Centrifugal Fan

Your Professional Centrifugal Fan Supplier

ECNITY is a professional manufacturer specializing in EC motors and fan solutions for HVAC and industrial applications. With years of experience in motor production, fan assembly, and system optimization, we provide energy-efficient centrifugal and axial fans for OEM manufacturers and system integrators worldwide. Our products are widely used in ventilation, air conditioning, cooling, and industrial airflow systems.

Customized Solutions

We offer flexible OEM and ODM support for airflow, pressure, motor control, and structural design. Each project is adjusted to match different applications and customer needs.

Quality Control

Our manufacturing covers the full production process, including motor assembly, impeller balancing, fan assembly, and testing. Strict quality control helps ensure product consistency and long-term reliability.

Professional Service

Effective technical communication improves project efficiency. Our engineering team works closely with customers to reduce development risks, shorten lead times, and support long-term cooperation.

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Parameter

Model No.	Rated Voltage	Operation Voltage	Frequency	Rated Current	Rated Power	Rated Speed	Air Flow	Air Pressure	Noise Level
Model No.	VAC	VAC	Hz	A	W	RPM	m3/h	Pa	dBA
EN-B280-H050-E115-B01	115	90~135	50/60	2.90	188	2450	1580	550	75
EN-B280-H050-E230-B01	230	184~274	50/60	1.50	188	2450	1580	550	75

Types of Centrifugal Fan

The centrifugal fan produced by our company mainly include the following types:

EC Centrifugal Fans

EC centrifugal ventilation fan is a widely used airflow solution designed to provide reliable ventilation in systems requiring controlled airflow and moderate to high static pressure.

DC Centrifugal Fans

DC 24V Plastic Centrifugal Fan is a compact, energy-efficient solution engineered for modern ventilation needs in low-voltage environments.

115V 230V EC Motor Centrifugal Ventilator

EC Plug Fan

EC centrifugal plug fan is a modern air-moving solution designed for direct integration into air handling units and ventilation systems without the need for a traditional scroll housing.

Advantages of Centrifugal Fan

01/

First-rate energy efficiency
Constant airflow allows centrifugal fans to generate energy that reaches up to 84% static efficiency. These higher efficiency levels are ideal for sustaining larger air systems.

02/

Easy to maintain
Lighter material fans can be easily cleaned when you deem it necessary. Moreover, certain fans have self-cleaning characteristics, making daily maintenance that much easier.

03/

Enhanced durability
These fans are durable enough to properly operate in the most corrosive and erosive environments.

04/

Ability to restrict overloading
Certain centrifugal fans are fitted with non-overloading horsepower curves will ensure the motor will not overload if its capacity is exceeded.

05/

High versatility
Centrifugal fans are useful for multiple airflow/pressure combinations, and they can process several airflow conditions, including clean, dry, and wet air

06/

Multiple sizes
These fans are available in several sizes to accommodate diverse applications—such as those found in tight spaces or difficult to reach areas.

Applications of Centrifugal Fan

115V 230V EC Motor Centrifugal Ventilator suppliers

Ventilation
One of the primary purposes of centrifugal fans is for ventilation systems. Whether it's a home, office, hospital, or commercial building, proper air circulation is vital for maintaining a healthy indoor environment.

Cooling
Centrifugal fans play a crucial role in cooling applications, such as industrial air conditioning systems. They assist in dissipating heat generated by machinery, industrial processes, and electronic components.

HVAC Systems
For efficient heating, ventilation, and air conditioning (HVAC) systems, centrifugal fans are indispensable. They are responsible for circulating and distributing conditioned air throughout buildings, ensuring optimal temperature, humidity, and air quality.

Industrial Applications
Centrifugal fans find extensive use in various industrial processes. They play a vital role in drying applications, removing moisture and facilitating faster drying times.

Air Filtration
Airborne contaminants pose risks to health and productivity. In conjunction with air filters, centrifugal fans aid in air filtration, removing dust, particles, and pollutants from the air.

Installation Steps for Centrifugal Fans

Carefully Select The Installation Location
The installation location of the centrifugal fan is crucial. First of all, it should be kept away from vibration sources and corrosive gases to ensure that the fan operates in a stable and safe environment. Secondly, make sure that there is enough space for the fan to be installed, and take into account future maintenance and overhaul.

