Engineering Case Studies

Application requirements, product choices and engineering project stories from LONGWELL.

longwell-lwca-30290sn-07-proje
By longwell / August 20, 2026 / Engineering Case Studies

Repositioning the Motor on a 230V AC Cooling Unit

We turned the AC motor on a 30mm cross flow blower to clear a tight ch...

Read More »
longwell dry-type transformer cooling solution
By longwell / August 19, 2026 / Engineering Case Studies

Integrated Fan Cooling for Ultra-High-Power Dry-Type Transformers

Thermal management has become the engineering challenge in dry-type tr...

Read More »
longwell-lwa-600-project-image
By longwell / August 19, 2026 / Engineering Case Studies

Factory Cooling Requirements: 10,000 m3/h 24 Inch Industrial Drum Fan

Learn the engineering behind a 24 inch industrial drum fan. See how pu...

Read More »
longwell-lwbe3g450-102ps-24-pr
By longwell / August 19, 2026 / Engineering Case Studies

230V EC Centrifugal Fan Project: Modbus V3.0 and Custom Mounting

Read how we adapted a 230V EC centrifugal fan for a commercial unit. W...

Read More »
longwell-lwcc-dc300mb-01-proje
By longwell / August 19, 2026 / Engineering Case Studies

Mobile Condenser Cooling on a 26V Truck Bus

Read how this 26V brushless DC condenser fan overcomes dense coil stat...

Read More »
longwell-lwaa6d800s-7myb-15-pr
By longwell / August 18, 2026 / Engineering Case Studies

Harsh Climate Condenser Cooling with an 800mm AC Axial Fan

Learn how we built an 800mm AC axial fan to push 27,089 m3/h at 185 Pa...

Read More »
longwell-wi-7075113607-project
By longwell / August 17, 2026 / Engineering Case Studies

120mm Cross Flow Fan: 50,000 Unit OEM Assembly Project

Read how we engineered a custom 120mm cross flow fan assembly deliveri...

Read More »
By longwell / August 17, 2026 / Engineering Case Studies

24V PWM Blower: 365 m3/h Cooling in a 760x80mm Profile

Learn how we engineered a 24V DC cross flow fan with custom PWM speed ...

Read More »
longwell-wi-7073870371-project
By longwell / August 14, 2026 / Engineering Case Studies

1000mm EC Cross Flow Fan: 1600 m³/h Airflow at 80 Pa

Need an EC cross flow fan for tight spaces? We show how a 1000mm unit ...

Read More »
longwell-wi-7073897421-project
By longwell / August 14, 2026 / Engineering Case Studies

Designing a 48mm Neoprene Hub for High-Volume HVAC

See how we designed a cross flow fan rotor hub with chloroprene rubber...

Read More »