Heavy Duty Industrial Fans & Blowers Manufacturer | Custom Solutions - LONGWELL

Engineering heavy-duty, energy-efficient, and customizable airflow solutions for global manufacturing and HVAC applications.

Category A: OEM and Engineering Components (Heavy-Duty & Engineering)

Explosion Proof Industrial Fans

Custom Industrial Fans

Category B: Commercial Ventilation Finished Products & Wholesale

Industrial Ceiling Fans

Industrial Misting Fans

Wall Mounted Industrial Fan

Industrial Drum Fan

Industrial Floor Fans

Industrial Pedestal Fan

Tripod Stand Fan

Industrial Centrifugal Fans

Longwell Air Conditioner Fan Blade Size Chart

Model	Type	Size(Inch)	Power	Voltage(V)	Rotate speed(r/min)	Air Flow(m³/min)	Noise[(dB(A)]	Height(m)	Diameter(m)	Moter	Velocity	Capacity(L)	Color
LW-ECCF-7.3	Industrial Ceiling Fan		1.6KW	220/380		10800	≤40		7.3
LW-ECCF-6.2	Industrial Ceiling Fan		1.3KW	220/380		9800	≤40		6.2
LW-ECCF-5.2	Industrial Ceiling Fan		1.1KW	220/380		8600	≤40		5.2
LW-ECCF-4.2	Industrial Ceiling Fan		0.75KW	220/380		6600	≤40		4.2
LW-ECCF-3.2	Industrial Ceiling Fan		0.52KW	220/380		3600	≤40		3.2
LW-ECCF-2.6	Industrial Ceiling Fan		0.52KW	220/380		3600	≤40		2.6
LWIF-650(26")S(U)-01A	Mist Fan	26	260W	220/110		145		1.75		100% copper	3	49	blue
LWIF-650(26")S(U)-01C	Mist Fan	26	260W	220/110		145		1.75		100% copper	3	49	blue
LWIF-750(30")S(U)-01A	Mist Fan	30	350W	220/110		145		1.75		100% copper	3	49	blue
LWIF-750(30")S(U)-01C	Mist Fan	30	350W	220/110		145		1.75		100% copper	3	49	blue
LWIF-650(26")S(U)-02A	Mist Fan	26	260W	220/110		145		1.75		100% copper	3	45	black
LWIF-650(26")S(U)-02B	Mist Fan	26	260W	220/110		145		1.75		100% copper	3	45	black
LWIF-650(26")S(U)-02C	Mist Fan	26	260W	220/110		145		1.75		100% copper	3	45	black
LWIF-750(30")S(U)-02A	Mist Fan	30	350W	220/110		145		1.75		100% copper	3	45	black
LWIF-750(30")S(U)-02B	Mist Fan	30	350W	220/110		145		1.75		100% copper	3	45	black
LWIF-750(30")S(U)-02C	Mist Fan	30	350W	220/110		145		1.75		100% copper	3	45	black
LWIF-500(20")U(S)-01B	Mist Fan (hand pushed)	20	500W	220/110
LWIF-500(20")U(S)-01A	Mist Fan (hand pushed)	20	350W	220/110
LWIF-500(20")U(S)-02B	Mist Fan (hand pushed)	20	550W	220/110
LWIF-500(20")U(S)-01C	Mist Fan (Suspended)	20	550W	220/110
LWIF-650(26")S(U)-03A	Mist Fan	26	260	220/110		145		1.75		100% copper	3	45	black
LWIF-650(26")S(U)-03B	Mist Fan	26	260	220/110		145		1.75		100% copper	3	45	black
LWIF-750(30")S(U)-03A	Mist Fan	30	350	220/110		155		1.75		100% copper	3	45	black
LWIF-750(30")S(U)-03B	Mist Fan	30	350	220/110		155		1.75		100% copper	3	45	black
LWIF-650(26")S(U)-04A	Mist Fan	26	260	220/110		145				100% copper	3	10	white
LWIF-750(30")S(U)-04A	Mist Fan	30	350W	220/110		145				100% copper	3	10	white
LWIF-500(20")T(S)(U)-03A	Industrial Wall Fan	20	120W	380/220/110	1380	170	55		0.5
LWIF-650(26")T(S)(U)-05A	Industrial Wall Fan	26	260	380/220/110	1380	205	63		0.65
LWIF-750(30")T(S)(U)-05A	Industrial Wall Fan	30	350	380/220/110	1380	290	69		0.7
LWIF-500(20")T(S)(U)-04A		20	120W	380/220/110	1380	170	55		0.5
LWIF-650(26")T(S)(U)-06A		26	260W	380/220/110	1380	205	63		0.65
LWIF-750(30")T(S)(U)-06A		30	350W	380/220/110	1380	290	69		0.75
LWIF-500(20")T(S)(U)-04B		20	120W	380/220/110	1380	170	55		0.5
LWIF-650(26")T(S)(U)-06B		26	260W	380/220/110	1380	205	63		0.65
LWIF-750(30")T(S)(U)-06B		30	350W	380/220/110	1380	290	69		0.75
