for faster operation and consistent quality
• High productivity design
• High safety level and user-friendly operation
• Available in electric or hydraulic configurations to match material and diameter requirements
• Complementary elbow welding machines available for joining elbow segments

Applications

• Round duct elbow and reducer fabrication
• HVAC ductwork fitting production
• General round duct component manufacturing

Who This Machine Is For

• HVAC duct manufacturers and fabricators
• Ventilation equipment suppliers producing round duct fittings
• Sheet metal contractors specializing in round duct elbows and reducers

Frequently Asked Questions

What's the difference between the electric and hydraulic models?
The hydraulic model (DCE-1250Y) handles slightly thicker material (1.5mm vs. 1.2mm) but has a narrower minimum diameter (φ125mm vs. φ100mm) compared to the electric model (DCP-1250T).

How does this machine ensure a strong lock seam?
The seam closing station is designed so that tension during lock pressing is directed to a single point, guaranteeing maximum lock density and consistent seam quality across every piece.

Can this machine produce both elbows and reducers?
Yes. The lock seam processing and lock seam connecting functions allow the machine to produce round fittings including elbows and reducers.

Is there a matching welding machine for joining elbow segments?
Yes. GZHCH offers complementary elbow welding machines (Models HCH-63 and HCH-SW1000) for joining fabricated elbow sections.

How does the dual-workstation design improve productivity?
The flanging and seam closing stations work simultaneously rather than sequentially, increasing overall throughput compared to single-station equipment.

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, in either electric or hydraulic configuration, from a manufacturer with HVAC ducting machinery experience since 1986.