Plastic Fan Blade Archives

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

Made of engineering plastics through injection molding and other processes, plastic impellers are core components in ventilation equipment such as blowers and HVAC systems. Their rotation generates airflow and promotes air movement.

Made from plastics such as PP, ABS, FRP, polyurethane resin, PET, and nylon, plastic impellers are characterized by their light weight, low cost, and corrosion resistance, making them ideal for indoor and outdoor use in commercial, residential, and industrial environments.

Due to the low melting point of plastic, its high plasticity allows for more aerodynamic blade designs with complex curved surfaces, such as backward-inclined or olive-shaped blades, effectively increasing air volume and pressure while reducing energy consumption.

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.

Duct Fan Types by Installation Areas

Inline Duct Fan

The inline duct fan adopts high efficiency backward curved centrifugal impeller design, pipe diameter range of 150mm to 315mm, maximum air volume up to 1000m³/h. It is embedded and fixed in the ventilation duct, integrated with the pipeline.

Smoke Extraction Fan

The smoke extraction fan is a specialized use of duct fan in fire emergency fields. It has a built-in cooling system that can operate continuously for over 30 minutes at 280℃, with air flow rate reaching 25,200 m³/h, ensuring the safe evacuation of people in buildings.

Duct Blower Fan

As the power source of ventilation systems, duct blower fan is usually installed at the areas requiring pressurization, which solves the problem of insufficient power in terminal rooms of central systems. It is widely used in exhaust treatment, pneumatic transportation, etc.

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.

Corrosive

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.

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

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.

