LWFA-E series dimensional drawing (shared by several models)

ImpellerØ300 mm11.8 in
Max airflow4,300 m³/h2,531 CFM
Max static pressure720 Pa2.89 in. wg
Noise72 dB(A)

LWFA-E-300-01 LWFA Series Direct Drive Centrifugal Blower Ø300 mm

Ø300 mm | AC | Max airflow 4,300 m³/h | Max static pressure 720 Pa | 72 dB(A)

SKU: LWFA-E-300-01 Categories: Commercial Centrifugal Blowers, Impeller Ø280–500 mm

Direct from LONGWELL
OEM / ODM
Samples in 1–3 days
Production 15–30 days
12-month warranty
CE · RoHS · ETL on request

PDFDatasheet (PDF)electrical & performance dataPDFFull product catalogueLWFA LWFA Series Direct Driven centrifugal blower · SKU on PDF p. 3

All files for LWFA-E-300-015 files · direct download

PDFFull product catalogue · model on PDF p. 3 WEBPCatalogue data table WEBPPerformance curve PDFSeries catalogue

CAD models (STEP / DWG) are released on request — see “Engineering files” below. Another format or a non-standard variant? Ask an engineer · download center

Used in

Convection ovens Tunnel ovens Commercial dryers Industrial AHUs All industries →

Proven in projects

Drying, heat treatment & ovens Range hoods & ovens Cleanroom build All case studies →

Engineering files (on request)

CAD files exist for this model and can be released for assembly checks in SolidWorks / CATIA / Creo / Inventor.

EXB2D drawing (CAXA EXB)910 KBRequest →

CAD models contain the blade geometry and are not publicly downloadable. Tell us the project; an engineer sends the file after a short check, normally within 1 business day.

Get a quote · LWFA-E-300-01

Price, curve check and lead time within 1 business day.

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WhatsApp / Phone+86 183 5827 4663 E-mail an engineersales@longwellfans.com Files for LWFA-E-300-01datasheet · catalogue · drawings · curves — listed above

Samples 1–3 days · fee credited to your order
Typically 50–200 pcs · ~30 pcs for a first validation order
T/T 30 / 70 · FOB / CIF / DDP
Released to LONGWELL standards · 12-month warranty
How ordering works →

Catalogue table & Curve LWFA-E-300-01

LWFA-E-300-01 Catalogue data table — **Catalogue data table**Series table from the catalogue — read the row for this model. Dimensions are given on the drawing of the same size.

LWFA-E-300-01 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

Files for LWFA-E-300-01: datasheet, catalogue and drawing PDFs are listed above ↑ · CAD (STEP / DWG) on request — ask an engineer.

Technical description LWFA-E-300-01

LWFA-E-300-01 is a LONGWELL LWFA Series Direct Drive Centrifugal Blower from the Impeller Ø280–500 mm range, impeller Ø300 mm, maximum airflow 4,300 m³/h, maximum static pressure 720 Pa, noise 72 dB(A). The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.

Technical data

Model	LWFA-E-300-01
Motor type	AC
Max. airflow	4,300 m³/h
Max. static pressure	720 Pa
Noise	72 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.

Company certificates

Scans of original documents held by Ningbo Longwell Electric Technology Co., Ltd.: the company ISO 9001 / 14001 / 45001 management-system certificate. Click a scan to open the original.

ISO 9001 / 14001 / 45001Management systems of Ningbo Longwell Electric Technology Co., Ltd. (company certificate).

ISO 9001 / 14001 / 45001 management system certificate — LONGWELL certificate

PDFISO 9001 / 14001 / 45001 management system certificate

Need a Declaration of Conformity for this model and your destination market? Ask us — we arrange additional certification on request.

How to order LWFA-E-300-01

Most first orders follow the same eight steps. Quantities, terms and lead times are confirmed in your quotation.

1SelectFind models by duty point in the selector or by model number, compare on the curve and add them to your RFQ list.
2Engineering checkWithin 1 business day you receive the duty-point check on the curve, price and lead time.
3SamplesStock models ship in 1–3 days.
4Validation supportDatasheets, drawings, wiring diagrams and DoC per model; test reports, CAD and register maps after a short project check or NDA.
5Order & paymentProforma invoice; first orders on T/T 30 / 70.
6Production & release15–30 days at the partner factory that builds your model, then inspected and released to LONGWELL standards with outgoing sampling to AQL 2.5.
7ShippingFOB / CIF / DDP by sea from Ningbo or Shanghai; express and air on EXW / FCA / DAP.
8After-sales12 months standard, extendable to 18–24 months by project agreement; test records retained for 5 years; 8D closed-loop for any issue; annual technical review for framework customers.

See terms, QC and FAQ →

Test & release at LONGWELL

Specified and drawn by LONGWELL; built to LONGWELL drawings by qualified partner factories; inspected and released to LONGWELL standards before shipment.

See test and release photos (8)

LONGWELL Semi-anechoic chamber — Semi-anechoic chamber

LONGWELL Test laboratory — Test laboratory

Test labs and all certificate scans →

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-300-01 this model	4,300 m³/h	720 Pa	—	—	72 dB(A)	—
LWFA-E-300-02	2,900 m³/h	408 Pa	—	—	65 dB(A)	—	View
LWFA-E-300-03	3,100 m³/h	422 Pa	—	—	66 dB(A)	—	View