--- title: "Energy-Efficient Industrial Ceiling Fans" url: https://tiercooling.com/posts/energy-efficient-industrial-ceiling-fans/ date: 2025-12-16 modified: 2026-09-28 lang: en author: "info@tiercooling.com" description: "Current location: Home Energy-Saving Industrial HVLS Fans High airflow, low speed, and quiet operation improve your working environment. Covering an area of up to 1,450 m² with power consumption of..." categories: - "News" image: https://tiercooling.com/wp-content/uploads/2026/09/news-839.jpg word_count: 526 --- # Energy-Efficient Industrial Ceiling Fans - [ Current location: Home ](https://rundongfang.com/) - ![rdf-hvls-fans-case-014](https://rundongfang.com/wp-content/uploads/rdf-hvls-fans-case-014-768x448.jpg) ![rdf-hvls-fans-case-015](https://rundongfang.com/wp-content/uploads/rdf-hvls-fans-case-015-768x448.jpg) ![rdf-hvls-fans-case-016](https://rundongfang.com/wp-content/uploads/rdf-hvls-fans-case-016-768x448.jpg) # Energy-Saving Industrial HVLS Fans High airflow, low speed, and quiet operation improve your working environment. Covering an area of up to 1,450 m² with power consumption of less than 1 kWh per hour, it instantly boosts productivity. Safe and energy-efficient, it delivers an exceptionally cool and comfortable experience—not just airflow, but cash flow. VFD Start: Equipped with a top-tier domestic variable frequency drive, it operates with less vibration at low speeds, shock-free VFD starting, smooth operation, and near-silent noise levels. - Sealed Motor: The enclosed motor has fewer monitoring points and failure points, greatly reducing maintenance workload and costs, with a long service life. - Aviation-Grade Materials: The blades are made of the same aviation-grade airfoil material, offering superior toughness, safety, and reliability. - Natural Wind Simulation: Streamlined blades, combined with aerodynamic principles, powerfully stir indoor air to generate simulated natural wind. - High Efficiency & Energy Savings: Permanent magnet direct-drive motor + premium VFD, with airflow reaching 15,197 m³/min and power consumption of only 1.3 kW per hour. 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[Evaporative Air Cooler 23 Series Top Discharge](https://rundongfang.com/evaporative-air-cooler/evaporative-air-cooler-23-series-top) - [Evaporative Air Cooler 23 Series Bottom Discharge](https://rundongfang.com/evaporative-air-cooler/evaporative-air-cooler-23-series-bottom) - [Portable Evaporative Air Cooler 18Y Series](https://rundongfang.com/evaporative-air-cooler/portable-evaporative-air-cooler) - [Evaporative Air Cooler Centrifugal Series](https://rundongfang.com/evaporative-air-cooler/evaporative-air-cooler-centrifugal-series) - [Evaporative Air Cooler Axial Series](https://rundongfang.com/evaporative-air-cooler/evaporative-air-cooler-axial-series) - [Evaporative Air Cooler 26 Series](https://rundongfang.com/evaporative-air-cooler/zheng-fa-shi-leng-feng-ji-26) - [Permanent Magnet Evaporative Air Cooler](https://rundongfang.com/evaporative-air-cooler/pmssm-evaporative-air-cooler) ### Energy-Saving Low-Carbon Air Conditioners - [Energy-Saving Low-Carbon Air Conditioner 05C](https://rundongfang.com/jie-neng-di-tan-kong-tiao/energy-saving-low-carbon-air-conditioner-rdf-05c) - 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High-temperature environments affect work efficiency. When a person works in an environment of 28–32°C, their work efficiency begins to decline and they become fatigued more easily. When the temperature exceeds 32°C, a person’s attention and alertness also begin to be affected. - High-temperature working environments not only affect productivity but also harm people’s health, easily causing heat stroke due to dehydration, or even suffocation. - Mental work is more sensitive to temperature. When the