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

Longwell Duct Fan Selection Chart

Type	Model No.	Motor type	Blade Diameter (mm)	Material	Protection Class	Voltage(V)	Frequency(Hz)	Power(W)	Speed(RPM)	static Pressure(Pa)	Air Volume(m³/h)	Electric Current(A)	Noise(dBA)	Working Temperature(℃)
Mixed Flow Duct Fan	LWDA-100(4")S-PWN-14	AC	100	Plastic	IP44	230	50	36	2360	163	325	0.16	30	-30℃～+60℃
Mixed Flow Duct Fan	LWDA-100(4")S-PWN-15	AC	100	Plastic	IP44	230	50	25	1900	135	205	0.11	24	-30℃～+60℃
Mixed Flow Duct Fan	LWDA-100(4")U-PWN-16	AC	100	Plastic	IP44	115	60	34	2360	163	325	0.29	30	-30℃～+60℃
Mixed Flow Duct Fan	LWDA-100(4")U-PWN-17	AC	100	Plastic	IP44	115	60	34	1900	135	205	0.23	24	-30℃～+60℃
Mixed Flow Duct Fan	LWDA-125(5")S-PWN-06	AC	125	Plastic	IP44	230	50	39	2360	168	330	0.18	31	-30℃～+60℃
Mixed Flow Duct Fan	LWDA-125(5")S-PWN-07	AC	125	Plastic	IP44	230	50	28	1950	137	293	0.14	30	-30℃～+60℃
Mixed Flow Duct Fan	LWDA-125(5")U-PWN-08	AC	125	Plastic	IP44	115	60	37	2360	168	330	0.31	31	-30℃～+60℃
Mixed Flow Duct Fan	LWDA-125(5")U-PWN-09	AC	125	Plastic	IP44	115	60	29	1950	137	293	0.24	30	-30℃～+60℃
Mixed Flow Duct Fan	LWDA-150(6")S-PWN-11	AC	150	Plastic	IP44	230	50	59	2400	168	660	0.22	32	-30℃～+60℃
Mixed Flow Duct Fan	LWDA-150(6")S-PWN-12	AC	150	Plastic	IP44	230	50	41	2050	137	530	0.19	30	-30℃～+60℃
Mixed Flow Duct Fan	LWDA-150(6")U-PWN-13	AC	150	Plastic	IP44	115	60	59	2480	355	674	0.49	32	-30℃～+60℃
Mixed Flow Duct Fan	LWDA-150(6")U-PWN-14	AC	150	Plastic	IP44	115	60	44	2050	302	535	0.36	30	-30℃～+60℃
Mixed Flow Duct Fan	LWDA-200(8")S-PWN-09	AC	200	Plastic	IP44	230	50	130	2300	384	910	0.6	40	-30℃～+60℃
Mixed Flow Duct Fan	LWDA-200(8")S-PWN-10	AC	200	Plastic	IP44	230	50	113	1650	303	735	0.55	38	-30℃～+60℃
Mixed Flow Duct Fan	LWDA-200(8")U-PWN-11	AC	200	Plastic	IP44	115	60	182	2480	435	1250	1.59	41	-30℃～+60℃
Mixed Flow Duct Fan	LWDA-200(8")U-PWN-12	AC	200	Plastic	IP44	115	60	128	1950	302	750	1.06	38	-30℃～+60℃
Mixed Flow Duct Fan	LWDA-250(8'')S-PWN-05	AC	250	Plastic	IP44	230	50	175	2500	420	1600	/	50	-30℃～+60℃
Mixed Flow Duct Fan	LWDA-315(12.6'')S-PWN-05	AC	315	Plastic	IP44	230	50	320	2500	450	2500	/	55	-30℃～+60℃
Mixed Flow Duct Fan	LWDA-100 (4")U-PWN-01	AC	100	Plastic	IP54	110-120	60	41	3350	/	410CFM	/	52	-25℃~60℃
Mixed Flow Duct Fan	LWDA-100 (4")S-PWN-02	AC	100	Plastic	IP54	220-240	50/60	41	2900	/	605CMH	/	51	-25℃~60℃
Mixed Flow Duct Fan	LWDA-125 (5")U-PWN-01	AC	125	Plastic	IP54	110-120	60	41	3350	/	410CFM	/	52	-25℃~60℃
Mixed Flow Duct Fan	LWDA-125 (5")S-PWN-02	AC	125	Plastic	IP54	220-240	50/60	41	2900	/	605CMH	/	51	-25℃~60℃
Mixed Flow Duct Fan	LWDA-150 (6")U-MWN-01	AC	150	Metal	IP54	110-120	60	55	3400	/	437CFM	/	58	-25℃~60℃
Mixed Flow Duct Fan	LWDA-150 (6")S-MWN-02	AC	150	Metal	IP54	220-240	50	41	2900	/	620CMH	/	55	-25℃~60℃
Mixed Flow Duct Fan	LWDA-200 (8")U-MWN-01	AC	200	Metal	IP54	110-120	60	179	3400	/	720CFM	/	65	-25℃~60℃
