Why Choose Us
Large industrial ceiling fans
Our brand “RTFANS” is the most popular in large industrial ceiling fans, huge commercial ceiling fans, and evaporative air cooling field. Kool Air aims to be your perfect solution provider on-air processing with the full range of evaporative cooling and ventilation products including evaporative air coolers, evaporative cooling pads, HVLS fans for industrial, commercial, household as well as agricultural use.
With 18 years’ experience in the market, we have become an industry leader in evaporative cooling technology and also a solution provider in large space ventilation and cooling.
As a member of energy-saving and environmentally friendly business, we are proud to devote ourselves to big industrial ceiling fans, commercial ceiling fans for sale, with excellent space ventilation and cooling technology and bring our customers better air with less cost and energy.
The best HVLS fans for sale
Hot-sale Industrial/Commerical ceiling fans with remote control
What can HVLS fans do?
HVLS fans features
- Denmark “DANFOSS” frequency converter & German “Schneider” electrical sets.
- Step-less speed regulation with malfunction protection.
- IP55 protection level and NEMA1 standard controlling box.
- Operation temperature range -10 ~ 55 ℃.
- German “Nord” customized coaxial bevel reduction gears with a diameter of axle 40mm.
- German “Simrit” double oil seal design, durable and reliable.
- “Shell” top class “Omala” S4 lubrication oil, zero maintenance for over 20000 hours.
- PMSM（Permanent Magnet Synchronous Motor） technology with high efficiency and long service time.
- Compact and light design, no space limitation and easy to install.
- Direct drive, without gear, no need lubrication oil replacement, essentially silent and maintenance-free.
- Innovative double chassis design, more durable and steady.
- Imported NASA-inspired super alloy (AA7075).
- Precision high-pressure forging japan technology (Σ B 600Mpa).
- T6 heat processing.
- High strength aircraft aluminum alloy:AA6063T6511 with PVFD surface coating.
- Patented airfoil design, special designed reinforcing rib support system to increase both strength and flexibility.
- Inner equipped steel cable to prevent fan blade cracking(Optional).
- Customized fan blade color.
How to install the industrial ceiling fan?
Large industrial fan base fixed
Clip on any steel H-beam, without changing any steel structure.
Large industrial fan cardan joint
Cardan joint allows the fan to make free oscillation and to find it's level position no matter what the slope.
Large industrial fan extension
Connect the ends of the extension rod with the Cardan joint and drive device by bolts.
Large industrial fan mainframe
The drive device has been assembled to be one unit before delivery, fix it to the extension rod by using bolts.
Large industrial fan blade
Please ensure the angle between each steel wire and the drive device is 45°,make sure the drive device of fan at a vertical level position.
Large industrial fan shell
Take the bottom cover close to the blade wheel and tighten it by bolts.
It’s a combination of HVLS fan and Evaporative air cooler. The concept is to use both the advantages of the two products. With fresh cooled air from air cooler and high volume low-speed air movement from HVLS fan, you will get a perfect environment with the lowest cost; fresh cooled air can be pushed to every corner.
Compare with using only one product, it cost too much for an air cooler to use the ducting system but only gets spot cooling; HVLS fan can make air circulation, but it’s not enough because in the hot season, people need cooled air.
Fan and more refreshing combo realize a perfect solution for large space cooling and ventilation, no matter indoor or outdoor.
Fan & Cooler Combo Advantage
Why Fan & Cooler Combo Solution works perfectly for large space ventilation and cooling?
- The unique advantage of an air cooler is that it can drop air temperature with only 20% power consumption compared to traditional AC, but need air ducting hang on the ceiling which impacts space utilization and image.
- The unique advantage of HVLS is the high volume low-speed air movement ability, each fan enable to cover more than 1000 square meters, but can’t get temperature drop;
- Fan & Cooler Combo take both advantages and can provide optimized ventilation and cooling environment for users.
Why Choose Fan & Cooler Combo?
- Fresh and cooled air is distributed into every corner of the building, bring soft breeze in all direction.
- High volume, low noise, better environment.
- No ducting in building, cost-saving, and space utilized, neat and easy to organize.
- The system can be used together or independently: In the hot season, fan & cooler combo system work the best; in the less hot season, can use HVLS fan only for ventilation.