🏭 Factory Direct · Guangdong, China | CRAA Certified #001 · ISO 9001 · CE Marked | Get a Free Cooling Calculation →

Cool your factory. Cut energy bills
by 80%.

China's first PMSM HVLS fan pioneer and evaporative cooler innovator. 20+ years of R&D, 30+ patents, CRAA certification #001. Factory direct to 80+ countries — with free cooling calculation.

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Verified Credentials
✓
CRAA Certified #001
✓
ISO 9001:2015
✓
CE Marked
✓
30+ Patents
✓
CCTV-9 Partner
RDF HVLS Fan
Coverage / Unit
1,500
m² per fan
Energy Cost
1.3
kWh / 1,000m² / hr
20+
Years Factory
30+
Patents
80+
Countries
80%
Energy Saved
PMSM Direct Drive · Zero Gearbox China CRAA Certification #001 ISO 9001 · CE Marked 30+ National Patents 1/8 Energy vs Central AC Free Cooling Design Service OEM & ODM Available Factory Direct to 80+ Countries PMSM Direct Drive · Zero Gearbox China CRAA Certification #001 ISO 9001 · CE Marked 30+ National Patents 1/8 Energy vs Central AC Free Cooling Design Service OEM & ODM Available Factory Direct to 80+ Countries
Product Range

Three Categories, One Manufacturer

Eco-friendly AC Series
Eco-friendly AC Series
Rundongfang Environmental Protection Air Conditioner - RDF18C Rundongfang Environmental Protection Air Conditioner - RDF18B Rundongfang Environmental Protection Air Conditioner - RDF18A Rundongfang Environmental Protection Air Conditioner - RDF25B Rundongfang Environmental Protection Air Conditioner - RDF23C
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→
Energy-saving Low-carbon AC
Energy-saving Low-carbon AC
Low carbon and energy-saving air conditioner RDF-12F/S (direct blowing type) Low carbon and energy-saving air conditioner RDF-12C (direct blowing type) Low carbon and energy-saving air conditioner RDF-24S (direct blowing type) Low carbon and energy-saving air conditioner RDF-20S (vertical direct blowing) Low carbon and energy-saving air conditioner RDF-12F/C (direct blowing type)
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Industrial Large Fan Series
Industrial Large Fan Series
Rundongfang 7.2-meter industrial fan Rundongfang 6.7-meter industrial fan Rundongfang 6.2-meter industrial fan Rundongfang 5.2-meter industrial fan Rundongfang 4.2-meter industrial fan
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→
🌀Rundongfang 7.2-meter industrial fan 🌀Rundongfang 6.7-meter industrial fan 🌀Rundongfang 6.2-meter industrial fan 🌀Rundongfang 5.2-meter industrial fan 🌀Rundongfang 4.2-meter industrial fan 🌀Rundongfang 3.6-meter industrial fan 🌀Large scale venue industrial fan exhibition hall large fan 🌀Large fan Large ceiling fan Installation of industrial large fans in warehouses 🌀Ventilation and cooling solution for large workshops, industrial large fan 🌀Large energy-saving ceiling fans used in shopping malls and supermarkets
Eco-friendly AC Series