Mixed Flow Duct Fan	LWDA-200 (8")S-MWN-02	AC	200	Metal	IP54	220-240	50	143	2900	/	1150CMH	/	59	-25℃~60℃
Mixed Flow Duct Fan	LWDA-250 (10")U-MWN-01	AC	250	Metal	IP54	110-120	60	228	3000	/	1219CFM	/	69	-25℃~60℃
Mixed Flow Duct Fan	LWDA-250 (10")S-MWN-02	AC	250	Metal	IP54	220-240	50	162	2750	/	1900CMH	/	68	-25℃~60℃
Mixed Flow Duct Fan	LWDA-300 (12")U-MWN-01	AC	300	Metal	IP54	110-120	60	489	3450	/	1900CFM	/	78	-25℃~60℃
Mixed Flow Duct Fan	LWDA-300 (12")S-MWN-02	AC	300	Metal	IP54	220-240	50	320	2900	/	3150CMH	/	72	-25℃~60℃
Mixed Flow Duct Fan	LWDA-350 (14")U-MWN-01	AC	350	Metal	IP54	110-120	60	260	1720	/	2130CFM	/	74	-25℃~80℃
Mixed Flow Duct Fan	LWDA-350 (14")S-MWN-02	AC	350	Metal	IP54	220-240	50	903	2900	/	6450CMH	/	79	-25℃~80℃
Mixed Flow Duct Fan	LWDA-400 (16")U-MWN-01	AC	400	Metal	IP54	110-120	60	440	1780	/	2500CFM	/	75	-25℃~80℃
Mixed Flow Duct Fan	LWDA-400 (16")S-MWN-02	AC	400	Metal	IP54	220-240	50	1300	2940	/	7100CMH	/	83	-25℃~80℃
Mixed Flow Duct Fan	LWDE-100 (4")U-PWN-01	EC	100	Plastic	IP54	110-120	60	35	3350	/	410CFM	/	52	60℃
Mixed Flow Duct Fan	LWDE-100 (4")S-PWN-02	EC	100	Plastic	IP54	220-240	50/60	35	3350	/	697CMH	/	52	60℃
Mixed Flow Duct Fan	LWDE-125 (5")U-PWN-01	EC	125	Plastic	IP54	110-120	60	35	3350	/	410CFM	/	52	60℃
Mixed Flow Duct Fan	LWDE-125 (5")S-PWN-02	EC	125	Plastic	IP54	220-240	50/60	35	3350	/	697CMH	/	52	60℃
Mixed Flow Duct Fan	LWDE-150 (6")U-MWN-01	EC	150	Metal	IP54	110-120	60	35	3400	/	437CFM	/	58	60℃
Mixed Flow Duct Fan	LWDE-150 (6")S-MWN-02	EC	150	Metal	IP54	220-240	50/60	35	3400	/	720CMH	/	58	60℃
Mixed Flow Duct Fan	LWDE-200 (8")U-MWN-01	EC	200	Metal	IP54	110-120	60	140	3300	/	700CFM	/	61	60℃
Mixed Flow Duct Fan	LWDE-200 (8")S-MWN-02	EC	200	Metal	IP54	220-240	50/60	140	3300	/	1310CMH	/	61	60℃
Mixed Flow Duct Fan	LWDE-250 (10")U-MWN-01	EC	250	Metal	IP54	110-120	60	195	3000	/	1219CFM	/	69	60℃
Mixed Flow Duct Fan	LWDE-250 (10")S-MWN-02	EC	250	Metal	IP54	220-240	50/60	195	3000	/	2075CMH	/	69	60℃
Mixed Flow Duct Fan	LWDE-300 (12")U-MWN-01	EC	300	Metal	IP54	110-120	60	352	3200	/	1763CFM	/	74	60℃
Mixed Flow Duct Fan	LWDE-300 (12")S-MWN-02	EC	300	Metal	IP54	220-240	50/60	352	3200	/	3500CMH	/	74	60℃
Mixed Flow Duct Fan	LWDE-350 (14")U-MWN-01	EC	350	Metal	IP54	110-120	60	659	2800	/	3467CFM	/	77	80℃
Mixed Flow Duct Fan	LWDE-350 (14")S-MWN-02	EC	350	Metal	IP54	220-240	50/60	659	2800	/	6200CMH	/	77	80℃
Mixed Flow Duct Fan	LWDE-400 (16")U-MWN-01	EC	400	Metal	IP54	110-120	60	1200	2800	/	4032CFM	/	81	80℃
Mixed Flow Duct Fan	LWDE-400 (16")S-MWN-02	EC	400	Metal	IP54	220-240	50/60	1200	2800	/	6850CMH	/	81	80℃
Ultra Silent Duct Fan	LWDA-100S-PWN-15	AC	100	Plastic	IP44	230	50	40	2550	185	319	/	25	-20℃～+50℃
Ultra Silent Duct Fan	LWDA-125S-PWN-11	AC	125	Plastic	IP44	230	50	40	2550	185	319	/	25	-20℃～+50℃
Ultra Silent Duct Fan	LWDA-150S-PWN-13	AC	150	Plastic	IP44	230	50	80	2550	309	556	/	27	-20℃～+50℃
Ultra Silent Duct Fan	LWDA-200S-PWN-14	AC	200	Plastic	IP44	230	50	130	2500	391	1236	/	29	-20℃～+50℃
