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Through strong air agitation to form a circulating airflow field, then generate a large simulated natural wind system, which accelerating air circulation in large spaces and greatly improving environmental comfort.
Model: AirTS-F73
Function: ventilation
Features: low noise, energy-saving, good heat dissipation, large air volume, long service life
Control mode: intelligent frequency conversion, wireless control
Quality Assurance
Stable and Durable.
After-sales Service
24H Online.
Low Temperature Rise • Long Service Life • Sizes from 2.6m to 7.3m
The AirTS F73 7.3 meter HVLS fan, also available as a 24ft HVLS fan, is designed for large factories, warehouses, logistics centers, workshops and other high-ceiling spaces requiring wide-area air circulation.
With a 7300 mm (24 ft) diameter, the F73 delivers a maximum airflow of 13,800 m³/min while operating at only 20–53 RPM. Its 1.2 kW PMSM drive provides efficient, low-noise operation and helps distribute air evenly across large indoor areas.
Designed for spaces requiring maximum airflow coverage, the AirTS F73 Large HVLS Fan can serve an area of up to 1,700 m², making it the largest model in the AirTS F-series HVLS fan range.
A 7.3m HVLS fan is particularly suitable for large open buildings where multiple smaller fans would otherwise be required. The large 24-foot blade span moves a high volume of air slowly across a wide floor area, helping reduce stagnant air and improve overall air circulation.
The AirTS F73 is suitable for:
Large manufacturing workshops
Warehouses and distribution centers
Logistics facilities
Aircraft hangars and maintenance buildings
Sports halls and gymnasiums
Exhibition and commercial halls
Agricultural and livestock buildings
HVLS fans are commonly used in large industrial and commercial spaces because their large diameter allows them to distribute substantial volumes of air at relatively low rotational speeds.
The F73 Large HVLS Fan uses a 7.3 meter / 24ft fan diameter, making it suitable for large buildings where wide-area air circulation is required. One fan can cover up to 1,700 m², helping reduce the number of individual ventilation fans required.
With maximum airflow reaching 13,800 m³/min, this 24ft HVLS fan continuously circulates large volumes of indoor air while maintaining a low rotational speed of 20–53 RPM.
The AirTS F73 24ft Industrial Ceiling Fan uses an inner-rotor permanent magnet synchronous motor (PMSM) with rated motor power of 1.2 kW. Compared with conventional gearbox-based configurations, the direct-drive PMSM structure reduces mechanical complexity while supporting stable and low-noise operation.
Despite its large 7.3-meter diameter, the F73 has a rated noise level of 39 dB, making it suitable for industrial environments where continuous ventilation is required without excessive fan noise.
Standard control supports variable-frequency operation, while optional wireless and mobile APP control can be used for multi-fan installations. AirTS also supports centralized control for multiple units, which is useful for large factories and warehouse projects.
| Problem | Our Solution |
| Workshop hot, humid & stuffy | Wide, uniform airflow – temperature drops 5-8℃ |
| Standard motors overheat easily | PMSM motor with low temperature rise, longer life |
| Different space sizes | Full size range 2.6m – 7.3m to match any site |
| High electricity bills | Ultra-low power, as little as 1.5kW, saving up to 70% |
🔹 Permanent Magnet Synchronous Motor (PMSM)
Efficient power output with low heat generation, ensuring stability and durability even in 24/7 operations.
🔹 Full Size Range: 2.6m – 7.3m
Whether it’s a compact workshop or a massive warehouse, we provide a perfect-fit fan size for maximum efficiency. Contact us to customize sizes.
🔹 Energy Saving: Up to 70% Lower Consumption
With power as low as 1.5kW, our HVLS fans replace dozens of small fans, reducing operational costs significantly. Each fan can cover up to 1,000㎡ with uniform airflow, creating a natural ventilation effect without costly HVAC systems.
