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 LWFA2E146-092DS-01 Centrifugal Blower Fan LONGWELL LWFA2E146-092DS-01 Centrifugal Blower Fan74223050AC92453175950
LONGWELL LWFA2E146-092DS-02 Centrifugal Blower Fan LONGWELL LWFA2E146-092DS-02 Centrifugal Blower Fan70023060AC92515190900
LONGWELL LWFA2E146-092DS-03 Centrifugal Blower Fan LONGWELL LWFA2E146-092DS-03 Centrifugal Blower Fan100923050AC924942751300
LONGWELL LWFA4E133-092DS-03 Centrifugal Blower Fan LONGWELL LWFA4E133-092DS-03 Centrifugal Blower Fan64923050AC923711801400
LONGWELL LWFA4E133-092DS-04 Centrifugal Blower Fan LONGWELL LWFA4E133-092DS-04 Centrifugal Blower Fan56723060AC924331901250
LONGWELL LWFA2E133-092DS-05 Centrifugal Blower Fan LONGWELL LWFA2E133-092DS-05 Centrifugal Blower Fan92723050AC924942501350
LONGWELL LWFA2E133-092DS-06 Centrifugal Blower Fan LONGWELL LWFA2E133-092DS-06 Centrifugal Blower Fan88623060AC926392651300
LONGWELL LWFA2E133-092DS-07 Centrifugal Blower Fan LONGWELL LWFA2E133-092DS-07 Centrifugal Blower Fan330/278/20623050AC92309/278/20670/60/471450/1250/950
LONGWELL LWFA2E120-092DS-03 Centrifugal Blower Fan LONGWELL LWFA2E120-092DS-03 Centrifugal Blower Fan43323050AC923091051700
LONGWELL LWFA2E120-092DS-04 Centrifugal Blower Fan LONGWELL LWFA2E120-092DS-04 Centrifugal Blower Fan39123060AC924021161550
LONGWELL LWFA2E120-092DS-05 Centrifugal Blower Fan LONGWELL LWFA2E120-092DS-05 Centrifugal Blower Fan41223050AC92330852100
LONGWELL LWFA2E120-092DS-06 Centrifugal Blower Fan LONGWELL LWFA2E120-092DS-06 Centrifugal Blower Fan39123060AC92443952100
LONGWELL LWFA2E133-092DS-01 Centrifugal Blower Fan LONGWELL LWFA2E133-092DS-01 Centrifugal Blower Fan53623050AC923611301100
LONGWELL LWFA2E133-092DS-02 Centrifugal Blower Fan LONGWELL LWFA2E133-092DS-02 Centrifugal Blower Fan50523060AC924021351050
LONGWELL LWFA2E120-092DS-01 Centrifugal Blower Fan LONGWELL LWFA2E120-092DS-01 Centrifugal Blower Fan29923050AC92278651300
LONGWELL LWFA2E120-092DS-02 Centrifugal Blower Fan LONGWELL LWFA2E120-092DS-02 Centrifugal Blower Fan27823060AC92350711200
LONGWELL LWFA2E146-092DS-13 Centrifugal Blower Fan LONGWELL LWFA2E146-092DS-13 Centrifugal Blower Fan886/608/41223050AC92464/438/412298/207/1781984/1422/1000
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-12 Centrifugal Blower Fan LONGWELL LWFA2E146-092DS-12 Centrifugal Blower Fan876/623/45323060AC92597/536/453288/213/1801770/1260/915
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 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 LWFA2E133-092DS-10 Centrifugal Blower Fan LONGWELL LWFA2E133-092DS-10 Centrifugal Blower Fan773/618/47423050AC92433/371/330250/205/1751200/900/700
LONGWELL LWFA2E146-092DS-01 Centrifugal Blower Fan LONGWELL LWFA2E146-092DS-01 Centrifugal Blower Fan74223050AC92453175950
Current book for Centrifugal Blower Fan

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