HOGI Industrial Fan Flanging Machine

HOGI industrial fan flanging machine is an indispensable piece of specialized metal-forming equipment in the fan manufacturing industry. It is primarily used to flange the edges of fan casings (cylinders), fan inlets (inlet cones/collectors), or impeller hubs—bending them by 90 degrees or to a specific angle—to facilitate subsequent duct connections and flange assembly, or to enhance the structural strength of the casing.

Key Advantages of HOGI Industrial Fan Flanging Machines
1. Zero-waste, Integrated Forming: Traditional methods involve cutting steel strips, rolling them into flanges, and welding them onto the fan casing. In contrast, a flanging machine forms the flange directly from the casing itself. This eliminates multiple processing steps—such as flange blanking, rolling, leveling, welding, and grinding—thereby saving on both raw materials and labor costs.
2. Superior Coaxiality and Airtightness: The machine produces flanges with exceptional roundness and flat end faces. This ensures minimal vibration during high-speed fan operation and effectively eliminates air leakage at the connection points.
3. Multifunctionality (Flanging + Punching + Stiffening Ribs): Modern, high-end fan flanging machines typically integrate **hydraulic punching** capabilities. This allows bolt holes to be punched directly into the flange simultaneously with the flanging process, enabling a streamlined, single-step operation for both flanging and punching.

Hydraulic Flange Forming Machine — Edge Flanging Operation

Cylinder Flanging Machine — Tank End FormingIndustrial Axial Fan — Flanges Bending Application

Ventilation Fan — Flanging Punching Machine

1. Key Application Scenarios for Fan Flanging Machines
In industrial fan manufacturing, different components have specific requirements for the flanging process:
Fan Housing/Casing: Flanging is performed on both ends of cylindrical casings to create integrated flanges for connection to ducts or other fan units. Compared to welded flanges, integrated flanges offer superior coaxiality and effectively prevent air leakage.
Inlet Cones/Bell Mouths: Sheet metal is spun and flanged to form streamlined inlet shapes, reducing air resistance and enhancing fan efficiency.
Impeller Shrouds/Hubs: The hubs or front shrouds of certain centrifugal fan impellers also require precision forming via flanging machines.
2. Core Working Principles and Technical Classifications
Fan flanging machines typically integrate edge-rolling, spinning, and hydraulic forming technologies. They are primarily categorized into the following two mainstream configurations:
Horizontal Flanging Machine
Structural Features: The workpiece is positioned horizontally, and the spindle rotates on a horizontal axis. They are usually equipped with central clamping devices or vacuum suction cups to secure the fan cylinder.
Advantages: Suitable for processing fan casings with significant length and moderate diameter (e.g., axial fan casings). Driven by hydraulic cylinders, forming rollers gradually press and fold the edge of the rotating casing.
Vertical Flanging Machine
Structural Features: The workpiece is placed vertically on a rotating table, with forming rollers operating from above or the side.
Advantages: Suitable for processing components with large diameters and relatively low heights (e.g., large centrifugal fan inlets, large-diameter casing flanges). The vertical configuration facilitates easier loading and unloading, and gravity has less impact on the deformation of large-diameter, thin-gauge sheet metal.

Technical Support & Services

🔧Installation & Commissioning

Professional on-site setup and calibration of your flanging punching machine for optimal performance.

📋Operator Training

Hands-on training for CNC programming, punching pattern setup, and routine maintenance procedures.

⚙️Permanent Lubrication Support

Factory-sealed bearings — no maintenance needed. Replacement service available when required.

🔄Custom Mold Design

Design and manufacturing of custom flanging molds and punching dies for specific customer requirements.

🛡️2-Year Warranty

Comprehensive warranty coverage on CNC system, hydraulic components, and structural frame.

HOGI HGFB Heavy-Duty Series — Automatic Flanging & Punching Machine (With Molds)

Industrial Fan Blower Flanging Machine — Flanging Process Diagram

Axial Fan Centrifugal Fan Flanges — Completed Flange Profile

Video

HOGI Automatic Hydraulic Flanging Punching Machine — Live Demonstration

Live Demonstration Highlights

Watch our HOGI automatic hydraulic flanging punching machine in action — available in HGF series (flanging only) and heavy-duty series (flanging + punching with molds). This video showcases CNC drive technology, absolute encoder punching synchronization, and adjustable clamping pressure for industrial fan and ductwork applications.

• CNC Drive Flanging Operation: See the full touch screen CNC control in action — digital control of flanging diameter, thickness, and speed. The machine delivers stable flanging work with superior efficiency and safety compared to older flanging machine types.
• Absolute Encoder Punching Synchronization: Watch the punching system using absolute encoder positioning to synchronize hole locations with ±0.5mm repeat accuracy. Programmable hole count and spacing — round holes or waist slots based on customer requirements.
• Adjustable Clamping Pressure Demonstration: Live demonstration of clamping pressure adjustment via CNC system. Prevents plate slippage on different material thicknesses (1mm to 6mm) — productivity 50-80% higher than old-type flanging machines.
• Wide Processing Range: See the machine processing flanges from 100mm to 1600mm diameter, with flange width from 6mm to 50mm. Applications include axial fans, centrifugal fans, industrial ductwork, and tank cylinders.

Engineered for Industrial Fan, HVAC & Valve Industries

As demonstrated in the video, HOGI flanging punching technology is optimized for industrial fan housings (axial and centrifugal), ventilation ductwork, valve flanges, and tank cylinders. The combination of CNC drive, absolute encoder punching synchronization, permanent lubrication, and adjustable clamping pressure delivers faster production, lower maintenance, and superior flange quality. Processing diameter from 100mm to 1600mm (customizable), thickness from 0.4mm to 6mm, supporting stainless steel, carbon steel, and galvanized sheet. HOGI provides complete installation, operator training, custom mold design, and spare parts support worldwide.

Get Video Consultation & Flanging Machine Quote