temperature reaches 29°C, the efficiency of mental work begins to decrease; the higher the temperature, the shorter the sustainable working time. - High-temperature environments also affect the accident rate. The accident rate is low at around 20–24°C, but when the temperature rises above 30°C or falls below 10°C, the accident rate increases substantially. ![](https://rundongfang.com/wp-content/uploads/products-info-001.jpg) Human comfort depends not only on temperature as a single parameter; air velocity, oxygen content, humidity control, and other factors are equally important. These factors together influence how comfortable the environment feels to the human body. Air conditioners combine all of these key performance characteristics, ensuring the creation of a high-quality, comfortable indoor air environment. ## The Relationship Between Physical Work Efficiency, Temperature, and Air Velocity - If the temperature is too high, body temperature rises and the body secretes large amounts of sweat, leaving workers feeling exhausted all over; in severe cases, this can lead to serious dehydration, heat stroke, and fainting. - At the same time, the human central nervous system is suppressed, attention is distracted, the accuracy and coordination of movements decrease, and limbs become weak, increasing the probability of accidents. - Effective temperature refers to the temperature a person perceives in a windy environment. When the wet-bulb temperature remains constant, the higher the air velocity, the lower the effective temperature. Therefore, air velocity affects both human comfort and work efficiency. - Even if the working environment temperature is relatively high, maintaining a flow of fresh air at a certain velocity can still keep workers comfortable, mitigating the various adverse effects caused by high temperatures. | Model | RDF-S3600 | RDF-S4200 | RDF-S4200 | RDF-B6200 | RDF-B6200 | RDF-B6700 | RDF-B6700 | RDF-H7200 | RDF-H7200 | | -------- | --------- | --------- | --------- | --------- | --------- | --------- | --------- | --------- | --------- | | Diameter | 3600mm | 4200mm | 5200mm | 6200mm | 6200mm | 6700mm | 6700mm | 7200mm | 7200mm | | | (12ft) | (14ft) | (17ft) | (20ft) | (20ft) | (22ft) | (22ft) | (24ft) | (24ft) | | Input Voltage/Frequency | Single-phase 220V/50HZ | Single-phase 220V/50HZ | Single-phase 220V/50HZ | Single-phase 220V/50HZ | Single-phase 380V/50HZ | Single-phase 220V/50HZ | Single-phase 380V/50HZ | Single-phase 220V/50HZ | Single-phase 380V/50HZ | | Rated Current | 2.6A | 2.6A | 2.6A | 4.5A | 3.1A | 4.5A | 3.1A | 4.5A | 3.1A | | Power (kw) | 0.66kw | 0.66kw | 0.66kw | 1.3kw | 1.3kw | 1.3kw | 1.3kw | 1.3kw | 1.3kw | | Max. Rotation Speed | 90RPM | 90RPM | 90RPM | 90RPM | 90RPM | 90RPM | 90RPM | 90RPM | 90RPM | | Fan Blade | 4 pcs | 4 pcs | 4 pcs | 6 pcs | 6 pcs | 6 pcs | 6 pcs | 8 pcs | 8 pcs | | Noise | ≤65dB(A) | ≤65dB(A) | ≤65dB(A) | ≤65dB(A) | ≤65dB(A) | ≤65dB(A) | ≤65dB(A) | ≤65dB(A) | ≤65dB(A) | | Net Weight | 90kg | 95kg | 95kg | 105kg | 105kg | 115kg | 115kg | 125kg | 125kg | | Dimensions (L×W×H) | 1070×1070×980mm | 1170×1170×980mm | 1170×1170×980mm | 1280×1280×1010mm | 1280×1280×1010mm | 1330×1330×1010mm | 1330×1330×1010mm | 1380×1380×1010mm | 1380×1380×1010mm | e__text-inner”>80RPM 70RPM 60RPM 60RPM 55RPM 55RPM 58RPM 58RPM Max Airflow 4552m³/min 5306m³/min 7065m³/min 10747m³/min 10747m³/min 12560m³/min 12560m³/min 15197m³/min 15197m³/min Noise Level ﹤38d/B ﹤38d/B ﹤39d/B ﹤39d/B ﹤39d/B ﹤39d/B ﹤39d/B ﹤39d/B ﹤39d/B Weight 72KG 75KG 78KG 100KG 100KG 105KG 105KGspan> 115KG 115KG Coverage ∅20-24m ∅22-26m ∅25-30m ∅32-37m ∅32-37m ∅35-40m ∅35-40m ∅38-44m ∅38-44m ![](https://rundongfang.com/wp-content/uploads/hvls-fans-4.jpg) ### Three-Dimensional Natural Breeze The Rundongfang industrial large fan works by stirring large volumes of