Plastic Fan Blades Archives

Longwell: Safer, Stronger and More Energy-efficient Plastic Fan Blade Manufacturer

Plastic fan blades are manufactured through injection molding using engineering plastics, serving as core components in ventilation equipment like blowers and HVAC systems. Their rotation generates airflow, facilitating air circulation.

Constructed from plastics including PP, ABS, FRP, polyurethane resin, PET, and nylon, plastic impellers offer advantages such as lightweight construction, low cost, and corrosion resistance, making them ideal for indoor and outdoor applications in commercial, residential, and industrial settings.

Owing to the low melting point of plastics and their high malleability, blades can be engineered with enhanced aerodynamic properties. Examples include backward-curved or olive-shaped blades featuring complex surfaces, which effectively boost airflow volume and pressure while reducing energy consumption.

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9 Common Types of Plastic Fan Blades

Plastic Ceiling Fan Blades

Usually made of ABS polymer and similar resin, plastic ceiling fan blades can be molded into various shapes in the production process, which can not only serve as functional fans, but also serve as decoration for the interior.

Cross Flow Fan Blade

The plastic cross flow fan blade is a long cylindrical structure, which is made by injection molding and ultrasonic welding. Its unique cross-flow design can form a wide and uniform airflow coverage layer, providing a stable laminar air barrier.

Plastic Blower Fan Blade

Plastic blower fan blade is the “heart” of many ventilation and heat dissipation equipment. It rotates at high speed driven by the motor, forming centrifugal force to suck in air axially and throw it out radially, thus generating a continuous flow of air.

Plastic Exhaust Fan Blade

The design and material of the blades directly affect the performance, efficiency and noise level of the exhaust fan. The plastic blades are corrosion resistant, lightweight, low noise, easy to process, suitable for kitchen, bathroom, industrial ventilation, etc.

Plastic Radiator Fan Blade

Plastic radiator fan is a kind of axial fan. It drives the rotation of blades to push the air along the axial straight flow. The airflow takes away the heat when passing through the surface of the radiator, achieving the effect of heat dissipation and cooling.

Axial Fan Blade

The profile of efficient axial fan blade is wing-shaped, rather than flat, and this design produces greater wind pressure and reduces drag. The resulting airflow is parallel to the rotating shaft, pushing large amounts of air along a straight line.

Centrifugal Fan Blade

The centrifugal fan blade consists of a front disc, rear disc, blades, and hub. Air is drawn in axially, rotated 90 degrees within the impeller, and then ejected radially at high speed. It is suitable for systems that require overcoming pipeline resistance.

Backward Curved Fan Blades

The top of the backward curved blades is bent in the opposite direction to the rotation direction of the impeller. This design forms a strong structure, so that it can maintain a stable power even when the wind volume is too large, thus protecting the motor.

Forward Curved Fan Blades

In contrast to the backward curved type, the forward curved fan blades bend in the same direction as the impeller rotation. At the same size and speed, it can produce higher static pressure. It is compactly designed and cheaper to operate.

6 Common Materials of Plastic Fan Blades

ABS Plastic Fan Blades

ABS is non-toxic and odorless, with excellent temperature resistance and chemical resistance, and is easy to process and color. It is ideal for making blades that require high rigidity and balance, such as air-cooled cross-flow blades and centrifugal blades.

FRP Fan Blades

FRP, commonly referred to as reinforced plastic, is a composite material composed of glass fiber and resin matrix, with high strength-to-weight ratio. It has excellent corrosion resistance and can cope with various acids, alkalis and corrosive chemical gases.

Polypropylene Fan Blades

Polypropylene(PP) blades are low cost, lightweight and resistant to chemical corrosion, and are often used in small fans and low static pressure applications. High quality PP blades are reinforced with stiffeners and glass fiber reinforcement to enhance strength.

Polyurethane Resin Fan Blades

Compared with traditional epoxy resin and vinyl ester composites, blades made of polyurethane composites perform better in terms of tensile fatigue and interlayer fracture toughness, so they are often used in areas where performance is extremely high.

PET Fan Blade

PET engineering plastics have the characteristics of high strength, high rigidity, good dimensional stability and heat resistance. These characteristics make PET suitable for manufacturing blades that need to operate stably under high load or certain temperature conditions.

Nylon Fan Blade

Nylon blade has excellent wear resistance and high fatigue strength, as well as self-lubricating and oil-resistant properties. It can produce flexible deformation when the motor is rotating, thus significantly reducing energy consumption and noise.

6 Common Sizes of Plastic Fan Blades

4 Inch Plastic Fan Blade

6 Inch Plastic Fan Blades

8 Inch Plastic Fan Blade

9 Inch Plastic Fan Blades

12 Inch Plastic Fan Blades

16 Inch Plastic Fan Blade

Features of Plastic Fan Blades

Light Weight

ABS plastic blades can be more than 30% lighter than metal blades, effectively reducing the load of the motor, thus saving energy consumption.

High Plasticity

Plastic material can be molded into a variety of shapes. You can also use reinforcement to improve the rigidity of the blade and prevent deformation.

Corrosion Resistant

Plastic blades will not rust, especially suitable for humid, dust or chemical gas environment, such as workshop ventilation, sewage treatment station ventilation, etc.

