Cross-Flow Air Curtain B Series

Source note

Selection Snapshot

Cross-Flow Air Curtain B Series is positioned for wider commercial openings needing stronger cross-flow air separation than Q series. The table below uses CHIC 2026 PDF-backed rows and keeps confidence wording visible where the source model maps to a Linggong LK variant.

Source: CHIC GROUP HVAC 2026 PDF p.48 · medium source: source rows are FM models mapped to Linggong LK-FM variants; confirm exact order model

Sample variantsLK-FM4009 / LK-FM4012 / LK-FM4015 / LK-FM4018

Applicationwider commercial openings needing stronger cross-flow air separation than Q series

Selection factorsConfirm opening width, mounting height, voltage, air speed requirement, noise target and exact LK-FM variant

Selection check

Air curtains must be selected by door width, mounting height, air speed and voltage. Medium rows require exact Linggong variant confirmation before final quotation.

Documented checks

Source-backed model checks

Cross-Flow Air Curtain B series technical and selection table
Linggong variant	PDF source model	Voltage	Power	Airflow m³/h	Air speed m/s	Noise dB	Dimensions mm	Confidence	Next step
LK-FM4009	FM-4009	220-50	160	1630	11-13	53	900x175x210	medium	Ask about this model
LK-FM4012	FM-4012	220-50	220	2500	11-13	54	1200x175x210	medium	Ask about this model
LK-FM4015	FM-4015	220-50	260	3580	11-13	55	1500x175x210	medium	Ask about this model
LK-FM4018	FM-4018	220-50	320	3900	11-13	56	1800x175x210	medium	Ask about this model
LK-FM4020	FM-4020	220-50	350	4280	11-13	56	2000x175x210	medium	Ask about this model

Application fit

Where this air curtain fits

Use this series when the opening needs an air barrier to reduce dust, insects, hot/cold air exchange or conditioned-air loss.

Choose the model by opening width and installation height first, then confirm air speed, noise level, voltage and mounting clearance.

Send these details

Door width and mounting height
Indoor/outdoor temperature difference
Voltage and installation space
Noise target and required air speed

Compare

Compare air curtain families

Q/B cross-flow models fit general openings, X5 and industrial centrifugal models fit stronger air speed needs, heating models add temperature rise, ceiling embedded models hide the body, and cold-storage models help reduce cold-air loss.

Core Engineering Features

Source-backed model checks set against the published values on this page. Every point below is taken from this model’s own data.

Sample variantsLK-FM4009 / LK-FM4012 / LK-FM4015 / LK-FM4018

Applicationwider commercial openings needing stronger cross-flow air separation than Q series

Selection factorsConfirm opening width, mounting height, voltage, air speed requirement, noise target and exact LK-FM variant

Voltage220-50

Power160

Airflow m³/h1630

Quality Assurance & Warranty

Air curtain orders are checked at the factory before shipping, because barrier performance depends on discharge speed matching the door the unit serves.

Applied to this model: Sample variants LK-FM4009 / LK-FM4012 / LK-FM4015 / LK-FM4018, Application wider commercial openings needing stronger cross-flow air separation than Q series. These checks are run against that specification before the unit ships.

Discharge and length checkChecks cover motor start-up, discharge air speed, airflow, unit length and panel fit, plus model-to-table parameter matching.

Documented complianceCE and related files cover the listed air curtain families; see the documents section below.

Warranty supportWarranty for air curtain orders is confirmed with the quotation for your destination market.

Service parts for air curtainsMotors, PTC heating modules, control boards and common service items.

OEM/ODM & Supply Options

For distributors and contractors working on entrance projects, the supply side adapts to your market instead of one fixed air curtain build.

For this model (Sample variants LK-FM4009 / LK-FM4012 / LK-FM4015 / LK-FM4018, Application wider commercial openings needing stronger cross-flow air separation than Q series), the OEM route can start from that base specification rather than a blank sheet.

OEM/ODMBadging, packaging and control options for air curtain orders, including branded cartons and manual inserts.

Length and speed variantsUnit length, discharge speed and ambient or heated configuration are reviewed for your doorway.

Voltage & plug optionsVoltage and plug configuration for this product line can be reviewed during quotation.

Documentation & bulk supplyCatalogues, technical sheets, available certificates, volume pricing and distributor programs for this product line.

Order quantity & lead timeMinimum order quantity, sampling and production lead time are confirmed per model and order volume — see the B2B supply page for how sourcing enquiries are handled.

Documents & Compliance

Download the cross-flow air curtain B series datasheet (PDF) used for the technical values on this page.

Download cross-flow air curtain B series datasheet (PDF)

Confirm the exact model and current documentation before quotation or project documentation.

View all certifications and compliance documents by product scope

Frequently asked questions

Can I choose by door width only?

No. Door width is only the first step; mounting height, air speed, voltage, heating need and noise target also matter.

Why do some rows say medium confidence?

The numeric source row is clear, but the PDF model may map to a Linggong LK-prefixed or combined variant. Confirm exact order model before final quotation.

What should I send for quote?

Send opening width, mounting height, voltage, indoor/outdoor conditions, preferred series and destination.

Product inquiry

Confirm the published specifications, then add this product to your quote list.

Cross-Flow Air Curtain B series