indoor air to create airflow, producing a level 1–3 natural breeze effect. It creates a soft, comfortable natural-breeze-like effect in high and spacious areas, significantly improving stuffy working environments, boosting productivity, reducing employee turnover, and achieving energy savings. ![](https://rundongfang.com/wp-content/uploads/hvls-fans-3.jpg) ### Fan + Machine Combination for Complementary Performance Perfectly integrates with air conditioners, evaporative air coolers, and negative-pressure exhaust fans — an innovative continuation of the ventilation and cooling system. ![](https://rundongfang.com/wp-content/uploads/hvls-fans-1.jpg) ### Ventilation and Cooling The RunDongFang industrial HVLS fan works by stirring large volumes of indoor air to create airflow—producing a gentle effect similar to a level 1–3 natural breeze. In tall, spacious buildings, it creates a soft, comfortable, natural-wind-like environment, significantly improving stuffy working conditions, boosting productivity, reducing employee turnover, and achieving energy savings. ![](https://rundongfang.com/wp-content/uploads/hvls-fans-3.jpg) ### Wide Coverage Area The large-diameter fan blades push massive amounts of air down to the floor, forming an airflow layer of a certain height that moves horizontally in all directions, promoting air circulation throughout the entire space. With its low rotation speed, low energy consumption, high airflow, and wide coverage area. [ Open Spaces ](javascript:void(0)) [ Enclosed Spaces ](javascript:void(0)) [ Multiple Fans Combined ](javascript:void(0)) [ Overcoming Obstacles ](javascript:void(0)) - ![Open Spaces](https://rundongfang.com/wp-content/uploads/hvls-fans-7.jpg) ![Enclosed Spaces](https://rundongfang.com/wp-content/uploads/hvls-fans-8.jpg) ![Multiple Fans Combined](https://rundongfang.com/wp-content/uploads/hvls-fans-5.jpg) ![Overcoming Obstacles](https://rundongfang.com/wp-content/uploads/hvls-fans-6.jpg) ![](https://rundongfang.com/wp-content/uploads/rdf-company-about-us-032.jpg) On-site installation service is available; - Free on-site survey with one-on-one customized solutions — truly zero cost, worry-free and reassuring; - The clear height of the building should be above 4 meters, and the spacing between load-bearing structural columns should be at least 20% greater than the diameter of the fan to be installed; - The roof structure should allow a load capacity of over 150 kg; the total equipment weight of the fan is approximately 125 kg (including installation accessories and dynamic load), torque 300 n/m, and noise level below 39 dB; - The effective coverage area of a single fan is a diameter of 30–40 m per unit, with adjacent fans spaced 30–40 meters apart; - The optimal installation height for the fan is when the blades are approximately 6–8 meters above the ground, and should in no case be less than 4 meters; - Ensure that there are no chandeliers or other obstacles blocking the fan installation location; - The optimal distance between the control box installation location and the fan installation location is less than 30 meters; - Locations with prolonged heat sources or oil fumes are not suitable for installation. ![](https://rundongfang.com/wp-content/uploads/Installation-003.jpg)I-beam hoisting ![](https://rundongfang.com/wp-content/uploads/Installation-002.jpg)Steel frame hoisting ![](https://rundongfang.com/wp-content/uploads/Installation-004.jpg)Crossbeam hoisting ![](https://rundongfang.com/wp-content/uploads/Installation-001.jpg)Circular pipe hoisting - **Commercial public places:** large shopping malls, supermarkets, specialty wholesale markets, convention and exhibition centers, exhibition halls, car 4S dealerships; - **Manufacturing:** industrial plants, production workshops, logistics warehouses, e-commerce distribution