Forward Curved Centrifugal Fans
Forward Curved Fans, also known as squirrel cage fans, are a type of centrifugal fan commonly used in various applications. Forward Curved Fans feature a curved blade design where the blades curve in the direction of the fan's rotation. This design creates a paddlewheel-like appearance, resembling a squirrel cage, hence the name. The blades are typically mounted on a hub, and the fan assembly is housed within a circular or rectangular casing.
Model no.: LWFE Series eC forward centrifugal fan -BLEC Motor Type
Impeller Size: 108mm, 120mm, 133mm, 140mm, 160mm, 180mm
Motor Type: Brushless EC(BLEC) external rotor motor
Certification: CE, UL, RoHS, CCC, ETL, etc
Features:
- Energy saving up tp 30% = reduced operating cost
- Increased refrigeration COP ( Coeficient of performance )
- Simple adaption of air flow
- Significantly reduced noise;
- Long and maintenance free service life
- No abrasion, less filtering required
| Model | Motor diameter | Rated Voltage |
Frequency | Rated Power |
Rated Current |
Speed | Air Flow | Air Pressure |
Noise | Curve |
| mm | V | Hz | W | A | RPM | m³/h | Pa | dBA | ||
| LWFE3G108-072NS-01 | 72 | 230 | 50/60 | 82 | 0.65 | 3340 | 329.6 | 329.6 | 57 | / |
| LWFE3G120-072NS-01 | 72 | 230 | 50/60 | 90 | 0.67 | 3230 | 350.2 | 412 | 67 | / |
| LWFE3G133-072NS-01 | 72 | 230 | 50/60 | 85 | 0.67 | 2290 | 432.6 | 288.4 | 63 | / |
| LWFE3G140-072NS-01 | 72 | 230 | 50/60 | 70 | 0.58 | 1910 | 484.1 | 216.3 | 72 | / |
| LWFE3G140-072NS-02 | 72 | 230 | 50/60 | 115 | 0.85 | 2060 | 494.4 | 844.6 | 74 | / |
| LWFE3G160-072NS-01 | 72 | 230 | 50/60 | 115 | 0.85 | 1800 | 638.6 | 906.4 | 64 | / |
| LWFE3G160-072NS-02 | 72 | 230 | 50/60 | 155 | 1.1 | 3050 | 648.9 | 988.8 | 68 | / |
| LWFE3G160-092NS-03 | 92 | 230 | 50/60 | 230 | 1.65 | 3300 | 803.4 | 927 | 75 | / |
Model no.: LWFA Series AC Forward curved centrifugal fan
Impeller Size: 120mm - 500mm (diameter )
Motor Type: AC External Rotor Motor
Certification: CE, UL, RoHS, CCC, ETL, etc
Features:
Motor Protection: Thermal overload Protector ( TOP)
Impeller Material: Galvanized METAL
Operating Temp: -30°C~+60°C
Voltage: 230V, 115v, 380V
Type of protection: IP54/IP44;
Bearing Types: Maintenance-free ball bearings
Mode of operation: Continuous operation (S1)
Insulation class: "B"
| Model | Motor diameter | Rated Voltage |
Frequency | Rated Power |
Rated Current |
Speed | Air Flow | Air Pressure |
Noise | Capacitor | Curve |
| mm | V | Hz | W | A | RPM | m³/h | Pa | dBA | uF | ||
| LWFA2E108-072NS | 72 | 230 | 50 | 30 | / | 2550 | 155 | 185 | 53 | 1 | / |
| LWFA2E120-092NS | 92 | 230 | 50 | 50~63 | 0.25~0.3 | 2550~2800 | 206~216 | 278~391 | 51~53 | 1.5 | ①② |
| LWFA2E133-092NS | 92 | 230 | 50/60 | 83~95 | 0.32~0.4 | 2300~2350 | 278~299 | 361~464 | 61~63 | 2 | ①② |
| LWFA2E140-092NS- | 92 | 230 | 50/60 | 100~110 | 0.42~0.47 | 1500~1600 | 314~335 | 330~484 | 52~58 | 2 | ①② |
| LWFA2E140-092NS-03 | 92 | 230 | 50/60 | 40~100 | 0.2~0.42 | 900~1600 | 175~340 | 309~371 | 32~52 | 2 | ①②③ |
| LWFA2E150-092NS-01 | 92 | 230 | 50/60 | 135~180 | 0.65~0.82 | 2600~2850 | 500~551 | 464~649 | 67~71 | 4 | ①② |
| LWFA2E160-092NS-01 | 92 | 230 | 50 | 68~230 | 0.3~1 | 1400~1800 | 412~525 | 155~556 | 58~69 | 2~4 | ①② |
| LWFA4E180-092NS-01 | 92 | 230 | 50 | 85 | 0.52 | 1450 | 773 | 196 | 69 | 3 | ① |
| LWFA4D200-102NT-01 | 102 | 230/380 | 50 | 330 | 0.63~.52 | 1270~1280 | 1236 | 227 | 59 | 8 | ① |
| LWFA4D225-138NT-01 | 138 | 220/380 | 50 | 300/510 | 0.81/2.3 | 930/1320 | 1339~1761 | 237~288 | 59~65 | 15 | ①②③ |
| LWFA4D250-138NT-01 | 102/138 | 220/380 | 50 | 320~900 | 0.81~4.1 | 900~1400 | 1751~2575 | 165~407 | 62~72 | 10~25 | ①②③ |
| LWFA4D280-188NT-01 | 138/188 | 220/380 | 50 | 450~1700 | 0.88~3.2 | 900~1360 | 2318~3502 | 247~464 | 65~77 | 15/30 | ①②③ |
