Centrifugal Blower Fan

Energy conservation is crucial today, especially in ventilation and air conditioning. Longwell has developed a complete product range of dual-inlet, direct-drive centrifugal blowers with efficient Brushless EC technology for these applications.

Our integrated motor electronics enable convenient, infinitely variable speed control of the EC fans. Up to three air flow levels can be programmed in “Constant Flow” mode, ensuring a constant air flow even if resistance changes, such as when filters become clogged.

Switching from a traditional fan with an asynchronous motor to our modern, energy-saving technology is seamless and requires no design modifications.

Current catalog for
Centrifugal Blower Fan
ImageNameAirflow(m³/h)Voltage(V)Frequency(Hz)AC/DC/ECDimensions(mm)Sound Pressure(dB(A))Sound Power(Bel)Speed
LONGWELL LWFA4E180-092SS-01 Centrifugal Blower Fan LONGWELL LWFA4E180-092SS-01 Centrifugal Blower Fan787.523050AC923151371335
LONGWELL LWFA4E180-092SS-02 Centrifugal Blower Fan LONGWELL LWFA4E180-092SS-02 Centrifugal Blower Fan772.523050AC92200.851351330
LONGWELL LWFA2E140-092SS-01 Centrifugal Blower Fan LONGWELL LWFA2E140-092SS-01 Centrifugal Blower Fan446.2523050AC923781482400
LONGWELL LWFA2E140-092SS-02 Centrifugal Blower Fan LONGWELL LWFA2E140-092SS-02 Centrifugal Blower Fan335/239/15523050AC92433/350/27890/60/501400/850/600
LONGWELL LWFA2E150-092SS-01 Centrifugal Blower Fan LONGWELL LWFA2E150-092SS-01 Centrifugal Blower Fan54623050AC924641832300
LONGWELL LWFA2E150-092SS-02 Centrifugal Blower Fan LONGWELL LWFA2E150-092SS-02 Centrifugal Blower Fan49423060AC926392302200
LONGWELL LWFA8E153-072SS-01 Centrifugal Blower Fan LONGWELL LWFA8E153-072SS-01 Centrifugal Blower Fan165/10323050AC72100/6828/22630/422
LONGWELL LWFA4E120-092SS-01 Centrifugal Blower Fan LONGWELL LWFA4E120-092SS-01 Centrifugal Blower Fan262.523050AC92294541760
LONGWELL LWFA2E120-092SS-02 Centrifugal Blower Fan LONGWELL LWFA2E120-092SS-02 Centrifugal Blower Fan20623050AC92278582400
LONGWELL LWFA2E120-092SS-03 Centrifugal Blower Fan LONGWELL LWFA2E120-092SS-03 Centrifugal Blower Fan21623060AC92391732500
LONGWELL LWFA2E133-092SS-01 Centrifugal Blower Fan LONGWELL LWFA2E133-092SS-01 Centrifugal Blower Fan29923050AC92361831850
LONGWELL LWFA2E133-092SS-02 Centrifugal Blower Fan LONGWELL LWFA2E133-092SS-02 Centrifugal Blower Fan27823060AC92464951750
LONGWELL LWFA2E133-092SS-03 Centrifugal Blower Fan LONGWELL LWFA2E133-092SS-03 Centrifugal Blower Fan319/206/14623050AC92433/350/28885/60/501600/1100/800
LONGWELL LWFA2E146-092DS-12 Centrifugal Blower Fan LONGWELL LWFA2E146-092DS-12 Centrifugal Blower Fan876/623/45323060AC92597/536/453288/213/1801770/1260/915
LONGWELL LWFA2E146-092DS-13 Centrifugal Blower Fan LONGWELL LWFA2E146-092DS-13 Centrifugal Blower Fan886/608/41223050AC92464/438/412298/207/1781984/1422/1000
LONGWELL LWFA4E180-092DS-01 Centrifugal Blower Fan LONGWELL LWFA4E180-092DS-01 Centrifugal Blower Fan1205.123050AC92247.22001250
LONGWELL LWFA4D250-102DS-04 Centrifugal Blower Fan LONGWELL LWFA4D250-102DS-04 Centrifugal Blower Fan4161.238050AC10241212001250
LONGWELL LWFA4D250-102DS-05 Centrifugal Blower Fan LONGWELL LWFA4D250-102DS-05 Centrifugal Blower Fan5226.7538050AC102383.813801360
LONGWELL LWFA6E300-138DS-01 Centrifugal Blower Fan LONGWELL LWFA6E300-138DS-01 Centrifugal Blower Fan1596/1297/103423050AC138368/273/210386/298/259480/385/310
LONGWELL LWFA2E146-092DS-10 Centrifugal Blower Fan LONGWELL LWFA2E146-092DS-10 Centrifugal Blower Fan736/515/40223050AC92515/494/443235/195/1651380/1030/830
LONGWELL LWFA2E146-092DS-11 Centrifugal Blower Fan LONGWELL LWFA2E146-092DS-11 Centrifugal Blower Fan587/433/34023050AC92314/258/191125/93/791500/1170/920
LONGWELL LWFA2E146-092DS-04 Centrifugal Blower Fan LONGWELL LWFA2E146-092DS-04 Centrifugal Blower Fan94823060AC925972951200
LONGWELL LWFA2E146-092DS-05 Centrifugal Blower Fan LONGWELL LWFA2E146-092DS-05 Centrifugal Blower Fan92723050AC925152501500
LONGWELL LWFA2E146-092DS-05 Centrifugal Blower Fan LONGWELL LWFA2E146-092DS-05 Centrifugal Blower Fan92723050AC925152501500
LONGWELL LWFA2E146-092DS-07 Centrifugal Blower Fan LONGWELL LWFA2E146-092DS-07 Centrifugal Blower Fan479/371/28323050AC92391/330/227105/75/581380/1120/880
LONGWELL LWFA2E146-092DS-08 Centrifugal Blower Fan LONGWELL LWFA2E146-092DS-08 Centrifugal Blower Fan639/494/38123050AC92536/484/386250/205/1751120/850/650
LONGWELL LWFA2E146-092DS-09 Centrifugal Blower Fan LONGWELL LWFA2E146-092DS-09 Centrifugal Blower Fan762/592/45323050AC925401/484/464260/210/1801370/1030/800
LONGWELL LWFA2E133-092DS-08 Centrifugal Blower Fan LONGWELL LWFA2E133-092DS-08 Centrifugal Blower Fan726.1523050AC92381.11901500
LONGWELL LWFA4E133-092DS-09 Centrifugal Blower Fan LONGWELL LWFA4E133-092DS-09 Centrifugal Blower Fan556.223050AC92144.2751150
LONGWELL LWFA2E133-092DS-10 Centrifugal Blower Fan LONGWELL LWFA2E133-092DS-10 Centrifugal Blower Fan773/618/47423050AC92433/371/330250/205/1751200/900/700
Current book for Centrifugal Blower Fan

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