Ultra Silent Duct Fan	LWDE-100 (4")U-MWN-03	EC	100	Metal	IP54	110-120	60	35	3350		410CFM		51	60℃
Ultra Silent Duct Fan	LWDE-100 (4")S-MWN-04	EC	100	Metal	IP54	220-240	50/60	35	3350	/	697CMH	EC	51	60℃
Ultra Silent Duct Fan	LWDE-125 (5")U-MWN-03	EC	125	Metal	IP54	110-120	60	35	3350	/	410CFM	EC	51	60℃
Ultra Silent Duct Fan	LWDE-125 (5")S-MWN-04	EC	125	Metal	IP54	220-240	50/60	35	3350	/	697CMH	EC	51	60℃
Ultra Silent Duct Fan	LWDE-150 (6")U-MWN-03	EC	150	Metal	IP54	110-120	60	35	3400	/	437CFM	EC	53	60℃
Ultra Silent Duct Fan	LWDE-150 (6")S-MWN-04	EC	150	Metal	IP54	220-240	50/60	35	3400	/	720CMH	EC	53	60℃
Ultra Silent Duct Fan	LWDE-200 (8")U-MWN-03	EC	200	Metal	IP54	110-120	60	140	3300	/	700CFM	EC	59	60℃
Ultra Silent Duct Fan	LWDE-200 (8")S-MWN-04	EC	200	Metal	IP54	220-240	50/60	140	3300	/	1310CMH	EC	59	60℃
Ultra Silent Duct Fan	LWDE-250 (10")U-MWN-03	EC	250	Metal	IP54	110-120	60	195	3000	/	1219CFM	EC	62	60℃
Ultra Silent Duct Fan	LWDE-250 (10")S-MWN-04	EC	250	Metal	IP54	220-240	50/60	195	3000	/	2075CMH	EC	62	60℃
Ultra Silent Duct Fan	LWDE-300 (12")U-MWN-03	EC	300	Metal	IP54	110-120	60	352	3200	/	1763CFM	EC	70	60℃
Ultra Silent Duct Fan	LWDE-300 (12")S-MWN-04	EC	300	Metal	IP54	220-240	50/60	352	3200	/	3500CMH	EC	70	60℃
Ultra Silent Duct Fan	LWDE-355 (14")U-MWN-03	EC	355	Metal	IP54	110-120	60	659	2800	/	3467CFM	EC	67	80℃
Ultra Silent Duct Fan	LWDE-355 (14")S-MWN-04	EC	355	Metal	IP54	220-240	50/60	659	2800	/	6200CMH	EC	67	80℃
Ultra Silent Duct Fan	LWDE-400 (16")U-MWN-03	EC	400	Metal	IP54	110-120	60	1200	2800	/	4032CFM	EC	70	80℃
Ultra Silent Duct Fan	LWDE-400 (16")S-MWN-04	EC	400	Metal	IP54	220-240	50/60	1200	2800	/	6850CMH	EC	70	80℃
Ultra Silent Duct Fan	LWDA-100 (4")U-MWN-03	AC	Metal	IP54	100	110-120	60	41	3350	/	410CFM	/	51	60℃
Ultra Silent Duct Fan	LWDA-100 (4")S-MWN-04	AC	Metal	IP54	100	220-240	50/60	41	2900	/	605CMH	/	49	60℃
Ultra Silent Duct Fan	LWDA-125 (5")U-MWN-03	AC	Metal	IP54	125	110-120	60	41	3350	/	410CFM	/	51	60℃
Ultra Silent Duct Fan	LWDA-125 (5")S-MWN-04	AC	Metal	IP54	125	220-240	50/60	41	2900	/	605CMH	/	49	60℃
Ultra Silent Duct Fan	LWDA-150 (6")U-MWN-03	AC	Metal	IP54	150	110-120	60	55	3400	/	437CFM	/	53	60℃
Ultra Silent Duct Fan	LWDA-150 (6")S-MWN-04	AC	Metal	IP54	150	220-240	50	41	2900	/	620CMH	/	50	60℃
Ultra Silent Duct Fan	LWDA-200 (8")U-MWN-03	AC	Metal	IP54	200	110-120	60	179	3400	/	720CFM	/	61	60℃
Ultra Silent Duct Fan	LWDA-200 (8")S-MWN-04	AC	Metal	IP54	200	220-240	50	143	2900	/	1150CMH	/	57	60℃
Ultra Silent Duct Fan	LWDA-250 (10")U-MWN-03	AC	Metal	IP54	250	110-120	60	228	3000	/	1219CFM	/	62	60℃
Ultra Silent Duct Fan	LWDA-250 (10")S-MWN-04	AC	Metal	IP54	250	220-240	50	162	2750	/	1900CMH	/	60	60℃
Ultra Silent Duct Fan	LWDA-300 (12")U-MWN-03	AC	Metal	IP54	300	110-120	60	489	3450	/	1900CFM	/	71	60℃
Ultra Silent Duct Fan	LWDA-300 (12")S-MWN-04	AC	Metal	IP54	300	220-240	50	320	2900	/	3150CMH	/	65	60℃
