Series catalogue
PDFLWFA LWFA Series Direct Driven centrifugal blower · 1.4 MBCovers the whole series, not only this model.
Need a non-standard size or another format? Ask an engineer or search the download center.
- ImpellerØ300 mm11.8 in
- Max airflow3,100 m³/h1,825 CFM
- Max static pressure422 Pa1.69 in. wg
- Noise66 dB(A)
LWFA-E-300-03 LWFA Series Direct Drive Centrifugal Blower Ø300 mm
Ø300 mm | AC | Max airflow 3,100 m³/h | Max static pressure 422 Pa | 66 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 12-month warranty
- CE · RoHS · ETL on request
All files for LWFA-E-300-033 files · direct download
CAD models (STEP / DWG) are released on request — see “Engineering files” below. Another format or a non-standard variant? Ask an engineer · download center
Proven in: Drying, heat treatment & ovens · Range hoods & ovens · Cleanroom build — all case studies on longwellfans.com
Typical applications: Convection ovens · Tunnel ovens · Commercial dryers · Industrial AHUs — all industries
LWFA-E-300-03 is a LONGWELL LWFA Series Direct Drive Centrifugal Blower from the Impeller Ø280–500 mm range, impeller Ø300 mm, maximum airflow 3,100 m³/h, maximum static pressure 422 Pa, noise 66 dB(A). The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWFA-E-300-03 |
|---|---|
| Motor type | AC |
| Max. airflow | 3,100 m³/h |
| Max. static pressure | 422 Pa |
| Noise | 66 dB(A) |
| Impeller diameter | Ø300 mm |
| Blade diameter | 300mm |
Typical applications
- Commercial kitchen extraction
- Ventilation units and AHUs
- Process and fume extraction
Nameplate values: maximum airflow is measured at zero static pressure and maximum static pressure at zero airflow; the two never occur together. Confirm the operating point on the performance curve. Final selection is subject to the duty point (airflow / static pressure / voltage / control mode) and project verification.
Alternatives with the same impeller (Ø300 mm · AC)
Same impeller, different speed grade, power or wiring. Step up for more airflow, step down for lower noise.
| Model | Max airflow | Max static pressure | Speed | Power | Noise | Voltage | |
|---|---|---|---|---|---|---|---|
| LWFA-E-300-03 this model | 3,100 m³/h | 422 Pa | — | — | 66 dB(A) | — | |
| LWFA-E-300-02 | 2,900 m³/h | 408 Pa | — | — | 65 dB(A) | — | View |
| LWFA-E-300-01 | 4,300 m³/h | 720 Pa | — | — | 72 dB(A) | — | View |
Not sure which one? Send us the duty point (airflow / static pressure / noise limit) — use the selector or ask an engineer.
Adjacent sizesOne size up when airflow is short, one size down when it is too much
LWDD12-9-ECØ305 mm · 4,362 m³/h · 491 Pa · ECadjacent size
LWDD12-12-ECØ305 mm · 1,489 m³/h · 437 Pa · ECadjacent size
LWFA-E-280-01Ø280 mm · 2,600 m³/h · 490 Pa · ACadjacent size
LWFA-E-280-02Ø280 mm · 2,100 m³/h · 220 Pa · ACadjacent size
LWDD10-10-ECØ254 mm · 2,923 m³/h · 608 Pa · ECadjacent size
LWDD10-8-ECØ254 mm · 785 m³/h · 528 Pa · ECadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWCE-1501000SN-06Ø150 mm · 3,100 m³/h · 119 Pa · ECsimilar duty
LWAA2D300S-5MBW-05Ø300 mm · 3,090 m³/h · ACsimilar dutyLWAA2E300S-5MBW-07Ø300 mm · 3,090 m³/h · ACsimilar duty
LWAA4E350S-5MEB-02Ø350 mm · 3,090 m³/h · ACsimilar duty
LWAA6D400S-5MEB-08Ø400 mm · 3,090 m³/h · ACsimilar duty
LWAA6E400S-5MEB-06Ø400 mm · 3,090 m³/h · ACsimilar dutySee all Commercial Centrifugal Blowers · select by duty point