On July 4, 2026, LONGWELL opened an equipment-integration request for cross flow fans with customized airflow direction. The customer requested impeller diameters of 80 mm,90 mm and 100 mm, each with a requested length of 520 mm. The preferred drive was an EC motor at 230V/50 Hz with temperature-based speed control. Both aluminium-alloy and plastic impeller options were to be evaluated.

Three CAD proposals
LONGWELL recorded model designations LWCE-80520SN-07-00, LWCE-90520SN-07-00 and LWCE-100520SN-08-00. The project contains a STEP model for each variant. Model assignment was completed on July 25, 2026.
The STEP files provide geometry for integration review. The source does not establish 520 mm as the overall assembled envelope, nor confirm a finished temperature-control implementation or a selected impeller material. The technical-output and technical-review milestones have no recorded completion date.

Discuss a similar requirement
Provide the intended airflow direction, allowable impeller and overall assembly dimensions, supply voltage, temperature-control logic and target airflow and pressure through the LONGWELL contact page. Compare standard options in the LONGWELL Fan Selector.
Choose the right cross flow fan
Longwell manufactures 495 cross flow fans in-house. Send airflow, static pressure and voltage — an engineer replies with a matching model, performance curve and price within one working day.