Ultra Silent Duct Fan	LWDA-355 (14")U-MWN-03	AC	Metal	IP54	355	110-120	60	260	1720	/	2130CFM	/	63	80℃
Ultra Silent Duct Fan	LWDA-355 (14")S-MWN-04	AC	Metal	IP54	355	220-240	50	903	2900	/	6450CMH	/	68	80℃
Ultra Silent Duct Fan	LWDA-400 (16")U-MWN-03	AC	Metal	IP54	400	110-120	60	440	1780	/	2500CFM	/	66	80℃
Ultra Silent Duct Fan	LWDA-400 (16")S-MWN-04	AC	Metal	IP54	400	220-240	50	1300	2940	/	7100CMH	/	71	80℃
Metal Duct Fan	LWDA-100S-MBN-14	AC	100	Plastic	IP32	230	50	60	2450	326	242	/	59	-25℃～+60℃
Metal Duct Fan	LWDA-125S-MBN-10	AC	125	Plastic	IP32	230	50	52	2350	326	294	/	60	-25℃～+60℃
Metal Duct Fan	LWDA-150S-MBN-12	AC	150	Plastic	IP32	230	50	72	2160	368	457	/	61	-25℃～+60℃
Metal Duct Fan	LWDA-160S-MBN-04	AC	160	Plastic	IP32	230	50	72	2200	336	494	/	63	-25℃～+60℃
Metal Duct Fan	LWDA-200S-MBN-13	AC	200	Plastic	IP32	230	50	176	2540	515	987	/	70	-25℃～+60℃
Metal Duct Fan	LWDA-250S-MBN-10	AC	250	Plastic	IP32	230	50	165	2615	515	1034	/	71	-25℃～+60℃
Metal Duct Fan	LWDA-315S-MBN-02	AC	315	Metal	IP32	230	50	220	2520	593	1680	/	80	-25℃～+60℃
Metal Duct Fan	LWDD-100L-MBN-11	DC	100	Plastic	IP44-55	12	/	30	3000	365	241	2.65	62	-25℃～+60℃
Metal Duct Fan	LWDD-100M-MBN-12	DC	100	Plastic	IP44-55	24	/	30	3000	365	241	1.32	62	-25℃～+60℃
Metal Duct Fan	LWDD-100H-MBN-13	DC	100	Plastic	IP44-55	48	/	30	3000	365	241	0.67	62	-25℃～+60℃
Metal Duct Fan	LWDD-125L-MBN-07	DC	125	Plastic	IP44-55	12	/	32	3000	365	270	2.7	62	-25℃～+60℃
Metal Duct Fan	LWDD-125M-MBN-08	DC	125	Plastic	IP44-55	24	/	32	3000	365	270	1.35	62	-25℃～+60℃
Metal Duct Fan	LWDD-125H-MBN-09	DC	125	Plastic	IP44-55	48	/	32	3000	365	270	0.7	62	-25℃～+60℃
Metal Duct Fan	LWDD-160M-MBN-02	DC	160	Plastic	IP44	24	/	100	3050	505	662	4.2	72	-25℃～+60℃
Metal Duct Fan	LWDD-160H-MBN-03	DC	160	Plastic	IP44	48	/	100	3050	505	662	2.1	72	-25℃～+60℃
Metal Duct Fan	LWDD-200L-MBN-10	DC	200	Plastic	IP44	12	/	60	2600	505	662	5	67	-25℃～+60℃
Metal Duct Fan	LWDD-200M-MBN-11	DC	200	Plastic	IP44	24	/	60	2600	505	662	2.5	67	-25℃～+60℃
Metal Duct Fan	LWDD-200H-MBN-12	DC	200	Plastic	IP44	48	/	60	2600	505	662	1.2	67	-25℃～+60℃
Metal Duct Fan	LWDD-250M-MBN-08	DC	250	Plastic	IP44	24	/	130	2638	577	1236	5	72	-25℃～+60℃
Metal Duct Fan	LWDD-250H-MBN-09	DC	250	Plastic	IP44	48	/	130	2638	577	1236	2.5	72	-25℃～+60℃
Metal Duct Fan	LWDE-100S-MBN-10	EC	100	Plastic	IP54	230	50/60	85	3300	927	324	0.65	72	-25℃～+60℃
Metal Duct Fan	LWDE-125S-MBN-06	EC	125	Plastic	IP54	230	50/60	85	3400	839	386	0.65	69	-25℃～+60℃
Metal Duct Fan	LWDE-150S-MBN-11	EC	150	Plastic	IP54	230	50/60	85	2650	608	700	0.65	66	-25℃～+60℃
Metal Duct Fan	LWDE-160S-MBN-01	EC	160	Plastic	IP54	230	50/60	85	2750	520	690	0.65	68	-25℃～+60℃
Metal Duct Fan	LWDE-200S-MBN-09	EC	200	Plastic	IP54	230	50/60	170	2700	1030	1210	1.1	71	-25℃～+60℃
Metal Duct Fan	LWDE-250S-MBN-07	EC	250	Plastic	IP54	230	50/60	170	2700	1030	1231	1.1	71	-25℃～+60℃
Metal Duct Fan	LWDE-315S-MBN-01	EC	315	Metal	IP54	230	50/60	220	2700	793	1839	1.4	77	-25℃～+60℃

