Fan Manufacturing

Inside fan production: coil winding, rotor magnetisation, impeller forming and welding, balancing, run-in test, salt spray and life testing.

longwell-lwbe3g280-102ns-25-pr
By longwell / May 8, 2026 / Engineering Case Studies

Modifying a 280mm EC Centrifugal Fan Inlet for HVAC Systems

Learn how we changed the inlet cone on a 280mm EC centrifugal fan to f...

Read More »
longwell-wi-6985045290-project
By longwell / May 8, 2026 / Engineering Case Studies

2.2kW Single-Phase Kitchen Blower Reaching 830 Pa

Learn how we built a 2.2kW single-phase kitchen blower to deliver 5400...

Read More »
longwell-wi-6984982400-project
By longwell / May 8, 2026 / Engineering Case Studies

Specifying 0.2g Fan Balancing Weights for Fast Impellers

See how we engineered exact 0.2g, 0.3g, and 0.4g fan balancing weights...

Read More »
longwell-wi-6985126398-project
By longwell / May 8, 2026 / Engineering Case Studies

HVAC Motor Vibration Isolator Replacement Project

See how Longwell reverse-engineered a 1,000-piece replacement motor vi...

Read More »
longwell-lwae3g450ss-5pew-12-p
By longwell / May 6, 2026 / Engineering Case Studies

450mm EC Axial Fan Sizing for HVAC Enclosures

Read how removing a metal wall ring from a 450mm EC axial fan fixed a ...

Read More »
longwell-lwbd3g310-092nh-02-pr
By longwell / May 6, 2026 / Engineering Case Studies

Battery System Cooling: Sourcing a 48V DC Centrifugal Fan

Learn how upgrading the impeller on a 48V DC centrifugal fan cuts acou...

Read More »
longwell-wi-6983541870-project
By longwell / May 6, 2026 / Engineering Case Studies

900 m3/h Cross Flow Fan Replacement for New Energy Systems

Read how we engineered a 900 m3/h cross flow fan replacement. See the ...

Read More »
longwell-wi-6983477239-project
By longwell / May 5, 2026 / Engineering Case Studies

Indoor AHU 550W Forward Curved Centrifugal Blower Specs

Review the forward curved centrifugal blower specifications for a 220V...

Read More »
longwell-wi-6981494893-project
By longwell / April 30, 2026 / Engineering Case Studies

Compact Electronics Cooling with a 5V DC blower fan

Read how our engineering team met aggressive airflow and acoustic targ...

Read More »
longwell-lwca-60240sn-06-proje
By longwell / April 30, 2026 / Engineering Case Studies

Custom AC Cross Flow Fan for Tight Square Enclosures

Learn how we customized an AC cross flow fan with a square housing and...

Read More »