Products, Eco-friendly AC Series

Rundongfang Environmental Protection Air Conditioner - RDF18C
🌀
Flagship
Rundongfang Environmental Protection Air Conditioner - RDF18C
RDF18C
air outlet method
upward airflow
Maximum air volume (M3/h)
eighteen thousand
Voltage/Frequency (V/Hz)
380V/50Hz | 220V/50Hz
Motor power (KW)
one point one
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Rundongfang Environmental Protection Air Conditioner - RDF18B
🌀
Flagship
Rundongfang Environmental Protection Air Conditioner - RDF18B
RDF18B
air outlet method
side air outlet
Maximum air volume (M3/h)
eighteen thousand
Voltage/Frequency (V/Hz)
380V/50Hz | 220V/50Hz
Motor power (KW)
one point one
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Rundongfang Environmental Protection Air Conditioner - RDF18A
🌀
Flagship
Rundongfang Environmental Protection Air Conditioner - RDF18A
RDF18A
air outlet method
bottom discharge
Maximum air volume (M3/h)
eighteen thousand
Voltage/Frequency (V/Hz)
380V/50Hz | 220V/50Hz
Motor power (KW)
one point one
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Rundongfang Environmental Protection Air Conditioner - RDF25B
🌀
Flagship
Rundongfang Environmental Protection Air Conditioner - RDF25B
RDF25B
air outlet method
side air outlet
Maximum air volume (M3/h)
twenty-five thousand
Voltage/Frequency (V/Hz)
380V/50Hz
Motor power (KW)
five point five
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Rundongfang Environmental Protection Air Conditioner - RDF23C
🌀
Flagship
Rundongfang Environmental Protection Air Conditioner - RDF23C
RDF23C
air outlet method
upward airflow
Maximum air volume (M3/h)
twenty-three thousand
Voltage/Frequency (V/Hz)
380V/50Hz | 220V/50Hz
Motor power (KW)
one point five
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Rundongfang Environmental Protection Air Conditioner - RDF23A
🌀
Flagship
Rundongfang Environmental Protection Air Conditioner - RDF23A
RDF23A
air outlet method
bottom discharge
Maximum air volume (M3/h)
twenty-three thousand
Voltage/Frequency (V/Hz)
380V/50Hz | 220V/50Hz
Motor power (KW)
one point five
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Rundongfang Environmental Protection Air Conditioner - RDF36C
🌀
Flagship
Rundongfang Environmental Protection Air Conditioner - RDF36C
RDF36C
air outlet method
upward airflow
Maximum air volume (M3/h)
thirty-six thousand
Voltage/Frequency (V/Hz)
380V/50Hz
Motor power (KW)
three
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Rundongfang Environmental Protection Air Conditioner - RDF30B
🌀
Flagship
Rundongfang Environmental Protection Air Conditioner - RDF30B
RDF30B
air outlet method
side air outlet
Maximum air volume (M3/h)
thirty thousand
Voltage/Frequency (V/Hz)
380V/50Hz
Motor power (KW)
two point two
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Energy-saving Low-carbon AC

Products, Energy-saving Low-carbon AC

Low carbon and energy-saving air conditioner RDF-12F/S (direct blowing type)
🌀
Flagship
Low carbon and energy-saving air conditioner RDF-12F/S (direct blowing type)
RDF-12F/S
model
RDF-12F/S 
Nominal cooling capacity
53KW
rated power
11.2KW
air outlet method
Lifting type/side air outlet
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Low carbon and energy-saving air conditioner RDF-12C (direct blowing type)
🌀
Flagship
Low carbon and energy-saving air conditioner RDF-12C (direct blowing type)
RDF-12C
model
RDF-12C 
Nominal cooling capacity
53KW
rated power
10.3KW
air outlet method
Floor standing/side air outlet
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Low carbon and energy-saving air conditioner RDF-24S (direct blowing type)
🌀
Flagship
Low carbon and energy-saving air conditioner RDF-24S (direct blowing type)
RDF-24S
model
RDF-24S
Nominal cooling capacity
30KW
rated power
8.5KW
air outlet method
Floor standing/duct fan
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Low carbon and energy-saving air conditioner RDF-20S (vertical direct blowing)
🌀
Flagship
Low carbon and energy-saving air conditioner RDF-20S (vertical direct blowing)
RDF-20S
model
RDF-20S 
Nominal cooling capacity
14.5KW
rated power
5.2KW
air outlet method
Floor standing/duct fan
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Low carbon and energy-saving air conditioner RDF-12F/C (direct blowing type)
🌀
Flagship
Low carbon and energy-saving air conditioner RDF-12F/C (direct blowing type)
RDF-12F/C
model
RDF-12F/C 
Nominal cooling capacity
53KW
rated power
10.3KW
air outlet method
Lifting type/side air outlet
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Low carbon and energy-saving air conditioner RDF-10F/S (direct blowing type)
🌀
Flagship
Low carbon and energy-saving air conditioner RDF-10F/S (direct blowing type)
RDF-10F/S
model
RDF-10F/S 
Nominal cooling capacity
35KW
rated power
8.5KW
air outlet method
吊装式/侧出风
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Low carbon and energy-saving air conditioner RDF-10F/C (direct blowing type)
🌀
Flagship
Low carbon and energy-saving air conditioner RDF-10F/C (direct blowing type)
RDF-10F/C
model
RDF-10F/C
Nominal cooling capacity
35KW
rated power
7.5KW
air outlet method
Lifting type/side air outlet
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Low carbon and energy-saving air conditioner RDF-10C (vertical direct blowing)
🌀
Flagship
Low carbon and energy-saving air conditioner RDF-10C (vertical direct blowing)
RDF-10C
model
RDF-10C
Nominal cooling capacity
35KW
rated power
6.8KW
air outlet method
Floor standing/side air outlet
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Industrial Large Fan Series