Catalogs & Brochures for Duct Fan

Download the duct fan catalog, easily obtain customized ventilation solutions, optimize your system design!

What Our Customers Say after Used

"Our factory installed Longwell explosion-proof duct fans for cooling our production lines. These fans have been operating in high-temperature and high-humidity environments for two years without a single failure. Their ATEX certification gives us complete peace of mind, and using energy-saving mode significantly reduces our electricity bills. Longwell's product reliability and after-sales support are first-rate."

"I have selected Longwell EC DC duct fans for several commercial projects because they seamlessly integrate into building management systems (BMS). The fans offer precise speed regulation, are quieter than 35 decibels, and offer significant energy savings. Customers report a 20% reduction in electricity bills."

"Our textile mill requires high airflow for exhaust, and Longwell's centrifugal duct fans have helped us achieve this." It has completely met our needs. Its stainless steel construction is corrosion-resistant and well-suited to our humid climate. The air quality in our workshop has improved significantly, and our employees' productivity has also increased significantly. Maintenance is also simple, and we can perform daily cleaning ourselves."

Applications of Axial Fan

Aerospace

Duct fan is often used in drones, aircraft, helicopters, etc., to provide the thrust needed for vertical lifting. Its blades are located inside the pipeline and do not touch external objects, making it highly safe. It also makes much less noise than traditional open tail propellers.

Building Ventilation

HVAC systems are indispensable in public places like commercial and industrial buildings, as well as home spaces including bathrooms and kitchens. Duct fan is the core components of ventilation systems, responsible for key functions such as air supply, exhaust and pipeline pressurization.

