Airflow and specification requirements
On August 4, 2026, LONGWELL opened a project to provide technical specifications for AC 185mm axial fans in both suction and blowing configurations. The engineering team prepared drawings and datasheets for suction airflow model LWAA2E185S-7MNW-01-00 and blowing airflow model LWAA2E185B-7MNW-01-00 on August 5, 2026.
Technical specifications and dimensions
Both models share common electrical ratings and mechanical dimensions, distinguished by their designated airflow direction. The units operate on 220 VAC nominal power across a 50/60 Hz frequency range, featuring Class F motor insulation and IP54 ingress protection.
| Parameter | Value (50/60 Hz) |
|---|---|
| Nominal Voltage | 220 VAC (198–242 VAC range) |
| Speed | 2400 / 2800 ± 150 rpm |
| Power Input | 55 / 75 W ± 15% |
| Maximum Air Flow | 670 / 742 m³/h (394 / 436 CFM) ± 15% |
| Noise Level (LpA) | 51 / 52 dB(A) |
| Overall Axial Depth | 58.5 ± 3 mm |
| Outer Diameter | 185 ± 3 mm |
| Mounting Pitch Circle | Ø58 ± 0.5 mm (4-M4, Depth 5) |
| Operating Temperature Range | -30°C to +60°C |
Engineering deliverables
The completed specification documents establish technical parameters, mechanical footprints, and wiring arrangements for model numbers LWAA2E185S-7MNW-01-00 and LWAA2E185B-7MNW-01-00 to support customer fit evaluation.
Discuss a similar fan requirement
If you require tailored airflow orientations, custom mounting profiles, or electrical parameter matching for AC axial fan applications, share your operating constraints with our engineering team. Submit your system requirements through our contact page or explore fan models at LONGWELL Fan Selector.
Choose the right axial fan
Longwell manufactures 1,048 axial fans in-house. Send airflow, static pressure and voltage — an engineer replies with a matching model, performance curve and price within one working day.