warehouses, express parcel sorting centers; - **Leisure & Tourism:** Large amusement parks, public parks, tourist attractions, specialty towns, dining, entertainment; - **Sports & Fitness:** Cultural centers, gyms, indoor training facilities. ![](https://rundongfang.com/wp-content/uploads/rdf-company-about-us-029.jpg) ![](https://rundongfang.com/wp-content/uploads/rdf-hvls-fans-case-016-1.jpg) - Improves air circulation in the space; - Comfort comes from the movement of air; - Reduces perceived temperature by 3-5 degrees; - Coverage range of 40-50 meters; - Creates a gentle, three-dimensional natural breeze of level 1-3, quiet and healthier. ![](https://rundongfang.com/wp-content/uploads/hvls-fans-13.jpg) ![](https://rundongfang.com/wp-content/uploads/hvls-fans-12.jpg) - [ Location: Home ](https://rundongfang.com/) - ![rdf-hvls-fans-case-014](https://rundongfang.com/wp-content/uploads/rdf-hvls-fans-case-014-768x448.jpg) ![rdf-hvls-fans-case-015](https://rundongfang.com/wp-content/uploads/rdf-hvls-fans-case-015-768x448.jpg) ![rdf-hvls-fans-case-016](https://rundongfang.com/wp-content/uploads/rdf-hvls-fans-case-016-768x448.jpg) # Energy-Saving Industrial HVLS Fans High air volume, low speed, and quiet operation to improve your working environment. Covering an area of up to 1,450 ㎡, it uses less than 1 kWh of electricity per hour, instantly boosting production efficiency. Safe and energy-saving, it delivers an extremely cool and comfortable experience—not just airflow, but cash flow. Variable frequency start: Matched with top domestic variable frequency drives, low-speed operation produces less vibration, shock-free variable frequency startup, smooth running, and virtually no noise. - Sealed motor: The enclosed motor has fewer monitoring points and failure points, greatly reducing maintenance requirements and costs, with a long service life. - Aviation-grade materials: The blades are made of the same aviation-grade airfoil material, offering greater toughness, safety, and reliability. - Natural wind simulation: Streamlined blades, combined with aerodynamic principles, powerfully stir the indoor air to generate simulated natural wind. - High efficiency and energy saving: Permanent magnet direct-drive motor + top-grade variable frequency drive, with an air volume of 15,197 m³/min and power consumption of 1.3 kW per hour. 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[Industrial HVLS Fans for Amusement Venues](https://rundongfang.com/industrial-ceiling-fans/hvls-fans-for-playground) - [Industrial HVLS Fans for Livestock Farming](https://rundongfang.com/industrial-ceiling-fans/hvls-fans-for-livestock) - [Industrial Fans for Sports and Fitness Facilities](https://rundongfang.com/industrial-ceiling-fans/hvls-fans-for-gym) ### Evaporative Air Coolers - [Evaporative Air Cooler 18 Series – Top Discharge](https://rundongfang.com/evaporative-air-cooler/evaporative-air-cooler-18-series-top) - [Evaporative Air Cooler 18 Series – Side Discharge](https://rundongfang.com/evaporative-air-cooler/evaporative-air-cooler-18-series-side) - [Evaporative Air Cooler 18 Series – Bottom Discharge](https://rundongfang.com/evaporative-air-cooler/evaporative-air-cooler-18-series-bottom) - [Evaporative Air Cooler 23 Series – Top Discharge](https://rundongfang.com/evaporative-air-cooler/evaporative-air-cooler-23-series-top) - [Evaporative Air Cooler 23 Series – Bottom Discharge](https://rundongfang.com/evaporative-air-cooler/evaporative-air-cooler-23-series-bottom) - [Portable Evaporative Air Cooler 18Y Series](https://rundongfang.com/evaporative-air-cooler/portable-evaporative-air-cooler) - [Evaporative Air Cooler Centrifugal Series](https://rundongfang.com/evaporative-air-cooler/evaporative-air-cooler-centrifugal-series) - [Evaporative Air Cooler Axial Fan