Equipment Cooling

Server cabinets, frequency converters, laser equipment, welding machinery, etc. all need fan auxiliary cooling. For high heat dissipation demand of desktop computers or workstations, small duct fan is also used to provide strong directional airflow and water cooling exhaust.

Transportation

A very typical application of duct fan on transport vehicles is hovercraft, which is used as a propeller or lifting fan to provide powerful thrust. In addition, it also provides forced cooling airflow for traction ventilation and cooling systems such as EMU and subway trains.

Petrochemical Industry

Thanks to the high protection rating up to IP55 and excellent corrosion resistance, duct fan is the first choice for ventilation in oil industry, mine, tunnel and other space. Its air volume can reach up to 60,000 CFM, and can ensure the safety of construction environment.

Frequent Questions You May Have about Duct Fan

1. How Noisy are Duct Fans? How Can Their Environmental Impact be Reduced?

The noise level of duct fans generally depends on the model, speed, and installation method. Low-noise models can be kept to 30-45 dB(A), while industrial-grade fans may reach 60-75 dB(A). To reduce noise, you can take the following measures:

Choose a brushless DC fan or a backward-flowing centrifugal impeller design, which are quieter.
Install flexible joints at the fan inlet and outlet to prevent vibration from being transmitted to the duct.

Install vibration-damping brackets or soundproof enclosures for the fan, and avoid installing it in sensitive areas.

2. How can I Choose an Efficient Duct Fan Model?

● Refer to the EU ErP energy efficiency standards and prioritize models with efficiencies greater than 80%.

● Match air volume and pressure to actual needs to avoid wasting energy by exceeding actual air volume requirements.

Choose a model that supports intelligent control to facilitate integration with building automation systems for on-demand ventilation.

3. How Can I Prevent Damage to The Fan in Humid or High-temperature Environments?

● Moisture-proof protection: Choose a motor with an IP54 or higher protection rating to protect it from splashing water and dust during use. If you’re purchasing a ducted fan for a bathroom, it’s best to choose a stainless steel or coated housing.

● High-temperature-resistant design: If you’re using the ducted fan for smoke exhaust or in high-temperature environments, choose a model with a temperature resistance of >80°C, and the motor should be located outside the airflow.

● Clean the impeller and housing regularly to prevent oil or dust accumulation that could affect heat dissipation.

4. How Often do Duct Fans Need Maintenance?

We recommend an inspection every 6-12 months, but if used in an industrial environment, it’s best to inspect every 3-6 months. Inspections of ducted fans include cleaning the impeller, checking bearing lubrication, and tightening terminal blocks.

● Listen for any unusual noises, such as banging or sharp grinding sounds, to indicate impeller deformation or bearing damage.

● Touch the fan housing. If the temperature exceeds 70°C, it may be overloaded or experiencing poor heat dissipation. Observe whether there is a significant decrease in air volume. This could be caused by a clogged filter or loose belt.

5. What is The Difference between Explosion-proof Duct Fans and Ordinary Fans?

Explosion-proof fans must comply with ATEX/IECEx certification standards. Their key differences from ordinary fans are:

● Structural Design: The motor and casing are encapsulated in an explosion-proof package to prevent sparks from igniting explosive gases.

● Material Requirements: The impeller and casing are typically made of non-sparking materials like copper alloy or coated steel.

● Applicable Locations: Chemical, petroleum, and gas stations, among other environments where flammable and explosive gases or dust are present.

Providing You with More Efficient, Comfortable, Energy-saving Air Solutions

From design and production to final delivery, Longwell duct fan consistently meets the highest standards. We are committed to integrating high efficiency, low noise, and smart control into every product, delivering quiet yet powerful ventilation power for your applications!

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

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

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Catalogs & Brochures for Duct Fan

What Our Customers Say after Used

Applications of Axial Fan

Aerospace

Building Ventilation

Equipment Cooling

Transportation

Petrochemical Industry

Frequent Questions You May Have about Duct Fan

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