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280×280×80mm All Metal AC Axial Fan | Industrial 280mm Cooling Fan
The Hongbo 280×280×80mm All Metal AC axial fan is a large-diameter, heavy-duty industrial fan engineered for maximum airflow in demanding ventilation applications. This 280mm axial fan delivers 2,280–2,570 m³/hr (1,341–1,512 CFM) through an all-metal iron-leaf impeller and aluminum alloy frame, powered by a capacitor-run external rotor induction motor rated up to +105°C. Available in 110V, 220V, and 380V AC, it is built for industrial power systems, large enclosures, and process environments with high continuous heat loads.
Key Features
- All-Metal Iron-Leaf Impeller: Withstands high ambient temperatures and mechanical stress conditions where thermoplastic impellers are unsuitable.
- Maximum Airflow 2,280–2,570 m³/hr: Among the highest volumetric output in Hongbo Motor’s axial fan range, designed for large ventilation volumes in industrial spaces.
- External Rotor Capacitor Motor: Compact motor-impeller integration provides efficient power conversion and stable operation under continuous loading.
- Rated to +105°C Operating Temperature: Suitable for proximity to heat-generating industrial processes, including furnaces, foundries, and power conversion rooms.
- Three Voltage Options: 110V, 220V, and 380V AC (50/60Hz) for single-phase and three-phase industrial power supply compatibility.
- Dustproof Design: Motor and bearing assembly designed to limit dust ingress in industrial environments, supporting reliable long-term operation.
- Aluminum Alloy Frame: Robust mounting structure suitable for heavy panel, bracket, or duct installation in industrial facilities.
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Customization Options
Hongbo Motor supports OEM and ODM orders for this 280×280×80mm All Metal AC axial fan:
- Voltage: 110V, 220V, 380V, or dual-voltage; single-phase or three-phase
- Capacitor specification: Matched to voltage and motor type
- Lead wire: Length and connector type to specification
- Speed grade: RPM adjustment available for targeted airflow output
- Mounting: Flange and bracket configurations adaptable for OEM system integration
- Packaging and labeling: Custom branding and packaging for volume OEM programs
Specifications
| Parameter | Value |
|---|---|
| Size | 280 × 280 × 80 mm |
| Voltage | 110V / 220V / 380V AC (50/60Hz) |
| Airflow | 2,280–2,570 m³/hr (1,341–1,512 CFM) |
| Speed | 2400–2500 RPM |
| Noise Level | 65–70 dBA |
| Weight | 2,803 g |
| Frame Material | Aluminum alloy |
| Impeller Material | Iron leaf (all-metal) |
| Motor Type | Capacitor-run external rotor induction motor |
| Bearing Type | Ball bearing |
| Operating Temperature | -10°C to +105°C |
Applications
This 280mm axial fan is widely used in:
- Large industrial switchgear and transformer rooms: Handles the substantial heat loads generated by high-power electrical distribution equipment.
- Steel mills and foundries: Provides directed ventilation in high-temperature process environments where all-metal construction is required.
- Data centers and server halls: Supplies high-volume exhaust air in facilities with dense server racks and high power density.
- Power generation facilities: Ventilates generator rooms, UPS rooms, and battery storage areas with continuous airflow.
- Large-format industrial machinery: Cools heavy CNC equipment, hydraulic press systems, and industrial compressors.
- Building HVAC and industrial air handling: Integrated into large duct assemblies for factory, warehouse, and commercial ventilation systems.
Why Choose Hongbo Motor
- Over 10 years of focused experience in industrial cooling fan manufacturing
- Products exported to 40+ countries across North America, South America, Europe, and Asia
- Stable production capacity with consistent lead times
- Strong OEM/ODM capability for volume and custom orders
- Reliable quality backed by international certifications
FAQs
What environments is the 280mm all-metal fan designed for?
It is designed for high-temperature and high-load industrial environments — including foundries, power generation rooms, and large-scale manufacturing — where all-metal construction and high airflow output are both required.
How does dustproof design benefit industrial installations?
The dustproof motor and bearing assembly reduces the accumulation of airborne particles in the motor windings, extending service life in environments with sawdust, metal particles, or other contaminants.
What voltage options are available?
Standard models are available in 110V, 220V, and 380V AC (50/60Hz). Dual-voltage configurations are available on request.
What is the noise level at operating speed?
Noise ranges from 65–70 dBA at rated speed. For noise-sensitive environments, please contact us about lower-speed variants.
Do you support OEM orders?
Yes. We support customization of voltage, speed, lead wire, mounting, and packaging. Contact our sales team with your specifications.
What is the minimum order quantity?
MOQ varies by model and configuration. Please contact us directly for details.
Certifications and Quality Assurance
- UL Certification
- CE Certification
- RoHS Compliance
- 3C Certification (China Compulsory Certification)
Manufactured and tested at Hongbo Motor’s 6,000 m² facility in Ningbo, China.
Model Parameter
| Model | Bearing System |
Voltage VAC |
Rreq. Hz |
Current A |
Power W |
Speed RPM |
Noise dBA |
Air Flow | Phase | Capcitor | |
| M3/hr | CFM | ||||||||||
| HB28080HA1-C | 100-125 | 50/60 | 1.2 | 120 | 2400/2500 | 65/70 | 2280/2570 | 1341/1512 | 1 | 4.0uf/250 | |
| HB28080HA2-C | 200-240 | 50/60 | 0.55 | 120 | 2400/2500 | 65/70 | 2280/2570 | 1341/1512 | 1 | 2.2uf/500v | |
| HB28080HA3 | 380-420 | 50/60 | 0.32 | 120 | 2400/2500 | 65/70 | 2280/2570 | 1341/1512 | 1 | / | |
| HB28080HA6-C | 380-420 | 50/60 | 0.36 | 120 | 2400/2500 | 65/70 | 2280/2570 | 1341/1512 | 1 | 2.2uf/500v | |
More Details
Size:280mmx280mmx80mm
Airflow:2280~2570m3/hr 1341-1512CFM
Weight:2803g
Noise:65~70dBA
Impeller:Iron Leaf
Frame:Aluminum Alloy
Lead Wire:The Mostable Wire
Motor:Capacitor-Run External Rotor Induction Motor
Operation Temperature:-10C~+105℃