Series](https://rundongfang.com/evaporative-air-cooler/evaporative-air-cooler-axial-series) - [Evaporative Air Cooler 26 Series](https://rundongfang.com/evaporative-air-cooler/zheng-fa-shi-leng-feng-ji-26) - [Permanent Magnet Evaporative Air Cooler](https://rundongfang.com/evaporative-air-cooler/pmssm-evaporative-air-cooler) - [Evaporative Air Cooler 18 Series Top Discharge](https://rundongfang.com/evaporative-air-cooler/evaporative-air-cooler-18-series-top) - [Evaporative Air Cooler 18 Series Side Discharge](https://rundongfang.com/evaporative-air-cooler/evaporative-air-cooler-18-series-side) - [Evaporative Air Cooler 18 Series Bottom Discharge](https://rundongfang.com/evaporative-air-cooler/evaporative-air-cooler-18-series-bottom) - [Evaporative Air Cooler 23 Series Top Discharge](https://rundongfang.com/evaporative-air-cooler/evaporative-air-cooler-23-series-top) - [Evaporative Air Cooler 23 Series Bottom Discharge](https://rundongfang.com/evaporative-air-cooler/evaporative-air-cooler-23-series-bottom) - [Portable Evaporative Air Cooler 18Y Series](https://rundongfang.com/evaporative-air-cooler/portable-evaporative-air-cooler) - [Evaporative Air Cooler Centrifugal Series](https://rundongfang.com/evaporative-air-cooler/evaporative-air-cooler-centrifugal-series) - [Evaporative Air Cooler Axial Fan Series](https://rundongfang.com/evaporative-air-cooler/evaporative-air-cooler-axial-series) - [Evaporative Air Cooler 26 Series](https://rundongfang.com/evaporative-air-cooler/zheng-fa-shi-leng-feng-ji-26) - [Permanent Magnet Evaporative Air Cooler](https://rundongfang.com/evaporative-air-cooler/pmssm-evaporative-air-cooler) ### Energy-Saving Low-Carbon Air Conditioners - [Energy-Saving Low-Carbon Air Conditioner 05C](https://rundongfang.com/jie-neng-di-tan-kong-tiao/energy-saving-low-carbon-air-conditioner-rdf-05c) - [Energy-Saving Low-Carbon Air Conditioner 08C](https://rundongfang.com/jie-neng-di-tan-kong-tiao/energy-saving-low-carbon-air-conditioner-rdf-08c) - [Energy-Saving Low-Carbon Air Conditioner 08F/C](https://rundongfang.com/jie-neng-di-tan-kong-tiao/energy-saving-low-carbon-air-conditioner-rdf-08fc) - [Energy-Saving Low-Carbon Air Conditioner 08F/S](https://rundongfang.com/jie-neng-di-tan-kong-tiao/energy-saving-low-carbon-air-conditioner-rdf-08fs) - [Energy-Saving Low-Carbon Air Conditioner 08S](https://rundongfang.com/jie-neng-di-tan-kong-tiao/energy-saving-low-carbon-air-conditioner-rdf-08s) - [Energy-Saving Low-Carbon Air Conditioner 10C](https://rundongfang.com/jie-neng-di-tan-kong-tiao/energy-saving-low-carbon-air-conditioner-rdf-10c) - [Energy-Saving Low-Carbon Air Conditioner 05C](https://rundongfang.com/jie-neng-di-tan-kong-tiao/energy-saving-low-carbon-air-conditioner-rdf-05c) - [Energy-Saving Low-Carbon Air Conditioner 08C](https://rundongfang.com/jie-neng-di-tan-kong-tiao/energy-saving-low-carbon-air-conditioner-rdf-08c) - [Energy-Saving Low-Carbon Air Conditioner 08F/C](https://rundongfang.com/jie-neng-di-tan-kong-tiao/energy-saving-low-carbon-air-conditioner-rdf-08fc) - [Energy-Saving Low-Carbon Air Conditioner 08F/S](https://rundongfang.com/jie-neng-di-tan-kong-tiao/energy-saving-low-carbon-air-conditioner-rdf-08fs) - [Energy-Saving Low-Carbon Air Conditioner 08S](https://rundongfang.com/jie-neng-di-tan-kong-tiao/energy-saving-low-carbon-air-conditioner-rdf-08s) - [Energy-Saving Low-Carbon Air Conditioner 10C](https://rundongfang.com/jie-neng-di-tan-kong-tiao/energy-saving-low-carbon-air-conditioner-rdf-10c) ## Comfort Temperature Indicators Under Different Working Conditions | Working Posture | Nature of Work | Type of Work | Suitable Temperature (℃) | | --------------- | -------------- | ------------ | -------------------------- | | Seated | Mental work | Office | 20–25 | | Seated | Light physical labor | Assembly line work | 20–24 | | Standing | Light physical