LWF-250(10")S-01A		10	65	220	900-1400				0.25
LWF-300(12")S-01A		12	70	220	900-1400				0.3
LWF-350(14")S-01A		14	95	220	900-1400				0.35
LWF-400(16")S-01A		16	125	220	900-1400				0.4
LWF-450(18")S-01A		18	165	220	900-1400				0.45
LWF-500(20")S-05A		20	195	220	900-1400				0.5
LWIF-450(18")S-02A	Home Commercial Fan		180W	220	0.33333333333333				0.45
LWIF-500U(S)-01		20	130	110~120 220~240	1380	150	58
LWIF-600U(S)-01		24	215	110~120 220~240	1380	195	60
LWIF-650U(S)-01		26	230	110~120 220~240	1380	205	61
LWIF-750U(S)-01		30	260	110~120 220~240	1380	290	65
LWIF-450U(S)-01		18	110	110~120 220~240	1380	130	55
LWIF-500U(S)-02		20	130	110~120 220~240	1380	150	58
LWIF-600U(S)-02		24	215	110~120 220~240	1380	195	60
LWIF-650U(S)-02		26	230	110~120 220~240	1380	205	61
LWIF-750U(S)-02		30	260	110~120 220~240	1380	290	65
LWIF-850U(S)-01		34	290	110~120 220~240	1380	320	68
LWIF-450U(S)-02	Industrial Tripod Stand Fan	18	110	110~120 220~240	1380	130	55
LWIF-500U(S)-03	Industrial Tripod Stand Fan	20	130	110~120 220~240	1380	150	58
LWIF-600U(S)-03	Industrial Tripod Stand Fan	24	215	110~120 220~240	1380	195	60
LWIF-650U(S)-03	Industrial Tripod Stand Fan	26	230	110~120 220~240	1380	205	61
LWIF-750U(S)-03	Industrial Tripod Stand Fan	30	260	110~120 220~240	1380	290	65
LWIF-850U(S)-02	Industrial Tripod Stand Fan	34	290	110~120 220~240	1380	320	68
LWF-650U(S)-04	Industrial Mist Fan	26	190	110~120 220~240	1380	205	61
LWF-750U(S)-04	Industrial Mist Fan	30	220	110~120 220~240	1380	290	65
LWIF-450U(S)-03	3 in 1 Industrial Fan	18	55W	110~120 220~240	1300	120	50
LWIF-450U(S)-04	Commercial Stand and Wall Fan	18	135W	110~120 220~240	1380	125	55
LWIF-450U(S)-05	Commercial Floor Fan	18	135~150	110~120 220~240	1380	125	55
LWIF-450U(S)-06	Commercial Floor Fan	18	135~150	110~120 220~240	1380	125	55
LWIF-500U(S)-04	Commercial Floor Fan	20	135~150	110~120 220~240	1380	125	57
LWF-250U(S)-01	Powerful Floor Fan	10	30	110~120 220~240	1350	23	42
LWF-300U(S)-01	Powerful Floor Fan	12	40	110~120 220~240	1350	36	45
LWF-350U(S)-01	Powerful Floor Fan	14	60	110~120 220~240	1350	70	50
LWF-400U(S)-01	Powerful Floor Fan	16	80	110~120 220~240	1350	88	52
LWF-450U(S)-07	Powerful Floor Fan	18	100	110~120 220~240	1350	95	55
LWF-500U(S)-05	Powerful Floor Fan	20	120	110~120 220~240	1350	100	58

Catalogs & Brochures for Industrial Fans

Heavy Duty Industrial Fan Performance & Wind Tunnel Test

3D CAD Models | Fan Performance Curves | Installation Manuals

Longwell: Your Premier Industrial Fans Supplier in China

Industrial fans are robust air movement systems developed for commercial and industrial environments where large-scale ventilation, cooling, and process airflow are required. Beyond basic cooling, they form an essential part of ventilation networks, manufacturing operations, HVAC systems, and overall facility air management.

Manufactured with heavy-gauge steel, aluminum alloys, or corrosion-resistant materials, and equipped with efficient motor systems, Longwell industrial fans are built for dependable operation. Typical operating temperature ranges extend from –20°C to +60°C, depending on configuration. Airflow capacities generally range from 2,000 to 50,000 m³/h, with models available for both low- and high-static-pressure applications to match different installation requirements.