Products, Industrial Large Fan Series

Rundongfang 7.2-meter industrial fan
🌀
Flagship
Rundongfang 7.2-meter industrial fan
Rundongfang 7.2-meter industrial fan
model
fan diameter
RDF-S3600
three point six
RDF-S4200
four point two
RDF-S5200
five point two
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Rundongfang 6.7-meter industrial fan
🌀
Flagship
Rundongfang 6.7-meter industrial fan
Rundongfang 6.7-meter industrial fan
model
fan diameter
RDF-S3600
three point six
RDF-S4200
four point two
RDF-S5200
five point two
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Rundongfang 6.2-meter industrial fan
🌀
Flagship
Rundongfang 6.2-meter industrial fan
Rundongfang 6.2-meter industrial fan
model
fan diameter
RDF-S3600
three point six
RDF-S4200
four point two
RDF-S5200
five point two
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Rundongfang 5.2-meter industrial fan
🌀
Flagship
Rundongfang 5.2-meter industrial fan
Rundongfang 5.2-meter industrial fan
model
fan diameter
RDF-S3600
three point six
RDF-S4200
four point two
RDF-S5200
five point two
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Rundongfang 4.2-meter industrial fan
🌀
Flagship
Rundongfang 4.2-meter industrial fan
Rundongfang 4.2-meter industrial fan
model
fan diameter
RDF-S3600
three point six
RDF-S4200
four point two
RDF-S5200
five point two
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Rundongfang 3.6-meter industrial fan
🌀
Flagship
Rundongfang 3.6-meter industrial fan
Rundongfang 3.6-meter industrial fan
model
fan diameter
RDF-S3600
three point six
RDF-S4200
four point two
RDF-S5200
five point two
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Large scale venue industrial fan exhibition hall large fan
🌀
Flagship
Large scale venue industrial fan exhibition hall large fan
Large scale venue industrial fan exhibition hall large fan
model
fan diameter
RDF-S3600
three point six
RDF-S4200
four point two
RDF-S5200
five point two
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Large fan Large ceiling fan Installation of industrial large fans in warehouses
🌀
Flagship
Large fan Large ceiling fan Installation of industrial large fans in warehouses
Large fan Large ceiling fan Installation of industrial large fans in warehouses
model
fan diameter
RDF-S3600
three point six
RDF-S4200
four point two
RDF-S5200
five point two
🏆 Largest model — covers up to 2,000 m² per unit
✓ CRAA #001 · CE · ISO 9001 · 3C
Applications

Built for Your Industry

20+ years serving China's most demanding factories, warehouses and farms — with 10,000+ completed installations across every major industry sector.

Ventilation and cooling case of a Buddhist furniture factory in Zhangmutou
Ventilation and cooling case of a Buddhist furniture factory in Zhangmutou
The hot summer is coming, will your workshop also face the spread of high temperatures and poor air circulation? If there is, the company's professional ventilation and cooling team can 100% help you! The company was established in 2005 and mainly de...
Case study of fan complementary ventilation and cooling project in a certain express logistics center
Case study of fan complementary ventilation and cooling project in a certain express logistics center
A case study of ventilation and cooling engineering in a large express logistics company. The express logistics center mainly provides delivery and transportation services, from sorting to distribution. Due to the accumulation of goods and the transp...
Greenhouse ventilation and cooling equipment
Greenhouse ventilation and cooling equipment
The greenhouse is basically in a fully enclosed state, resulting in poor air circulation, making it very stuffy and emitting unpleasant odors. High temperatures and murky air not only make people uncomfortable but also affect the growth of plants. To...
Case study of environmental protection, air conditioning, ventilation and cooling engineering for automobile maintenance center
Case study of environmental protection, air conditioning, ventilation and cooling engineering for automobile maintenance center
The car repair center is located in Changping Town, Dongguan, and is a car repair center with high-quality service and reputation. With the continuous improvement of Baole BMW's repair technology and service, it has become a well-known enterprise in ...
Workshop exhaust engineering of a well-known beverage enterprise
Workshop exhaust engineering of a well-known beverage enterprise
Engineering background: During production in this workshop, high-temperature exhaust gas is generated, with a peak emission of 15000 cubic meters per hour. The exhaust gas temperature is high and contains odors. It has a significant impact on the ind...
Cooling project for mold production workshop
Cooling project for mold production workshop
The workshop is constructed of concrete, and the indoor space is very high. The large mold manufacturing machinery in the workshop produces high heat and odor during production. The company has thought of many cooling schemes to solve the high temper...
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Proven in the Field

