630mm AC axial fan requirement for transformer cooling
On July 16, 2026, LONGWELL opened an engineering project for a 630mm barrel-housing AC axial fan dedicated to transformer radiator cooling applications. The customer requested options for 380V operating configurations across both 50Hz and 60Hz power supplies, while maintaining close alignment with specific dimensional and detail requirements.
Documented technical parameters
On July 17, 2026, LONGWELL engineering issued the standard specification document for model LWAA6D630S-5MYB-04-11. The verified drawing data for the 380V 50Hz configuration includes the following parameters:
| Parameter | Value / Specification |
|---|---|
| Model Number | LWAA6D630S-5MYB-04-11 |
| Nominal Voltage | 380 VAC (342–418 VAC operating range) |
| Frequency | 50 Hz |
| Speed | 900 rpm |
| Power Input | 550 W |
| Current | 1.4 A |
| Max Airflow | 9,579 m³/h (5,635 CFM) |
| Noise Level (LpA) | 67 dB(A) |
| IP Rating / Insulation Class | IP55 / Class F |
| Operating Temperature Range | -30°C to 60°C |
The unit features cold-rolled sheet impeller construction, maintenance-free deep groove ball bearings, and support for horizontal or vertical mounting orientations. The revised drawing and specification sheet were made available for fit evaluation.
Discuss a similar requirement
If your application requires custom AC axial fans for transformer radiator cooling or industrial HVAC installations, share your voltage requirements, static pressure constraints, and mechanical dimensions with us. Contact our engineering team via the LONGWELL Contact Page or select existing fan specifications through the LONGWELL Fan Selection Tool.
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