Thoroughly Inspect The Wind Turbine Components
Before installation, it is essential to carry out a thorough inspection of the individual components of the centrifugal fan. This includes scrutinizing the integrity and wear of critical components such as impellers, motors, belts, etc.

Prepare The Installation Tools And Materials
Before we start our wind turbine installation journey, we first make sure that all the installation tools and materials are ready. This is not only basic installation tools such as screwdrivers and wrenches, but also small parts such as bolts and nuts for fixing.

Install the Main Body of The Fan Precisely
The installation process of the main body of the wind turbine requires us to be careful and precise. In particular, the connection between the motor and the fan ensures that the axes of the two are perfectly aligned, which is the key to the smooth operation of the fan.

Strictly Carry Out Power Wiring and Trial Operation
When the main body of the wind turbine is installed, we need to carry out the steps of power wiring. At this time, it is important to operate according to the rated voltage and wiring diagram of the motor, as incorrect wiring may lead to damage to the motor and even cause safety accidents.

Precautions for Using Centrifugal Fans

Pre-Startup Checks and Preparations
Inspect whether the motor inlet and control wires are securely fastened. Check if all component connecting screws are securely fastened. Ensure the bearing oil level (for oil-lubricated bearings) is at the correct level in the sight hole. Check if the inlet damper operates smoothly and close it. Open the cooling water valve and confirm unobstructed water flow. Notify the control room that it is safe to start.

Startup
Under normal circumstances, start the fan according to the startup sequence from the electrical control room. After startup and when the motor reaches normal speed, immediately open the inlet damper and adjust it to the required position (controlled from the control room). Monitor whether the current falls within the specified range. Listen for normal sounds from the fan, bearing, and observe bearing vibrations. If the initial startup is not successful, identify the cause and rectify it before attempting another startup.

Shutdown
Under normal circumstances, shut down the system in accordance with the designated shutdown sequence from the electrical control room. Ensure that personnel wear proper protective equipment.
Do not use wet rags or other tools to clean energized equipment. If cleaning is necessary, ensure that power is disconnected. Prohibit any unauthorized actions and strictly adhere to equipment safety regulations.

EC Backward Curved Centrifugal Fans suppliers

Customizable Options

Static Pressure	100–3,500 Pa
Motor Type	AC Motor / EC Motor / DC Motor
Voltage	110V / 220V / 380V / 50Hz / 60Hz
Speed Control	Fixed Speed / PWM / Variable Speed
Impeller Material	Galvanized Steel / Aluminum / Stainless Steel
Housing Material	Steel Sheet / Stainless Steel / Powder Coated Steel
Blade Size	120–900 mm

Packaging and Shipping

Packaging	Cardboard boxes, wooden crates
Shipping	Shipping by sea, by air, by express are acceptable. According to your requirements.

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FAQ

Q: What is a centrifugal fan?

A: Centrifugal fans are robust, typically drum-shaped devices used to provide a high-pressure flow of air for cooling, ventilation, and other uses. Commonly known as blowers, centrifugal fans are noted for their reliability, adaptability and low noise output.

Q: What is the difference between a centrifugal fan and a regular fan?

A: Centrifugal fans, also known as blowers, immediately differ from axial fans as they are more suitable for scenarios where air needs to be displaced under high-pressure. In this case, this solution is more appropriate in contexts such as air filtration systems, cooling towers, and several industrial processes.

Q: What is another name for a centrifugal fan?

A: A centrifugal fan—also known as a radial fan or blower—is a mechanical device used to move air or other gases in a wide range of applications.

Q: Are centrifugal fans loud?

A: Centrifugal fans can achieve the same pressure as axial fans at lower speeds. Blade Design: Backward-curved blades, commonly used in centrifugal fans, produce less noise than forward-curved or straight blades. Installation Environment: Vibration, duct design, and placement can amplify or reduce perceived noise.

Q: What is the lifespan of a centrifugal fan?

A: Centrifugal fans, which are used for high-pressure applications, generally last between 15 to 20 years. Their robust construction and ability to handle more demanding conditions contribute to their longer lifespan. Regular maintenance and proper usage can further extend their operational life.

As one of the most experienced centrifugal fan manufacturers and suppliers in China, we offer a wide range of products with superior quality. Please feel free to buy high-grade centrifugal fan made in China here from our factory. We also accept customized orders.