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Day: August 14, 2026

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 ...

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IE1 vs IE2 vs IE3 vs IE4 vs IE5

By longwell / August 14, 2026 / Technical Articles

IE Motor Efficiency: IE1 vs IE2 vs IE3 vs IE4 vs IE5 Compared

One of the most important measurement for electric motor is its effici...

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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...

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