Representative image of the series — dimensions and configuration of this model are given in the drawing and data table below.

ImpellerØ43 mm1.7 in
Max airflow163 m³/h96 CFM
Max static pressure21 Pa0.08 in. wg
Voltage230 V
Speed2,300 rpm
Input power21 W
Noise40 dB(A)

LWCA-43420SN-07 AC Cross Flow Fan Ø43 mm

Ø43 mm | AC | Max airflow 163 m³/h | Max static pressure 21 Pa | 40 dB(A)

SKU: LWCA-43420SN-07 Categories: AC Cross Flow Fans, Cross Flow Fans, Impeller Ø30–50 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 catalogueCross FLow Fan · SKU on PDF p. 28

All files for LWCA-43420SN-073 files · direct download

PDFFull product catalogue · model on PDF p. 28 WEBPDimensional drawing

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

Air curtains Air heaters Dry-type transformer cooling Electric heaters All industries →

Proven in projects

Air curtain OEM programme Trench convector & heating terminals Consumer air cooler & fan ODM 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.

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 · LWCA-43420SN-07

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 LWCA-43420SN-07datasheet · 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 →

Dimensional drawing LWCA-43420SN-07

LWCA-43420SN-07 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

Files for LWCA-43420SN-07: datasheet, catalogue and drawing PDFs are listed above ↑ · CAD (STEP / DWG) on request — ask an engineer.

Technical description LWCA-43420SN-07

LWCA-43420SN-07 is a LONGWELL AC Cross Flow Fan from the AC Cross Flow Fans range, impeller Ø43 mm, rated 230 V AC, maximum airflow 163 m³/h, maximum static pressure 21 Pa, noise 40 dB(A), input power 21 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.

Technical data

Model	LWCA-43420SN-07
Series	LWCA43420
Motor type	AC
Phase	1-phase
Inlet	Single inlet
Rated voltage	230 V
Frequency	50 Hz
Input power	21 W
Speed	2,300 rpm
Max. airflow	163 m³/h
Max. static pressure	21 Pa
Noise	40 dB(A)
Ambient temperature	-25 ~ 60 °C
Impeller diameter	Ø43 mm
Outlet length	420mm
Impeller material	Aluminum alloy
Insulation class	B/F/H
Bearing	Maintenance-free ball bearings
Duty	S1

Typical applications

Indoor air-conditioning units
Air curtains and door air barriers
Elevator and cabinet ventilation
Linear air supply in appliances

Series LWCA43420: models in the same series share the impeller and motor platform and differ in speed grade, voltage or lead-out / terminal-box configuration — compare them in the table below or ask for the best fit at your duty point.

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 LWCA-43420SN-07

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 (Ø43 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
LWCA-43420SN-07 this model	163 m³/h	21 Pa	2,300 rpm	21 W	40 dB(A)	230 V
LWCA-4390SN-07	41 m³/h	18 Pa	2,700 rpm	14 W	37 dB(A)	230 V	View
LWCA-4390UN-06	48 m³/h	22 Pa	3,000 rpm	17 W	37 dB(A)	115 V	View
LWCA-43150SN-07	61 m³/h	16 Pa	2,500 rpm	15 W	38 dB(A)	230 V	View
LWCA-43190SN-07	70 m³/h	14 Pa	2,400 rpm	15 W	38 dB(A)	230 V	View
LWCA-43150UN-06	72 m³/h	22 Pa	3,000 rpm	17 W	38 dB(A)	115 V	View
LWCA-43190UN-06	86 m³/h	22 Pa	2,900 rpm	18 W	39 dB(A)	115 V	View
LWCA-43250SN-07	90 m³/h	15 Pa	2,500 rpm	19 W	38 dB(A)	230 V	View
LWCA-43250UN-06	110 m³/h	21 Pa	2,800 rpm	22 W	39 dB(A)	115 V	View
LWCA-43290SN-07	115 m³/h	11 Pa	2,300 rpm	19 W	37 dB(A)	230 V	View
LWCA-43350SN-07	130 m³/h	15 Pa	2,400 rpm	21 W	39 dB(A)	230 V	View
LWCA-43290UN-06	135 m³/h	21 Pa	2,800 rpm	23 W	40 dB(A)	115 V	View
LWCA-43350UN-06	150 m³/h	19 Pa	2,700 rpm	21 W	41 dB(A)	115 V	View
LWCA-43420UN-06	170 m³/h	20 Pa	2,600 rpm	22 W	42 dB(A)	115 V	View