Cost-Effective

The raw material and production cost of plastic is usually lower than that of metal blades, achieving higher cost effectiveness.

√ Material: Reforced AS, ABS, ABS+Glass Fiber, PP

√ Apply to the Brand: GREE, MIDEA, LG, CARRIER, YORK, TOSHIBA, Mitsubishi, Chigo, Haier, GE, Trane, TCL, AMBER, GE

√ Shaft Dameter: 4, 6, 8, 10, 12mm

√ Shaft Length: ≤ 1200mm

√ Shaft Sleeve Diameter: 4, 6, 8, 10, 12mm

√ Shaft Sleeve Length: ≤ 35mm

√ Color: Customized, generaly black, white, blue, and green, etc.

√ Rotation: CW & CCW

√ Set Screw: M4, M5, M8

Note: The above data represents the conventional configuration. For more OEM requirements, please contact us immediately for exclusive customized solutions and quotations.

√ Light weight, reducing the burden on the fan motor

√ Excellent frequency noise dispersion effect

√ Cost saving, economical and efficient

√ Good corrosion resistant to suit humid environment

√ All materials comply with the EU ROHS and REACH environmental regulations

Longwell Plastic Fan Blades： High-performance Impellers Suitable for Your Industrial or Residential Fans

Why Choose Longwell Plastic Fan Blades

Longwell, located in Ningbo, Zhejiang Province, China, is a factory specializing in the design and production of fans. Through nearly 3 decades of continuous development, we have pushed the performance and quality of each plastic fan blade to the extreme by leveraging cutting-edge material science, precision manufacturing techniques, and ongoing innovative design.

To ensure high performance in a variety of environments, Longwell uses lightweight, reliable engineering plastics as raw materials, so our blades have high mechanical strength and durability.

If you have specific requirements for the product, such as air volume, static pressure, installation size, noise index, etc., Longwell can design and put into production according to your needs. We are always committed to providing highly customized blade solutions.

Metal vs Plastic Fan Blades

Metal blades are made of materials including stainless steel 304/316, copper alloy, and aluminum alloy. Plastic options include PP, reinforced AS, ABS, and ABS with Glass Fiber. If you’re unsure whether to choose plastic or metal blades, keep reading for the detailed comparison between them.

Metal fan blades are generally durable and can withstand high temperatures, making them ideal for high-performance or industrial applications where high heat and durability are required. They are heavier than plastic, resulting in higher stability; however, they require more powerful motors.

Plastic fan blades are lighter, and more corrosion-resistant than their counterparts. It saves cost, that is ideal for home and other light commercial fans. They operate with less noise and are easier to install and move.

Longwell Plastic Fan Blade Size Chart

Catalogs & Brochures for Plastic Fan Blades

Click to read or download the sample of Longwell plastic blades online, learn more about the product information, and check the parameter table. If you choose the model and parameters, please contact us quickly for a quote.

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."

Applications of Plastic Fan Blade

Household Air Conditioner

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.

Automotive Air Conditioners

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.

Air Curtains

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.

Water Cooling Air Conditioner

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.

Fan Heaters

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.

Elevator Ventilation Blower

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.

Commercial Air Conditioning

Commercial air conditioners are located in large shopping malls, supermarkets, hospitals or other public areas, which require higher durability, air volume and noise control of the blades. The glass fiber reinforced plastic blades can operate stably for a long time and meet the requirements of low noise in commercial occasions.

Air Purifier

The multi-blade centrifugal fan is the core of the air purifier. It can generate stable and continuous pressure under the premise of low noise, forcing the air to pass through HEPA filter, activated carbon and other multiple filter layers to achieve high efficiency purification.

Tower Cooling Fans

The large axial flow fan blade used in cooling tower needs to have high strength and weather resistance, so as to withstand the harsh outdoor environment, such as sun, rain, temperature difference, etc., and maintain long-term efficient operation, so as to ensure the heat dissipation efficiency of cooling tower.

Frequent Questions You May Have about Plastic Fan Blade

1. Whats' the package for the bulk order of cross flow impellers ?

For outer package, high strength corrugated case is used, in which partitions are adopted and spacers (paper slips) are placed at top and bottom for protection.

The steel shaft of the product is protected with P protective cap to prevent scratches or stains. For outer packaging, five-layered corrugated box, which are used for sea transportation, plus paper petitions are adopted; for the packaging of shaft or bush ends, protective measures are adopted to avoid impact or damage during the transportation.

2. Can we do any OEM design ?

Customized Size is available based on our mould factory , please get in touch with us for detills. Longwell has extensive design and manufacturing experience in the HVAC ventilation industry.

Its main products are mainly supplied to globally renowned air conditioning manufacturers. It has rich OEM manufacturing experience and can meet the main equipment requirements of different customers.

3. What is the Main Technical parameter of the cross flow impeller of Longwell can do?

Main Technical Parameter

● Axial Runout: ≤0.5mm;

● Radial Runout: ≤0.4mm;

● Class of Dynamic Balance Accuracy G6.3

Corrosion-Resistant Plastic Impeller for Industrial Ventilation Systems

Longwell plastic fan blades are engineered for superior performance and durability. Crafted from high-quality materials, they are lightweight, which reduces the overall load on the motor and enhances energy efficiency!

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