Air Blowers (Air Knife / Air Pump)

High-speed air blowers for blow-off, drying and air-knife applications that need a concentrated air stream. Final selection is confirmed at the duty point (airflow / static pressure / voltage / control mode) and by project verification.

Filter by duty point40 models in this category

Filters use nameplate maximum values (max airflow at zero static pressure, max static pressure at zero airflow). Check the actual operating point on the performance curve of each model.

ModelSizeMax airflowm³/hMax static pressurePaPowerWNoisedB(A)SpeedrpmVoltageV
LWA-1100-01 LWA-1100-01AC 43 mm 1,200 2,550 1,100 230 Details
LWA-1100-02 LWA-1100-02AC 43 mm 1,200 2,650 1,100 120 Details
LWA-1100-03 LWA-1100-03AC 43 mm 1,200 2,550 1,100 230 Details
LWA-1100-04 LWA-1100-04AC 43 mm 1,200 2,650 1,100 2,850 220-240 Details
LWA-370-01 LWA-370-01AC 37 mm 750 1,500 370 230 Details
LWA-370-02 LWA-370-02AC 37 mm 760 1,650 370 120 Details
LWA-370-03 LWA-370-03AC 37 mm 750 1,500 370 230 Details
LWA-370-04 LWA-370-04AC 37 mm 760 1,500 370 2,850 220-240 Details
LWA-480-01 LWA-480-01AC 37 mm 800 1,800 480 120 Details
LWA-550-01 LWA-550-01AC 37 mm 800 1,800 550 230 Details
LWA-550-02 LWA-550-02AC 37 mm 850 1,900 550 120 Details
LWA-550-03 LWA-550-03AC 37 mm 800 1,800 550 230 Details
LWA-550-04 LWA-550-04AC 37 mm 800 1,800 550 2,850 220-240 Details
LWA-680-01 LWA-680-01AC 43 mm 850 1,950 680 230 Details
LWA-680-02 LWA-680-02AC 43 mm 900 2,200 680 120 Details
LWA-680-03 LWA-680-03AC 43 mm 850 1,950 680 230 Details
LWA-680-04 LWA-680-04AC 43 mm 850 1,950 680 2,850 220-240 Details
LWA-750-01 LWA-750-01AC 43 mm 900 2,200 750 230 Details
LWA-750-02 LWA-750-02AC 43 mm 960 2,550 750 120 Details
LWA-750-03 LWA-750-03AC 43 mm 900 2,200 750 230 Details
LWA-750-04 LWA-750-04AC 43 mm 900 2,550 750 2,850 220-240 Details
LWA-950-01 LWA-950-01AC 43 mm 1,050 2,400 950 230 Details
LWA-950-02 LWA-950-02AC 43 mm 1,050 2,600 950 120 Details
LWA-950-03 LWA-950-03AC 43 mm 1,050 2,400 950 230 Details
LWA-950-04 LWA-950-04AC 43 mm 1,050 2,600 950 2,850 220-240 Details
LWB-180B-01 LWB-180B-01AC 24 mm 600 800 180 230 Details
LWB-180B-02 LWB-180B-02AC 24 mm 600 800 180 120 Details
LWB-180B-03 LWB-180B-03AC 24 mm 600 800 180 220 Details
LWB-250E-01 LWB-250E-01AC 31 mm 700 900 250 230 Details
LWB-250E-02 LWB-250E-02AC 31 mm 700 1,400 250 120 Details
LWB-250E-03 LWB-250E-03AC 31 mm 700 1,000 250 220 Details
LWB-280B-01 LWB-280B-01AC 24 mm 800 1,000 280 230 Details
LWB-280B-02 LWB-280B-02AC 24 mm 800 1,000 280 120 Details
LWB-280B-03 LWB-280B-03AC 24 mm 800 1,000 280 220 Details
LWT-1125-01 LWT-1125-01AC 49 mm 4,100 1,700 1,125 230 Details
LWT-1125-02 LWT-1125-02AC 49 mm 4,100 1,700 1,125 120 Details
LWT-1500-01 LWT-1500-01AC 49 mm 4,300 1,900 1,500 230 Details
LWT-1500-02 LWT-1500-02AC 49 mm 4,300 1,900 1,500 120 Details
LWT-2250-01 LWT-2250-01AC 49 mm 4,800 2,200 2,250 230 Details
LWT-2250-02 LWT-2250-02AC 49 mm 4,800 2,200 2,250 120 Details

Air Blowers (Air Knife / Air Pump) — selection guide

Air Blowers (Air Knife / Air Pump): 40 models, frame sizes 24–49 mm, maximum airflow 600–4,800 m³/h, static pressure to 2,650 Pa, AC motors, across 0 series.

AC air blowers for blow-off, drying and air-knife duties: LWB compact blowers (Ø24–37 mm impeller, 600–850 m³/h at 800–1,900 Pa, 180–550 W) and LWT blowers (Ø43–49 mm, 850–4,800 m³/h at 1,700–2,650 Pa, 680–2,250 W) on 230 V, 120 V and 220–240 V. These are high-speed units that deliver a concentrated air stream rather than volume ventilation.

How to select from this range

  1. Select by the pressure at the nozzle or air knife, then check airflow; the two are traded across the curve.
  2. Specify 120 V for North American equipment, 230 V for Europe; both are listed.
  3. Plan for the sound level — high-pressure blowers are loud; remote mounting and a silencer are usual.

Where these fans are used

  • Air knives and blow-off drying
  • Inflatables and air mattresses
  • Dust removal on production lines
  • Combustion air for burners

Curves marked “measured” come from our own test rigs per AMCA 210 / ISO 5801 methods; digitised catalogue curves are flagged as such in the selector — see the test labs and certificates. Final selection is confirmed at the duty point and by project validation.

FAQ — Air Blowers (Air Knife / Air Pump)

What is the difference between the LWB and LWT blowers?

LWB are the compact 180–550 W units to 1,900 Pa; LWT are the 680–2,250 W units to 2,650 Pa and 4,800 m³/h for air knives and larger drying duties.

Related selections

Ningbo Longwell Electric Technology Co., Ltd. · No. 100 Henan Road, Ditang, Yuyao, Ningbo, Chinasales@longwellfans.com · WhatsApp +86 183 5827 4663 · Mon–Fri 8:30–17:30 (UTC+8), reply within 1 business dayHow to order · Privacy notice
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