Common configurations include axial fans, centrifugal fans, floor fans, wall-mounted fans, and tripod stand fans. By supporting effective air circulation and maintaining stable indoor air conditions, industrial fans play a key role in improving production efficiency, enhancing workplace safety, and optimizing overall energy performance in industrial facilities.

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Why Choose Longwell Industrial Fans

● Reliable Product Performance

Longwell industrial fans are designed for stable airflow, low noise, and long service life. With optimized aerodynamic designs and strict quality testing, our products deliver reliable performance in HVAC, heating, and ventilation systems.

● Strong Manufacturing Capability

Our modern manufacturing facility is equipped with advanced production and testing equipment, ensuring consistent quality and precision. Experienced engineers and strict quality control allow us to maintain reliable performance across every production batch.

● Flexible OEM & Custom Solutions

Longwell offers flexible OEM and custom manufacturing services to meet diverse application needs. From design support to mass production, our team works closely with customers to deliver fan solutions tailored to their specific requirements.

● High Configuration

Constructed with high-durability materials including high-strength aluminum alloy housing and corrosion-resistant stainless steel blades, Longwell industrial fans ensure long-term stable operation in high-temperature, high-humidity, and dusty environments. Our products feature IP55+ protection and optimized heat dissipation, effectively resisting oil and moisture damage while extending motor lifespan.

Features of Air Conditioner Fan Blade

Customizable

Flexible OEM and custom fan solutions designed to match your equipment requirements.

Energy-Efficient

Optimized aerodynamic design helps reduce energy consumption while maintaining stable airflow.

Predictive Maintenance

Durable components and reliable design support longer service intervals and reduced downtime.

International Certification

Products meet international standards to ensure quality, safety, and global compatibility.

Specifications of Industrial Fans

● Voltage Ranges: 230V

● Frequency: 50/60 Hz

● Diameter: 30mm (impeller diameters)

● Motor Types: BLEC External Rotor Motor

● Speed Control: 0-10V Signal / PWM / RS485(Optional)

● Ambient Temp: -25°C~ +60°C

● Certificating: All necessary certifications suitable for USA & Europe, ETL, UIL, CE, ROHS, ISO19001, ISO 14001, BSCI

● Protection Level: IP44 ,IP54,IP55

● Electronic Protection: Current limiting protection, Over-temperature protection, Over-current protection, Locked-rotor protection, Soft start

● Working & Storage: Operating temperature: -25-60°C; Operating humidity: 0~85 % RH

● Storing temperature: -25 ~ 70°C; Storing humidity: 0~95 % RH

● Applicable altitude range: <1000m

● Balancing: According to JB/T 9101-1999 requirements G6.3

How to Choose the Best Industrial Fan for Your Warehouse

Excessive temperature in large warehouses or factories can lead to a series of consequences, including low employee productivity, reduced efficiency, and increased energy costs. Therefore, efficient ventilation is crucial, making industrial fans indispensable, provided you choose the most suitable fan for the space.

When selecting industrial fans for your large warehouse, consider factors such as the size of the ventilation area, durability, energy efficiency, noise level, maintenance requirements, and environmental conditions. Ensure you choose an industrial fan that best suits your warehouse size and environment, achieving maximum efficiency.

If your warehouse has a large space or high ceilings, HVLS fans are the best choice. They draw in large volumes of air at low speeds, providing ample airflow throughout the warehouse at a relatively low energy cost.

When your warehouse ventilation needs are not high, axial fans can quickly deliver air over long distances. Ideally, they should be installed in conjunction with a heating, ventilation, and air conditioning (HVAC) system for optimal ventilation.

Centrifugal fans are best suited for high-pressure applications and duct systems. It can provide directional airflow to specific areas within the warehouse, and its cleverly designed casing makes it unaffected by dust, debris, and other impurities in the air.

What Our Customers Say after Used

"Metallpulver und Dämpfe beim 3D-Druck erfordern effektive Absaugung. Longwells Industrieventilatoren mit ATEX-Zertifizierung handhaben explosive Metallstäube sicher. Hoher Unterdruck (2500Pa) bei stabilem Luftstrom. Mitarbeiter-Atemluftmessungen zeigen 95% Reduzierung der Exposition. Produktivität stieg 22% durch verbesserte Arbeitsbedingungen."

"Сибирские условия экстремальны для оборудования. Вентиляторы Longwell со специальными низкотемпературными подшипниками и нагревателями работают при -45°C без сбоев. Работают 6 лет с доступностью 98,5%. Сократили время простоя на 60% по сравнению с предыдущим поставщиком."