labor | Office | 19–23 | | Standing | Heavy physical labor | Carrying, loading and unloading | 17–22 | ## The Impact of High-Temperature Environments on Work Efficiency and Accident Rates - High-temperature environments reduce work efficiency. When people work in an environment of 28–32°C, their work efficiency begins to decline and they become more prone to fatigue. When the temperature exceeds 32°C, a person’s attention and alertness also begin to be affected. - High-temperature working environments affect not only productivity but also people’s physical health, easily causing dehydration, heatstroke, and even suffocation among workers. - Mental work is more sensitive to temperature. When the temperature reaches 29°C, the efficiency of mental work begins to decrease; the higher the temperature, the shorter the duration of sustained work. - High temperatures also affect the incidence of accidents. The accident rate is lowest at around 20–24°C, and it increases significantly when the temperature rises above 30°C or falls below 10°C. ![](https://rundongfang.com/wp-content/uploads/products-info-001.jpg) Human comfort does not depend on temperature alone; air velocity, oxygen content, and humidity control are equally important. These factors together determine how comfortable people feel in an environment. Air conditioners are designed with all of these key performance features, ensuring the creation of a high-quality, comfortable indoor air environment. ## The Relationship Between Physical Work Efficiency and Temperature and Air Velocity - When the temperature is too high, body temperature rises and the body secretes large amounts of sweat, leaving workers feeling fatigued all over; in severe cases, this can lead to serious dehydration, heatstroke, and fainting. - At the same time, the central nervous system is suppressed, attention is distracted, and the accuracy and coordination of movements decline, along with weakness in the limbs, increasing the probability of accidents. - Effective temperature refers to the temperature a person perceives in an environment with air movement. When the wet-bulb temperature remains constant, the greater the air velocity, the lower the effective temperature. Therefore, air velocity affects both human comfort and work efficiency. - Even in a relatively hot working environment, maintaining a flow of fresh air at a certain velocity can keep workers feeling comfortable and mitigate the various adverse effects caused by high temperatures. | Model | RDF-S3600 | RDF-S4200 | RDF-S4200 | RDF-B6200 | RDF-B6200 | RDF-B6700 | RDF-B6700 | RDF-H7200 | RDF-H7200 | | ----- | --------- | --------- | --------- | --------- | --------- | --------- | --------- | --------- | --------- | | Diameter | 3600mm | 4200mm | 5200mm | 6200mm | 6200mm | 6700mm | 6700mm | 7200mm | 7200mm | | | (12ft) | (14ft) | (17ft) | (20ft) | (20ft) | (22ft) | (22ft) | (24ft) | (24ft) | | Input Voltage/Frequency | Single-phase 220V/50HZ | Single-phase 220V/50HZ | Single-phase 220V/50HZ | Single-phase 220V/50HZ | Single-phase 380V/50HZ | Single-phase 220V/50HZ | Single-phase 380V/50HZ | Single-phase 220V/50HZ | Single-phase 380V/50HZ | | Rated Current | 2.6A | 2.6A | 2.6A | 4.5A | 3.1A | 4.5A | 3.1A | 4.5A | 3.1A | | Power (kw) | 0.66kw | 0.66kw | 0.66kw | 1.3kw | 1.3kw | 1.3kw | 1.3kw | 1.3kw | 1.3kw | | Max Rotation Speed | 90RPM | 0.66kw | 70RPM | 60RPM | 60RPM | 55RPM | 55RPM | 58RPM | 58RPM | | Maximum Airflow | 4552m³/min | 5306m³/min | 7065m³/min | 10747m³/min | 10747m³/min | 12560m³/min | 12560m³/min | 15197m³/min | 15197m³/min | | Noise Level | ﹤38d/B | ﹤38d/B | ﹤39d/B | ﹤39d/B | ﹤39d/B | ﹤39d/B | ﹤39d/B | ﹤39d/B | ﹤39d/B | | Weight | 72KG | 75KG | 78KG | 100KG | 100KG | 105KG | 105KGspan> | 115KG | 115KG | | Coverage Range | ∅20-24m | ∅22-26m | ∅25-30m | ∅32-37m | ∅32-37m | ∅35-40m | ∅35-40m | ∅38-44m | ∅38-44m | ![](https://rundongfang.com/wp-content/uploads/hvls-fans-4.jpg) ### Three-Dimensional Natural Breeze Rundongfang industrial large fans work by agitating large volumes of indoor air to generate airflow, producing a natural breeze effect equivalent to Force 1~3 winds. They create a soft, comfortable natural-breeze-like effect in tall and spacious areas, significantly improving stuffy working environments, boosting productivity, reducing employee turnover, and achieving energy savings. ![](https://rundongfang.com/wp-content/uploads/hvls-fans-3.jpg) ### Fan + Equipment Combination Perfectly combines with air conditioners, evaporative air coolers, and negative-pressure exhaust fans — an innovative evolution of ventilation and cooling systems. ![](https://rundongfang.com/wp-content/uploads/hvls-fans-1.jpg) ### Ventilation and Cooling The Rundongfang industrial large fan works by vigorously stirring the indoor air to create airflow, producing a level 1–3 natural breeze effect. In high and spacious areas, it creates a soft, comfortable natural-wind-like effect, significantly improving hot and stuffy working environments, increasing productivity, reducing employee turnover, and achieving energy savings. ![](https://rundongfang.com/wp-content/uploads/hvls-fans-3.jpg) ### Wide Coverage Area The large-diameter fan blades push massive volumes of air down to the ground, forming an airflow layer at a certain height that moves horizontally in all directions, driving air circulation throughout the entire space. With low rotational speed, low energy consumption, high airflow volume, and wide coverage area. 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The total equipment weight of the fan is approximately 125 kg (including installation accessories and dynamic load), torque 300 n/m, noise below 39 dB; - The effective coverage area of a single fan is a diameter of 30–40 m per unit, with adjacent fans spaced 30–40 meters apart; - The optimal installation height for the fan is about 6–8 meters from the ground to the blades, and in no case less than 4 meters; - Ensure that the fan installation location is free from chandeliers or other obstructing obstacles; - The distance between the control box installation location and the fan installation location should ideally be less than 30 meters; - Locations with prolonged heat sources or oil fumes are not suitable for installation. ![](https://rundongfang.com/wp-content/uploads/Installation-003.jpg)I-beam overhead installation ![](https://rundongfang.com/wp-content/uploads/Installation-002.jpg)Steel frame hoisting ![](https://rundongfang.com/wp-content/uploads/Installation-004.jpg)Crossbeam hoisting ![](https://rundongfang.com/wp-content/uploads/Installation-001.jpg)Circular pipe hoisting - **Commercial public venues:** large shopping malls, supermarkets, specialized wholesale markets, convention and exhibition centers, showrooms, car 4S dealerships; - **Manufacturing:** industrial plants, production workshops, logistics warehouses, e-commerce distribution warehouses, express parcel sorting centers; - **Leisure & Tourism:** Large amusement parks, parks, tourist attractions, specialty towns, dining, entertainment; - **Sports:** Cultural centers, gyms, indoor training venues. ![](https://rundongfang.com/wp-content/uploads/rdf-company-about-us-029.jpg) ![](https://rundongfang.com/wp-content/uploads/rdf-hvls-fans-case-016-1.jpg) - Improves air circulation in the space; - Comfort comes from the flow of air; - Perceived cooling of 3–5 degrees; - Coverage range of 40–50 meters; - Creates a gentle, three-dimensional natural breeze of level 1–3, quiet and healthier. ![](https://rundongfang.com/wp-content/uploads/hvls-fans-13.jpg) ![](https://rundongfang.com/wp-content/uploads/hvls-fans-12.jpg)