AC Backward Curved Centrifugal Fan

AC Centrifugal fans are designed to produce directional airflow needed for drying and cooling in HVAC, electronics cooling, and industrial processes. These fans feature a drum-shaped design that produces high pressure of air required for application. Longwell International stands out as an AC centrifugal fans manufacturer because our fans are designed to meet the airflow requirements of various applications. Our team of engineers and technicians possess extensive knowledge and experience in fan design and engineering. We offer various customization options, including fan sizes, blade types, materials, and performance specifications.

Model no.: LWBA Series

Impeller SIZE: 133mm - 630mm (diameter )

Features:

Motor: AC Induction Motor with capacitor

Motor Protection: Thermal overload Protector ( TOP)

Bearing Type: Two Ball

Impeller Material: Plastic PA66 / Galvanized METAL / Sheet aluminium.

Operating Temp: -25°C~+60°C

Life Expectancy: 30, 000 Hours

Voltage: 230V, 115v, 380V

Type of protection: IP54.

Delivery time: 7 days for sample ;20~28 days for bulk orders

Certification: CE, UL, RoHS, CCC, ETL, etc

Advantages of our centrifugal fans

-High efficiency

-Long life span

-Compact design which can replace fans IEHL-ABEGG fan directly.

Click on the model below for specifications, and Order Online

How do AC Centrifugal Fans Work?

• AC centrifugal fans are distinguished by their impeller design, which offers them better resistance and makes them suitable for applications, such as dust collection, drying, blowing away excess coatings or debris, fume exhaust systems, and so on. These fans work on the principle of centrifugal force and employ air pressure differentials to produce airflow. Here is an overview of how centrifugal AC fans work.
• The AC centrifugal fan comprises a blower wheel or an impeller and a series of blades that are arranged in a radial or spiral pattern. When the fan receives power, the impellers rotate in the fan housing.
• Air is drawn to the fan through the inlet and flows in a straight line towards the fan's center.
• The centrifugal force is produced when AC centrifugal fan blades force the air outward from the center of the fan.
• This airflow pattern causes the air to move outward in a radial way and then diffuses when it hits the fan housing. This diffusion causes increased air pressure that forces the air to flow in a different direction.
• The pressurized air is discharged from the fan's discharge port or outlet port to perform desired tasks.

AC backward-curve centrifugal fans are high efficiency units available in a wide range of sizes, configurations and materials to meet any ventilation requirement.

The backward-inclined blower wheel design consists of blades that slant away from the direction of wheel travel. Longwell backward curve fans are characterized by high efficiency, high CFM and rugged long-life construction for high static pressure applications. Longwell fans are extremely efficient, requiring less horsepower than other types of fans. A variety of standard models or custom designs are available. Custom fans are available to whatever specifications needed.

Beneficial Features of Our AC Centrifugal Fans

Over the years, Longwell has established itself as a leading AC centrifugal fans manufacturer. The following features our fans have contributed to their popularity.

Our AC centrifugal fans are designed for maximum efficiency in different motor configurations, single inlet and double inlet, and different blade designs. We can provide the fans in the following blade designs.

Forward-Curved Blades: These fans feature shallow blades facing the direction of the rotation. The blades are suited for applications where a large volume of air needs to be generated at low speeds.

Backward-Curved Blades: As the name suggests, these blades are positioned away from the rotational direction. They are larger than forward-curved blades.

Radial Blades: These blades are fitted on the impeller and discharge the accelerated air radially. We can provide AC centrifugal fans fitted with radial blades in motor-driven or belt-driven designs.

Backward Inclined Aerofoil Blades: The aerofoil blades are equipped in fans where elevated or ambient temperatures are required, such as in power generation, chemical, resource recovery industries, and so on. Backward-inclined aerofoil blades assure quiet operations and high efficiency.

Customized AC centrifugal fans help move air with minimal energy consumption, reducing carbon footprint and energy costs.

These fans are made from durable material that helps ensure their lasting performance in challenging environments. For instance, the impeller of our AC centrifugal fans are made from an aluminum plate that makes them lightweight, durable, and reliable. This durable construction and other design features makes them ideal for operating environments ranging from: -25°C to 60°C.

These fans are equipped with ball bearings with an expected operating life of 50,000 hours at 40 degrees Celsius.

Our AC centrifugal fans meet the ROHS and CE standards.

Applications of AC Centrifugal Fans

• Here are some application areas of AC fans.
• Heating, ventilation and cooling (HVAC) i.e. building ventilation systems
• Air conditioning systems
• Dust and gas extractor fans
• Air filtration and pollution control devices
• High capacity dryers (for example, those used for commercial car washing)
• Industrial conveyors
• Fluid bed aerators (devices used for adding oxygen to water or other fluids i.e. sewage aeration)
• Gas boosters (for moving high-pressure gas or increasing gas pressure)
• Back-flushing (self-cleaning) filters
• Vehicle engines
• Industrial furnaces

FAQ:

1, Are the manufacturer ?

Yes, LONGWELL is a professional manufacturer which is the specialist in HVACR fans, motor and components for the applications of air conditioner, air ex-changer, coolers, heaters, floor convectors, sterilization purifier, air purifiers, medical purifiers, and ventilation, energy industry, 5G cabinet. ..

2, Whats your production capacity ?

We are capable to produce over millions pcs fans and motors annually.

3, Whats your main machines and capacity.

For the motors

We have owned CNC machines 18 units &4 auto-robots. capacity: 500k pcs annually.

Winding machine 20 units, capacity 500kpcs annually:

Magnetization machine 6: capacity 500kpcs annually

Balance machine 22 units: 500k pcs annually.

Boring mill: 2 units

High temp failure detection: 3 chambers 500k pcs annually.

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