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New Energy Automotive
Dongguan environmental air conditioning, Dongguan factory cooling, Dongguan water curtain cooling, find Rundongfang
Dongguan environmental air conditioning, Dongguan factory cooling, Dongguan water curtain cooling, find Rundongfang
Drawing a blueprint and forging ahead to embark on a new journey - Rundongfang's 2026 annual board meeting was successfully held
The team of "Rundongfang" collaborates to study and explore new areas of going global!
Is the temperature in the workshop high? Try these fast workshop cooling and ventilation methods!
What are the functions and benefits of using air coolers for cooling and ventilation in factory warehouses?
Why Choose RDF

Why 10,000+ Factories
Trust RDF Cooling

20 years of factory experience backed by China's #1 aerodynamics researcher, Prof. Xi Deke. We do not compromise on quality — and neither should you.

🏗️
Factory Direct, No Middlemen
All products manufactured at our own 40,000 m² Dongguan facility. Full production control means consistent quality and competitive FOB pricing.
⚡
PMSM Technology Pioneer
China's first HVLS manufacturer to adopt permanent-magnet servo direct drive. 30+ patents, CRAA #001. Zero gearbox means zero gearbox failures.
🔬
Academic R&D Partnership
Engineering team co-developed with Prof. Xi Deke, China's foremost aerodynamics expert. Every blade is CFD-optimized in our in-house simulation lab.
🌍
Export-Ready Documentation
CE, ISO, CRAA certificates ready. Sea/air freight, CIF/FOB pricing, door-to-door to 80+ countries. Full OEM/ODM capabilities with NDA.
🛡️
10+ Year Product Lifespan
Anti-aging PP housing, all-copper motor windings, UV-resistant carbon-fiber blades. 36-month warranty. CCAC China Pacific Insurance up to ¥10M.
📐
Free Cooling Design Service
Submit your floor plan. We provide a free CFD-based cooling layout, product selection, and ROI analysis within 48 hours. No obligation.
20+
Years R&D
30+
Patents
80+
Export Countries
80%
Energy Saved vs AC
Order Process

How to Work With Us

1
📝
Submit Requirements

Share floor plan, ceiling height, worker count, and temperature goals. Or request our free site consultation.

2
📊
Free Cooling Design

Engineers deliver a CFD layout, product selection, and energy ROI analysis within 48 hours — free of charge.

3
✅
Confirm & Order

Approve design, finalize specs, place order. Factory visits welcome. 30% deposit starts production.

4
🏭
Production & QC

Dynamic balancing, vibration testing, and performance certification. Test reports included with every shipment.

5
🚢
Ship & Support

Sea/air freight to your port. Installation manuals, video guides, smart control app. 36-month warranty support.

Customer Reviews

What Our Buyers Say

★★★★★

"480 negative pressure fans across 80 poultry houses. The pre-sales cooling calculation was accurate. Mortality dropped significantly in summer. After-sales support has been fast and professional. Will..."

Zh...
Zhang Hua
Farm Operations Director · Shandong, China
Auto Parts Manufacturing✓ Verified
★★★★★

"CE documentation was comprehensive and accepted first-time by our authority. The RDF-26 centrifugal coolers perform exactly as stated. Door-to-door delivery to Germany in 26 days. Communication was ex..."

Ma...
Markus Klein
Plant Manager · Bavaria, Germany
Auto Parts Manufacturing✓ Verified
★★★★★

"We installed 12 units of the 6.2m HVLS fans across our 18,000 m² auto parts factory. Workers stopped complaining about heat after the first week. Electricity bill dropped dramatically — far better t..."

Li...
Li Wei
Procurement Director · Zhejiang, China
Auto Parts Manufacturing✓ Verified
Get Your Free Quote

Tell Us Your Space. We Design the Solution.

Our engineers review your requirements and send a custom cooling layout, product recommendation, and energy savings calculation within 24 hours.

⚡
24-Hour Response
Technical proposal with product selection, layout, and pricing.
📐
Free CFD Cooling Calculation
Submit your floor plan. Get airflow simulation at no cost.
🚢
CIF Freight Quoted
We calculate sea/air shipping to your nearest port — included.
🔒
OEM & NDA Available
Custom branding and confidential projects welcome.
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Technical Specifications
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