Axial Flow Fans
01 · Airflow Principle
How an Industrial Axial Flow Fan Moves Air
An axial flow fan moves air approximately parallel to the fan shaft. Its straight-through airflow path and compact structure make it suitable for large air volume and relatively low-resistance ventilation. Long ducts, filters and other high-resistance systems should be reviewed separately before choosing between an axial fan and a centrifugal fan.
For a detailed introduction to axial airflow, working principles and common fan types, see What Is an Axial Flow Fan?
01
Air Inlet
Straight intake · low resistance
02
Impeller Rotation
Blade force · axial acceleration
03
Axial Air Delivery
Large airflow · straight path
04
Air Discharge
Wall · duct · process outlet
Confirm airflow, pressure, fan diameter, blade angle, duct resistance, installation method, working temperature, power supply and motor protection before selection.
02 · Working Condition
Choose an Axial Flow Fan by Working Condition
An axial flow fan should not be selected only by casing diameter. Begin with the required duty point and installation arrangement, then confirm whether the project needs a general tube axial fan, a process cooling fan or a specialist mine and tunnel ventilation fan.
Duct Axial Ventilation
GD30K2-12
Pipeline ventilation, duct air supply, factory exhaust and equipment-room ventilation.
View GD30K2-12 →Steel Mill Air Cooling
Wire Rod Cooling Fan
Controlled large-volume airflow for wire rod cooling sections and rolling lines.
View Cooling Fan →Workshop Air Exchange
T35-11 / BT35-11
Large-volume, low-resistance air exchange for workshops, warehouses and short ducts.
View T35-11 / BT35-11 →Mine & Tunnel Duty
Dedicated Mine Fan Range
Long underground ducts require dedicated pressure, safety and installation review.
View Mine & Tunnel Fans →03 · Core Axial Flow Fan Products
Core Industrial Axial Flow Fan Products
These four product pages are published directly under the Axial Flow Fans category and form the primary product entry for general industrial axial ventilation and process cooling duties.
Product boundary: the FB explosion-proof electric fan above is for equipment cooling and fixed local circulation. It is not the same duty as an FBD duct-connected local ventilation fan used for long-distance mine airflow.
04 · Specialized Axial Fan Families
Specialized Mine & Tunnel Axial Fan Directions
These axial fan families belong to the dedicated Mine & Tunnel Ventilation Fans system. They are shown here to complete the axial fan product picture without changing the site's product-category boundary. Final selection must follow airflow, pressure, duct resistance, project stage and safety requirements.
Category boundary: these six products remain part of the dedicated Mine & Tunnel Ventilation Fans family. They are included here because their airflow principle and fan structure belong to the broader industrial axial fan system.
05 · Current Published References
Published Product Data for Preliminary Direction
These values come from the current product pages and are reference ranges only. Final selection still depends on the operating point and installation condition.
T35-11 / BT35-11
General Axial Flow Reference
Airflow: 1,500–67,900 m³/h
Total pressure: 39–474 Pa
Fan size: No. 2.8–11.2
Common motor range: 0.18–7.5 kW
Total pressure: 39–474 Pa
Fan size: No. 2.8–11.2
Common motor range: 0.18–7.5 kW
GD30K2-12
Duct Axial Fan Reference
Fan size: No. 6 / 7 / 8 / 9 / 10
Airflow: 4,800–41,000 m³/h
Pressure: 74–324 Pa
Reference motor: 0.75–7.5 kW
Airflow: 4,800–41,000 m³/h
Pressure: 74–324 Pa
Reference motor: 0.75–7.5 kW
Steel Mill Cooling Fan
Reference Fan-Bank Configuration
Airflow: 99,260 m³/h per fan
Pressure: ≈2,430 Pa
Motor: 90 kW per fan
Reference arrangement: 8 fans per cooling section
Pressure: ≈2,430 Pa
Motor: 90 kW per fan
Reference arrangement: 8 fans per cooling section
FB Electric Fan
Fixed-Point Mine Duty Reference
Power range: 0.55–30 kW
Airflow: 81–1930 m³/min
Common voltage: 380 / 660 V
Primary duty: equipment cooling / local circulation
Airflow: 81–1930 m³/min
Common voltage: 380 / 660 V
Primary duty: equipment cooling / local circulation
06 · Selection Path
Axial Flow Fan Selection Path
Axial flow fan selection should begin with the required airflow, system resistance and installation arrangement. Blade type, drive configuration, motor protection and construction material should then be reviewed according to the actual operating conditions.
01
Airflow Demand
Required m³/h · air-change target
02
Static Pressure
Duct resistance · filters · louvers
03
Installation Layout
Wall · roof · duct · airflow direction
04
Fan Configuration
Blade · drive · motor · material · protection
Required airflow, static pressure, duct size, installation position, gas temperature, dust or corrosion conditions, noise limits, motor protection, power supply and quantity should be confirmed before quotation.
07 · Duty Boundary
When a General Axial Fan Is Not the Right Direction
Large Airflow · Low Resistance
General axial fans are a strong direction for workshop ventilation, wall exhaust, equipment-room cooling and short ducts.
Long Mine / Tunnel Ducts
Dedicated mine and tunnel fans should be reviewed where duct distance, pressure loss, leakage, reversibility and safety become critical.
Higher System Resistance
Filters, baghouses and long resistance-heavy duct systems may require a centrifugal fan instead of a general axial fan.
