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Best Industrial Ceiling Fans
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HVLS fans move slowly and distribute large amounts of air at low rotational speed– hence the name “high volume, low speed.”

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Best Industrial Ceiling Fans For Sale​

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Best Industrial Ceiling Fans for Sale

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HVLS Industrial Fan

A high-volume low-speed (HVLS) fan is a type of mechanical fan greater than 7 feet (2.1 m) in diameter. HVLS fans are generally ceiling fans although some are pole mounted. HVLS fans move slowly and distribute large amounts of air at low rotational speed– hence the name “high volume, low speed.” These fans have very low revolutions per minute as compared to other fans. But due to their large size, they can provide a high volume of air at low speed.

The size of these fans can vary from 2.8m (8ft) to 7.3m (24ft). This is their diameter from one tail to another. Moreover, they have a different aerodynamic design as well. The blades are not like normal fans, they have a special aerodynamic design. The number of blades is also more than normal fans. RTFANS all huge HVLS fans have six blades and a patented airfoil design for better strength and flexibility.

What is HVLS Fan?

Typical applications for HVLS fans are for industrial and commercial use. In industrial applications, AC cost is too high and impractical for big spaces, but ventilation and cooling demand is still high. Fans installed in spaces like factories, warehouses, barn and distribution centers can prevent heat stress, increase worker comfort and the productivity of both workers and livestock. HVLS fans are also used in commercial spaces, where air conditioning is more common, but increased air movement from ceiling fans can help to reduce cost greatly- a 30% running cost can be expected. Typical commercial applications include shopping malls, churches, office buildings, airport terminal buildings, fitness centers and schools.

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HVLS Fan Specification

Applicable

Applicable for Large Space & Tall Industrial Area
12ft, 16ft,18ft, 20ft, 24ft Diameter HVLS Fans

Model Fan Dia.
(M/FT)		 Motor Power
(KW/HP)		 RPM Air Flow
(m³/min)		 Current
(A/380V)		 Applicable Area
(SQM.)		 Weight
(KG)		 Noise
(DB)
RTF-CF-7E 7.3m/24ft 1.5/2.0 0~53 13500 2.95 1600 125 43
RTF-CF-6E 6.1m/20ft 1.5/2.0 0~60 11500 2.75 1380 113 43
RTF-CF-5E 5.5m/18ft 1.5/2.0 0~67 9500 2.72 1050 108 43
RTF-CF-4E 4.9m/16ft 1.5/2.0 0~75 8000 2.85 850 102 43
RTF-CF-3E 3.7m/12ft 1.5/2.0 0~80 6000 2.72 630 90 43
Model RTF-CF-7E RTF-CF-6E
Fan Dia.(M/FT) 7.3m/24ft 6.1m/20ft
Motor Power(KW/HP) 1.5/2.0 1.5/2.0
RPM 0~53 0~60
Air Flow 4.9m/16ft 1.5/2.0
Current 2.95 2.75
Applicable Area 1600 1380
Weight(KG) 125 113
Noise(DB) 43 43

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HVLS Fans Wind Chill Effect

The gentle breeze brings by RTFANS HVLS fans to our body can accelerate sweat evaporation and make people feeling cool, usually, this sensible temperature created by wind chill effect can be 5-8℃, in addition, the gentle wind from all sides will make people more comfortable compared with a traditional powerful fan.

How to make people feel cooling down 5-8℃ by use high-volume low-speed fans?

The running of a big diameter industrial fan blade accelerates the airflow and increases the evaporative efficiency of the sweat on a human being’s body, and this evaporation process takes away heat in the body, that’s called wind chill effect.

As for the specific influence created by different wind speeds, please see the above graph, which can show you different temperatures with different wind speeds to make the difference that people feeling.

Features

  1. German “Nord” customized coaxial bevel reduction gears with a diameter of axle 40mm.
  2. German “Simrit” double oil seal design, durable and reliable.
  3. “Shell” top class “Omala” S4 lubrication oil, zero maintenance for over 20000 hours.
  4. low maintenance and long service life.
  5. High efficiency for low operating costs.
  6. Robust grey cast iron housing.
  7. High axial and radial load capacities enable reliable operation.
  8. Quiet running.

  1. High strength aircraft aluminum alloy: AA6063T6511 with PVFD surface coating.
  2. The design developed by Profili 2.0 – professional software for wing airfoils managing, drawing and analysis.
  3. Patented airfoil design, specially designed reinforcing rib support system to increase both strength and flexibility.
  4. Inner equipped steel cable, the stiffened reinforcement combination, the module to prevent fan blade cracking(Optional).
  5. 6 blades, Customized fan blade colour.

