Day: July 2, 2026

LONGWELL double inlet centrifugal fan
By longwell / July 2, 2026 / Technical Articles

Single Inlet vs Double Inlet Centrifugal Fan: When to Use Each?

In industrial ventilation and HVAC systems, centrifugal fans serve as ...

Read More »
A 400mm axial blower built with a custom motor winding for 2800 RPM
By longwell / July 2, 2026 / Engineering Case Studies

9,000 m3/h on 350 Watts: Rewinding for 2800 RPM

High speed, high airflow, tight power budget, single-phase supply. Thr...

Read More »
AC centrifugal blower for an outdoor packaged air handling unit
By longwell / July 2, 2026 / Engineering Case Studies

AC Centrifugal Blower Rated -40C to +60C for an Outdoor AHU

Anyone can quote a temperature range. Holding one from -40C to +60C co...

Read More »
A 92mm IP68 fan with fully encapsulated motor electronics
By longwell / July 2, 2026 / Engineering Case Studies

Sealing a Fan Completely Also Stops It Cooling Itself

The customer liked the airflow and not the sealing. Fixing the sealing...

Read More »