"Petroleum refineries demand highest safety standards. Longwell's explosion-proof fans meet API 560 specifications with ATEX certification. Stainless steel construction with epoxy coating resists H₂S and other corrosives. Operating in hazardous Zone 1 areas for 7 years with zero incidents. SIL 2 safety integrity level verified."

Applications of Industrial Fans

Laboratory

Both indoor and outdoor units of household air conditioners require blades. The indoor unit typically uses through-flow or centrifugal blades, while the outdoor unit employs axial-flow blades. These components function through distinct structural designs and operational principles to guide airflow in specific directions, ensuring the air conditioner operates efficiently.

Factories

Compared with household air conditioners, cars require more space for the blades, so compact centrifugal or axial flow blades are popular in car air conditioners. These plastic blades have high rigidity and can adapt to the high temperature and vibration environment inside the car.

Sports Fields

Cascading air blades are the ideal choice for air curtains. They are usually installed above the door to create a uniform, continuous curtain of air that effectively blocks outdoor microbes such as dust, smoke, odors and insects, and prevents indoor heating and cooling from escaping, saving electricity.

Stations

Water-cooled air conditioners are often located in humid environments, so corrosion-resistant plastic blades are the perfect choice. They effectively resist corrosion from moisture and chemicals, preventing rust like metal blades do, thus ensuring long-term stable operation of the equipment.

Schools

The plastic fan blades in the heater need to withstand high outlet temperature. Engineering plastics, such as PPS, can maintain stable shape and function at a certain high temperature, and its axial flow design can effectively blow hot air uniformly.

Farms

The ventilation system of elevator cabins has a very limited space and high noise control requirements. Small axial flow or centrifugal plastic blades can well balance air volume, volume and noise, ensuring fresh air in the cabin and keeping the operating sound at a low level.

What Our Customers Say after Used

"I have been supplying fan components for textile mill ventilation systems for years. After adopting Longwell's reinforced polypropylene (PP) blades, our equipment has maintained stable operation for over six months without any performance degradation. The blades' lightweight design significantly reduces motor load, resulting in substantial electricity cost savings!"

"As a retailer, I prioritize product performance and customer feedback. Our store features your company's 5-blade AS plastic fan blades. Many customers have reported the fans provide gentle, comfortable airflow with significantly quieter operation compared to our previous 3-blade models, ensuring complete sleep undisturbed."

"Longwell's PPS plastic blades for high-temperature applications not only maintain the lightweight advantages of plastic materials but also demonstrate superior heat resistance and rigidity beyond my expectations. I tested them on a GFM0812GU-01 cooling module, where the blade shape remained stable even under extreme rotational speeds."

Frequent Questions You May Have about Air Conditioner Fan Blade

1. What are the different types of industrial fans and their applications?

The most common types of industrial fans include centrifugal fans, axial fans, and mixed flow fans. Centrifugal fans are typically used in systems that require higher pressure, such as HVAC equipment and dust extraction.

Axial fans are designed for moving large volumes of air in ventilation or cooling applications. Mixed flow fans combine the advantages of both designs, offering balanced airflow and pressure performance.

LONGWELL provides a wide range of industrial fan solutions, and our engineering team can help recommend the right model based on your airflow and installation requirements.

2. Are industrial fans expensive to run?

The operating cost of an industrial fan largely depends on motor efficiency and system design. Modern industrial fans equipped with EC motors (electronically commutated motors) consume significantly less electricity than traditional AC motor systems.

LONGWELL integrates energy-efficient EC motor technology in many fan models, helping customers reduce power consumption while maintaining high airflow performance. Although high-efficiency fans may have a slightly higher upfront cost, the long-term energy savings typically provide a strong return on investment.

3. Can LONGWELL manufacture custom industrial fans for harsh environments?

Yes. LONGWELL offers OEM and ODM manufacturing services for industrial fans used in demanding environments.

Our engineering team can design custom fan solutions with corrosion-resistant materials such as stainless steel, specialized alloys, or protective coatings. We also provide options for high-temperature applications, dust-laden environments, and other industrial conditions where standard fans may not perform reliably.

4. How loud are heavy-duty industrial fans?

Like most mechanical equipment that moves large volumes of air, industrial fans generate some level of noise during operation. However, well-designed fans can significantly reduce sound levels through optimized impeller design and precise dynamic balancing.

LONGWELL industrial fans are engineered to maintain stable airflow while keeping noise within widely accepted industrial safety standards, making them suitable for continuous operation in commercial and industrial environments.