08 · Related Applications
Axial Fan Application Paths
Workshop Ventilation
Large-airflow factory air exchange, wall exhaust and equipment-room ventilation.
View Workshop Solution →Steel Mill Cooling
Wire rod controlled cooling and metallurgical fan-bank systems.
View Steel Mill Solution →Tunnel & Construction Ventilation
Tunnel axial fans for construction-stage duct ventilation and operation-stage tunnel exhaust or longitudinal ventilation.
View Tunnel Ventilation Fans →
09 · FAQ
Axial Flow Fan Questions
What is an industrial axial flow fan mainly used for?
It is mainly used for large-volume ventilation where system resistance is relatively low, such as workshops, warehouses, wall openings, equipment rooms and selected duct systems.
When should I use a centrifugal fan instead?
Long ducts, filters, baghouses and other higher-resistance systems may require a centrifugal fan because the required static pressure can exceed the practical range of a general axial fan.
What is the difference between T35-11 and BT35-11?
T35-11 is the general industrial configuration. BT35-11 is a project-based explosion-proof configuration and requires the hazardous-area requirement, gas group, temperature class and applicable certificate to be confirmed.
How is the FB electric fan different from FBD?
The FB electric fan on this category page is intended for equipment cooling, fixed-position ventilation and local circulation. FBD is a counter-rotating press-in local ventilation fan for duct-connected underground air supply.
Are SDF and SDS the same type of tunnel fan?
No. SDF is used for construction-stage ducted fresh-air supply. SDS is a tunnel jet fan used for longitudinal airflow and smoke-control support in completed road tunnels.
What information is needed for quotation?
Provide airflow, pressure or duct resistance, duct size, installation position, medium, temperature, voltage, frequency, motor requirement, quantity and destination.
Axial Fan Selection & Quotation
Send the Airflow, Pressure and Installation Conditions
Send airflow, pressure or duct resistance, duct size, installation position, medium, temperature, voltage, motor requirement, quantity and destination. QIYUE FAN can review the suitable axial fan direction and configuration before quotation.
Request Axial Fan Selection → Send Fan Requirements →Additional Platform Product Listing
The automatic product list below is supplemental. Use the core axial product section and specialized axial fan family section above as the primary product path.
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![T40 Axial Flow Fan]()
T40 Axial Flow FanT40 axial flow fan is designed for general ventilation and air exchange in factories, warehouses, offices and buildings.read more
The series covers No.2.5 to No.10, with 4-blade impellers and... -
![HTF-Ⅱ Double-Speed Fire Smoke Exhaust Axial Fan]()
HTF-Ⅱ Double-Speed Fire Smoke Exhaust Axial FanHTF-Ⅱ Double-Speed Fire Smoke Exhaust Axial Fan combines normal ventilation and emergency fire smoke exhaust in one fan system.read more
Low-speed operation is used for daily ventilation, while... -
![HTF-ⅠHigh-Temperature Fire Smoke Exhaust Axial Fan]()
HTF-ⅠHigh-Temperature Fire Smoke Exhaust Axial FanHTF-Ⅰ High-Temperature Fire Smoke Exhaust Axial Fan is designed for emergency smoke extraction and high-temperature ventilation in fire protection systems.read more
The series is used in buildings,... -
![DWT-Ⅰ Low-Noise Axial Roof Exhaust Fan]()
DWT-Ⅰ Low-Noise Axial Roof Exhaust FanDWT-I Low-Noise Axial Roof Exhaust Fan provides large-volume, low-pressure rooftop ventilation for factories, warehouses, workshops and industrial buildings, with project-based airflow, noise and...read more -
![GD40 High-temperature Axial Flow Fan]()
GD40 High-temperature Axial Flow FanGD40 High-Temperature Axial Flow Fan is designed for industrial hot-air circulation, drying systems, furnace and kiln ventilation, heat-treatment equipment, and elevated-temperature process...read more -
![GD30 High-Temperature Axial Flow Fan]()
GD30 High-Temperature Axial Flow FanGD30 High-Temperature Axial Flow Fan delivers 4,800–41,000 m³/h airflow for industrial drying, hot-air circulation, furnace ventilation, heat-treatment, and elevated-temperature exhaust applications.read more -
![FB Series Mine Explosion-Proof Electric Fan]()
FB Series Mine Explosion-Proof Electric FanFB Series Mine Explosion-Proof Electric Fan is designed for equipment cooling and local air circulation in underground mines and fixed ventilation points. With an explosion-proof motor, compact...read more -
![T35-11 / BT35-11 Axial Flow Fan]()
T35-11 / BT35-11 Axial Flow FanT35-11 / BT35-11 axial flow fan is a direct-drive industrial ventilation fan designed for large airflow and low-resistance air exchange. It is suitable for workshop ventilation, warehouse exhaust,...read more -
![Steel Mill Wire Rod Air Cooling Axial Flow Fan]()
Steel Mill Wire Rod Air Cooling Axial Flow FanSteel Mill Wire Rod Air Cooling Axial Flow Fan is designed for wire rod cooling sections in steel rolling lines. Each fan provides large airflow for controlled air cooling after wire rod forming,...read more -
![GD30K2-12 Axial Flow Fan]()
GD30K2-12 Axial Flow FanGD30K2-12 Axial Flow Fan is designed for duct ventilation and industrial air conveying systems. It can be connected as part of a pipeline and is suitable for factories, chemical plants, paper...read more
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