🔹 Ultra-quiet Operation & Safety Guarantee
Noise levels are kept to a minimum with advanced aerodynamic blade design, while multiple safety systems (anti-fall, anti-shake, overload protection) ensure reliable use in all conditions.
Working Principle
The electric motor drives the blades into rotation, resulting in a powerful airflow.
Its operational principle is based on the principles of centrifugal force and gas dynamics. Enclosed within the fan is an electric motor that transmits power to the blades through a transmission mechanism.
As the motor initiates operation, it sets the blades in motion, causing changes in the surrounding air and thus generating wind.
The AirTS-F series large energy-saving fans adopt wing shaped blades, which can minimize air resistance and efficiently convert electrical energy into kinetic energy of the air.
The airflow covers a range beyond the diameter of fan, pushing the airflow vertically towards the ground, forming a 1-3 meter high airflow layer on the ground, thus forming a super large coverage area not only limited to fan size.
7.3 meter HVLS fan Features
Lifetime increased more than 20%
Protection grade IP65
180°C temperature resistant permanent magnet
Primary energy efficiency
Weight reduced 20%
High quality imported brand bearing
7.3 meter HVLS fan Functions & Features
Stereoscopic natural Wind
PMSM motor with Inner rotor
Knob controller, digital display
Optional mobile APP remote control
Optional wireless control system
Support full AirTS products linkage control
Large converage area
Save more than 30% energy,worked with AirTS air conditioner
Technical Comparison
PMSM VS Gear Shifting Motor
PMSM Motor Advantages:
A. More energy saving
B. Simple structure
C. Smaller size and lighter weight
D. Low noise
E. Frequency range: 0-50Hz
F. Direct drive motor without maintance
Gear Shifting Motor Weakness:
A. More power consumption
B. Complex structure
C. Bigger size and heavier weight, loud noise
D. Frequency range: 25-50Hz
E. Gear shifting motor, the gear should be replaced
AirTS-F Inner VS Outer Rotor
Inner Rotor Structure Advantages:
A. Better heat dissipation: stator is outside (heat source).
B. More safety: the rotating parts are only the motor shaft and fan blades.
C. Longer lifetime: the hanger rod and motor can be integrated as a whole, and the rotating bearings only need to bear the weight of the wind blades, slightly wear.
D. Stable operation: the motor body and fixed steel wire rope are fixed on the motor mounting plate, and the motor does not rotate.
Outer Rotor Structure Weakness:
A. No better heat dissipation: stator is inside (heat source).
B. Less safety: the rotating parts include the motor body and fan blades.
C. Shorter lifetime: single hanger rod, small stress area, and heavy bearing capacity.
D. Easy to shake: the hanger rod bears all the weight of the fan and the torque generated during operation
Standard Control
More Safety and Reliablity
Electrical protection:
lt has protection functions, such as overvoltage, under voltage, loss of voltage regulation, overload, collision, overheating, lightning strike, abnormality, and alarm linkage and so on.
Running indicator light (RUN):
When the light is off, the inverter is in shutdown state; when the light is on, the inverter is in running state.
Keyboard operation, terminal operation and remote operation
(communication control) indicator light (LOC):
.LOC light off: panel start, stop control.
.LOC light on: terminal start, stop control.
.LOC light blink: communication start, stop control.
Tuning, Torque Control, Fault Indicator Light (TUNE):
When the light is on, it means it is in torque control mode. If it flashes slowly, it is in tuning state. If it flashes quickly, it is in fault state.