  1. Denmark “DANFOSS” frequency converter & German “Schneider” electrical sets.
  2. Penetration of dust is minimized thanks to coated PCBs, the drive ensures reliable and cost-effective operation also in demanding environments.
  3. Radio disturbance from motor cables is limited due to built-in RFI filters.
  4. Lifetime of the drive is extended and reliability improved as a result of the effective heat sink that removes heat from the electronics.
  5. Energy consumption can be reduced as kinetic energy in the application can be transformed into braking power to slow down the motor.

  1. German “Nord” customized coaxial bevel reduction gears with a diameter of axle 40mm.
  2. Innovative double chassis design, more durable and steady.
  3. Imported NASA-inspired super alloy (AA7075).
  4. Precision high-pressure forging japan technology (Σ B 600Mpa).
  5. T6 heat processing.

Unique Cardan joint design, working as a human beings’ joint, to decrease the vibration and keep fan best balanced during operation.

HVLS Fan Space Ventilation

Usually the ventilation is restricted in a tall and large space, and the exhaust fan can barely work for the floor or corner of building where people and equipment located, while HVLS industrial fan can solve these problems completely by sending a well-aligned wind in full space, coordinated with the evaporative air cooler, to improve the air quality and achieve a healthy and comfortable working environment.

 
 

HVLS Fans Dehumidification

RTFANS HVLS industrial ceiling fan facilitates the flow of air and dispenses the damp, to improve the comfort level for people in the house.

HVLS fan can accelerate the air mixing of whole space which helps to distribute and absorb the odors, smoke, and humidity very well, thus to improve the quality of air and provide a fresh, arid and safe environment.

RH(%)
Inside Air Normal 30% 40% 50% 60% 70% 80%
Inside Air With HVLS Fan 27% 35% 43% 50% 58% 65%
Dehumidification 3% 5% 7% 10% 12% 15%
Reduction Rate 10.00% 12.50% 14.00% 16.67% 17.14% 18.75%

Application Solutions

HVLS Fans For Warehouse

From the indoor stadium to open space training center, RTFANS offer much-needed air movement that keeps athletes and spectators comfortable.

HVLS Fans

By maintaining constant air movement from ceiling to floor and wall to wall, RTFANS are an energy-efficient approach to ensuring a comfortable environment with really low energy cost.

HVLS Fans Industrial

Keep arenas, barns and sports center comfortable with RTFANS, whether alone or combined with an AC system, RTFANS are an energy-efficient way to keep both human being and beast happy.

Compared With Powerful Fan

  • Cover 1800m² per unit with 13200m³/min, full space covered with its 7.3m diameter fan blade.
  • Installation by mounted to the ceiling, simple and elegant.
  • Tridimensional and natural breeze from all direction, with most comfortable wind speed 1-3m/s, with less noise.
  • Almost zero maintenance
    after proper installation.
  • 8-10 years.
  • Wind can only reach the area in front of the fan, can not work well if people frequently move.
  • Mounted on the wall or standing on the floor, need space to put or store.
  • Long-time exposure to high-speed wind will cause dizziness,
    noisy during operation.
  • High failure rate, and need maintenance and cleaning frequently.
  • 3-5 years.

Compared With Powerful Fan​

HVLS Fan Powerful Fan
Fan Diameter (m) 7.3 0.75
Power (kW) 1.5 0.36
Air Flow (m³/min) 13,500
(810,000)		 300
(18,000)
Effective Area (m²) 1,500 30
Factory Area 9000m² 9000m²
Total Units installed 6 300
Total Kw Installed 9 108
Consumption/Year
@10hrs/day @26 d/m		 28,080 336,960

Compared With Powerful Fan

  • During Spring or Autumn when temperature keep in a range from 20-34 ℃, for those space with AC system, it’s awkward to decide if need to run the AC system, while with HVLS fan, you can forget the electricity bill caused by AC system!

  • It cost a huge when AC system fully running, while the HVLS fan can spread the cold air into every corner of the space during AC running, make it more well proportioned.

  • In addition, testing shows that we can save power consumption 20% by setting AC temperature 1℃ higher, HVLS fan can shorten the running time of AC or decrease the running quantity of AC, but achieve a same cooling effect!

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