| LWFA4D315-188NT-01 | 138/188 | 220/380 | 50 | 720~2300 | 1.5~7.3 | 870~1360 | 2987~4429 | 249~618 | 249~80 | 20/30 | ①②③ |
| LWFA4D355-188NT-01 | 188 | 380 | 50 | 1150~3500 | 2.3~5.9 | 900~1340 | 4172~5665 | 412~906 | 70~80 | / | ①② |
| LWFA4D400-188NT-01 | 188 | 380 | 50 | 1700~4800 | 3.7~8 | 700~1400 | 5974~7313 | 345~1030 | 65~82 | / | ①②③ |
| LWFA6D450-188NT-01 | 188 | 380 | 50 | 2000~3500 | 4.1~5.9 | 680~930 | 7416~7725 | 371~639 | 68~74 | / | ①② |
| LWFA6D500-188NT-01 | 188 | 380 | 50 | 4400 | 7.6 | 900 | 9064 | 917 | 75 | / | ① |
Forward Curved Centrifugal Fan Advantages:
High Airflow Capacity: Forward Curved Fans are known for their excellent airflow capacity. The curved blade design allows for efficient movement of large volumes of air, making them suitable for applications that require substantial air circulation.
Lower Noise Levels: Compared to other fan types, Forward Curved Fans tend to operate at lower noise levels. The curved blades help to minimize turbulence and reduce noise generation, making them suitable for environments where noise reduction is a priority.
Cost-Effective: Forward Curved Fans are often more cost-effective compared to other fan types. Their simpler design and manufacturing process contribute to lower production costs, which can make them a budget-friendly choice for various applications.
Forward Curved Centrifugal Fan Limitations:
Lower Efficiency at Higher Pressures: As the pressure increases, the fan's ability to maintain optimal performance decreases, resulting in reduced airflow and efficiency. Therefore, AC Forward Curved Fans may not be suitable for applications that require high static pressure capabilities.
Limited Static Pressure Capabilities: AC Forward Curved Fans are better suited for applications with relatively low static pressure requirements. Their design is optimized for delivering high airflow volumes but may struggle to generate significant pressure differentials. Thus, AC centrifugal fan may not be the best choice for applications where overcoming high resistance or pressure drops is essential.
Applications for Forward Curved Fans:
Forward Curved Fans find their best applications in scenarios that prioritize high airflow capacity, moderate pressure requirements, and noise reduction. Some common applications where Forward Curved Fans are commonly used include:
HVAC Systems: Forward Curved Fans are widely used in heating, ventilation, and air conditioning systems, providing efficient airflow for cooling and ventilation purposes in commercial and residential buildings.
Air Handling Units: These fans are often employed in air handling units to circulate air within industrial and commercial facilities, ensuring proper ventilation and maintaining air quality.
Electronics Cooling: Forward Curved Fans are suitable for cooling electronics and preventing heat build-up in components such as computers, servers, and electronic enclosures.
General Ventilation: Centrifugal fan can be utilized for general ventilation purposes in warehouses, factories, gyms, and other large spaces that require adequate air movement.
FAQ:
1, Are you 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 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.
Hot Tags: ac forward curve centrifugal fan, China, suppliers, manufacturers, factory, customized, buy, price, for sale, made in China,
Hot Tags: forward curved centrifugal fans, China, suppliers, manufacturers, factory, customized, buy, price, for sale, made in China, double inlet centrifugal blower, DC Backward Curve Centrifugal Fan, evalator blower, dual inlet centrifugal blower, radial centrifugal blower, cross flow cooling fan