Optional IoT Control and Wireless Control System
IoT Control by Mobile APP for Android:
1. Remotely monitor the operating status of HVLS Fans
2. Data collection, analysis in time
3. Error alarm when fault happen
4. Support group control about 200 units
Optional Wireless Control System
1. Wireless control operation
2. The host computer can monitor all devices within a radius of 1km
3. Centralized control of multiple devices, partial control, single machine single control
4. Support for remote control by mobile APP
5. Accurate energy-saving and consumption reduction, automatic operation
6. Data recorded, multi-dimensional analysis
7. Support full AirTS products linkage control
7.3 meter HVLS fan Specification
Model | AirTS-F73 |
| Blades (PCS) | 5 |
| Diameter (mm/ft) | 7300/24 |
| Rotation Range (RPM) | 20~53 |
| Max airflow (m³/min) | 13800 |
| Voltage (V) | 110/220/380 |
| Frequency (Hz) | 50/60 |
| Motor power (kW) | 1.2 |
| Rated current (A) | 3.5 |
| Noise (dB) | 39 |
| Coverage area (m²) | 1700 |
| Body weight (kg) | 112 |
Where Should You Use a 7.3m HVLS Fan?
The 7.3 meter HVLS fan is best suited to large, open-floor buildings with sufficient ceiling height and relatively few airflow obstructions.
For warehouse and logistics projects, the fan can help circulate air between storage and working areas. In manufacturing plants, it can improve air movement across large production floors. When combined with an HVAC system, the F73 can also help distribute conditioned air more evenly throughout the occupied zone.
For smaller buildings or areas divided by walls, equipment or storage racks, a smaller AirTS HVLS fan may provide a more efficient layout. AirTS also provides 6.1m, 5.5m, 4.9m, 4.2m, 3.2m and 2.6m models for different space requirements
Choose the AirTS F73 24ft HVLS fan when maximum coverage is required in a large open space. For medium-sized workshops or areas with structural restrictions, smaller F-series models such as the 20ft F61, 18ft F55 or 16ft F49 may provide a better fit. Fan selection should consider floor area, ceiling height, roof structure, equipment layout and required airflow coverage.
A High Volume Low Speed (HVLS) fan is a large industrial ceiling fan, typically ranging from 2 to 7.3 meters in diameter, designed to move massive volumes of air at low rotational speeds.
Unlike traditional asynchronous motors, AirTS HVLS fans use internal rotor permanent magnet synchronous motors. This design reduces heat rise, improves efficiency, extends lifespan, and ensures stable operation.
They improve air circulation, reduce humidity, enhance worker comfort, lower energy consumption, and can work alongside HVAC systems to optimize cooling and heating efficiency.
With power consumption as low as 1.5kW, AirTS fans can save up to 70% energy compared with traditional cooling solutions. This significantly reduces electricity costs for factories and warehouses.
Yes. HVLS fans complement HVAC systems by distributing conditioned air evenly, reducing temperature differences, and improving energy efficiency.
No. AirTS HVLS fans are designed with low-noise operation and multi-layer safety protection, ensuring a quiet and safe working environment.
Yes. AirTS supports custom sizes, colors, and installation solutions to fit the unique requirements of your space and industry.
AirTS offers HVLS fans in multiple diameters: 7.3m, 6.1m, 5.5m, 4.9m, 4.2m, 3.2m, and 2.6m. This wide range ensures the perfect match for workshops, warehouses, logistics centers, and agricultural spaces of different sizes.
Fan size should be selected according to floor dimensions, ceiling height, roof structure, obstacles and the required airflow coverage. Send AirTS your building dimensions and layout, and the engineering team can recommend the appropriate fan size and installation positions.
Yes. In actual case studies, AirTS HVLS fans have lowered indoor temperatures by 5–6℃ in logistics centers and livestock farms, improving comfort and productivity.
They are widely used in factories, warehouses, logistics centers, shopping malls, gyms, exhibition halls, poultry houses, and farms, where large-scale ventilation and energy savings are needed.
The AirTS F73 is designed for airflow coverage of up to 1,700 m², although actual fan layout should also consider ceiling height, building structure and equipment placement.
With proper installation and maintenance, HVLS fans can last 10–15 years or more, depending on usage and environment.
The F73 delivers maximum airflow of 13,800 m³/min with an operating speed range of 20–53 RPM.
Simply contact AirTS for a free consultation. Our engineers will assess your site and provide a custom installation design to maximize performance and efficiency.
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